./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.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_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10b157bbf40e5e7436c6fc32559679f4a195c114 ....................................................................................................................................................................................................................................................................................................................... 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_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10b157bbf40e5e7436c6fc32559679f4a195c114 ............................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-22 12:56:27,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:27,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:27,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:27,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:27,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:27,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:27,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:27,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:27,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:27,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:27,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:27,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:27,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:27,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:27,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:27,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:27,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:27,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:27,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:27,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:27,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:27,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:27,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:27,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:27,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:27,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:27,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:27,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:27,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:27,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:27,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:27,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:27,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:27,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:27,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:27,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:27,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:27,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:27,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:27,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:27,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:27,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:27,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:27,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:27,292 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:27,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:27,293 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:27,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:27,293 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:27,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:27,293 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:27,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:27,295 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:27,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:27,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:27,296 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:27,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:27,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:27,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:27,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:27,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:27,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:27,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:27,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:27,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:27,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:27,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:27,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:27,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:27,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:27,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:27,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:27,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:27,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:27,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:27,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:27,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:27,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:27,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:27,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:27,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:27,304 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-11-22 12:56:27,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:27,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:27,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:27,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:27,605 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:27,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-22 12:56:27,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/a1d673667/435eb593d54f4fe19e8a08f773366660/FLAGfcace3170 [2020-11-22 12:56:28,188 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:28,188 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-22 12:56:28,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/a1d673667/435eb593d54f4fe19e8a08f773366660/FLAGfcace3170 [2020-11-22 12:56:28,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/a1d673667/435eb593d54f4fe19e8a08f773366660 [2020-11-22 12:56:28,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:28,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:28,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:28,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:28,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:28,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15aed36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28, skipping insertion in model container [2020-11-22 12:56:28,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:28,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:28,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:28,707 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:28,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:28,757 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:28,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28 WrapperNode [2020-11-22 12:56:28,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:28,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:28,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:28,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:28,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:28,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:28,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:28,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:28,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... [2020-11-22 12:56:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:28,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:28,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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 [2020-11-22 12:56:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:56:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:56:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:56:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:56:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:56:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:29,822 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:29,823 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:56:29,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:29 BoogieIcfgContainer [2020-11-22 12:56:29,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:29,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:29,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:29,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:29,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:28" (1/3) ... [2020-11-22 12:56:29,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2da6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:29, skipping insertion in model container [2020-11-22 12:56:29,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:28" (2/3) ... [2020-11-22 12:56:29,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2da6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:29, skipping insertion in model container [2020-11-22 12:56:29,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:29" (3/3) ... [2020-11-22 12:56:29,834 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-11-22 12:56:29,844 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:29,849 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:29,858 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:29,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:29,893 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:29,893 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:29,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:29,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:29,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:29,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:29,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-22 12:56:29,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 12:56:29,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:29,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:29,912 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:29,918 INFO L82 PathProgramCache]: Analyzing trace with hash 823485581, now seen corresponding path program 1 times [2020-11-22 12:56:29,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:29,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37877663] [2020-11-22 12:56:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:30,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37877663] [2020-11-22 12:56:30,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:30,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:30,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15771415] [2020-11-22 12:56:30,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:30,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:30,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:30,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:30,082 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-22 12:56:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:30,100 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-11-22 12:56:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:30,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 12:56:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:30,125 INFO L225 Difference]: With dead ends: 41 [2020-11-22 12:56:30,125 INFO L226 Difference]: Without dead ends: 19 [2020-11-22 12:56:30,128 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 [2020-11-22 12:56:30,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-22 12:56:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-22 12:56:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-22 12:56:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-22 12:56:30,164 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2020-11-22 12:56:30,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:30,164 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-22 12:56:30,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-22 12:56:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:56:30,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:30,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:30,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:56:30,167 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:30,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1728640572, now seen corresponding path program 1 times [2020-11-22 12:56:30,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:30,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788342480] [2020-11-22 12:56:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:30,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:30,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:30,390 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:56:30,391 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:30,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:56:30,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:30 BoogieIcfgContainer [2020-11-22 12:56:30,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:30,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:30,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:30,435 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:30,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:29" (3/4) ... [2020-11-22 12:56:30,438 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:56:30,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:30,443 INFO L168 Benchmark]: Toolchain (without parser) took 1927.95 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 45.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:30,443 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:30,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.53 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 56.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:30,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.89 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 54.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:30,447 INFO L168 Benchmark]: Boogie Preprocessor took 44.19 ms. Allocated memory is still 92.3 MB. Free memory was 54.2 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:30,448 INFO L168 Benchmark]: RCFGBuilder took 975.12 ms. Allocated memory is still 92.3 MB. Free memory was 52.5 MB in the beginning and 40.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:30,449 INFO L168 Benchmark]: TraceAbstraction took 607.33 ms. Allocated memory is still 92.3 MB. Free memory was 40.5 MB in the beginning and 45.9 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:30,449 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 92.3 MB. Free memory was 45.9 MB in the beginning and 45.5 MB in the end (delta: 429.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:30,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.53 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 56.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.89 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 54.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.19 ms. Allocated memory is still 92.3 MB. Free memory was 54.2 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 975.12 ms. Allocated memory is still 92.3 MB. Free memory was 52.5 MB in the beginning and 40.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 607.33 ms. Allocated memory is still 92.3 MB. Free memory was 40.5 MB in the beginning and 45.9 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 92.3 MB. Free memory was 45.9 MB in the beginning and 45.5 MB in the end (delta: 429.8 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 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=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_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 > 51 [L51] COND FALSE !(j0 == 0x400) [L54] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L108] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1092c.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=21occurred 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, 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-a4ecdab [2020-11-22 12:56:33,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:33,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:33,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:33,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:33,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:33,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:33,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:33,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:33,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:33,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:33,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:33,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:33,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:33,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:33,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:33,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:33,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:33,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:33,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:33,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:33,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:33,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:33,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:33,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:33,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:33,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:33,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:33,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:33,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:33,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:33,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:33,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:33,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:33,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:33,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:33,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:33,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:33,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:33,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:33,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:33,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:56:33,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:33,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:33,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:33,348 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:33,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:33,349 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:33,349 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:33,350 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:33,350 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:33,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:33,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:33,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:33,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:33,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:33,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:33,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:33,354 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:33,354 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:56:33,355 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:56:33,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:33,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:33,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:33,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:33,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:33,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:56:33,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:33,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:33,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:33,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:33,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:33,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:33,358 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:56:33,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:56:33,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:33,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:33,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:33,359 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_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-11-22 12:56:33,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:33,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:33,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:33,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:33,764 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:33,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-22 12:56:33,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/0e0dbe1db/89a362e1be8240039bbb1322f88a7a8e/FLAG5e8eed405 [2020-11-22 12:56:34,477 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:34,482 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-22 12:56:34,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/0e0dbe1db/89a362e1be8240039bbb1322f88a7a8e/FLAG5e8eed405 [2020-11-22 12:56:34,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/data/0e0dbe1db/89a362e1be8240039bbb1322f88a7a8e [2020-11-22 12:56:34,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:34,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:34,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:34,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:34,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:34,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:34" (1/1) ... [2020-11-22 12:56:34,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fad9617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:34, skipping insertion in model container [2020-11-22 12:56:34,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:34" (1/1) ... [2020-11-22 12:56:34,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:34,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:35,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:35,096 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:35,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:35,200 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:35,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35 WrapperNode [2020-11-22 12:56:35,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:35,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:35,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:35,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:35,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:35,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:35,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:35,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:35,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... [2020-11-22 12:56:35,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:35,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:35,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:35,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:35,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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 [2020-11-22 12:56:35,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 12:56:35,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 12:56:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:56:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:56:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:56:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:37,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:37,151 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:56:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:37 BoogieIcfgContainer [2020-11-22 12:56:37,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:37,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:37,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:37,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:37,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:34" (1/3) ... [2020-11-22 12:56:37,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7d36a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:37, skipping insertion in model container [2020-11-22 12:56:37,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:35" (2/3) ... [2020-11-22 12:56:37,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7d36a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:37, skipping insertion in model container [2020-11-22 12:56:37,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:37" (3/3) ... [2020-11-22 12:56:37,161 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-11-22 12:56:37,173 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:37,178 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:56:37,191 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:56:37,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:37,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:37,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:37,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:37,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:37,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:37,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:37,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-22 12:56:37,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:56:37,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:37,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:37,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:37,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:37,255 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-22 12:56:37,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:37,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685511387] [2020-11-22 12:56:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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 [2020-11-22 12:56:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:37,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:56:37,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:37,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:37,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685511387] [2020-11-22 12:56:37,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:37,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:56:37,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293491848] [2020-11-22 12:56:37,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:37,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:37,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:37,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:37,488 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-22 12:56:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:37,509 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-22 12:56:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:37,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-22 12:56:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:37,521 INFO L225 Difference]: With dead ends: 73 [2020-11-22 12:56:37,521 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 12:56:37,524 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 [2020-11-22 12:56:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 12:56:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 12:56:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 12:56:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-22 12:56:37,569 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-22 12:56:37,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:37,570 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-22 12:56:37,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:37,570 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-22 12:56:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:56:37,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:37,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:37,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:56:37,783 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:37,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-22 12:56:37,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:37,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807663673] [2020-11-22 12:56:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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 [2020-11-22 12:56:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:37,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:56:37,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:38,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:38,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807663673] [2020-11-22 12:56:38,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:38,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:56:38,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246541906] [2020-11-22 12:56:38,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:56:38,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:38,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:56:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:56:38,378 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-11-22 12:56:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:38,714 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-22 12:56:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:38,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-22 12:56:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:38,716 INFO L225 Difference]: With dead ends: 42 [2020-11-22 12:56:38,716 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 12:56:38,717 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 [2020-11-22 12:56:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 12:56:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 12:56:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 12:56:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-22 12:56:38,722 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-22 12:56:38,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:38,723 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-22 12:56:38,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:56:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-22 12:56:38,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:56:38,723 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:38,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:38,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:56:38,947 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:38,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-11-22 12:56:38,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:38,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089962126] [2020-11-22 12:56:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/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 [2020-11-22 12:56:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:39,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:39,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:39,459 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:39,460 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:39,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:56:39,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:39 BoogieIcfgContainer [2020-11-22 12:56:39,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:39,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:39,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:39,701 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:39,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:37" (3/4) ... [2020-11-22 12:56:39,704 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:39,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5477175d-1f87-4dee-962a-52c1a522e9b9/bin/utaipan/witness.graphml [2020-11-22 12:56:39,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:39,772 INFO L168 Benchmark]: Toolchain (without parser) took 4958.66 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 63.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,772 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 35.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:39,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.06 ms. Allocated memory is still 73.4 MB. Free memory was 55.8 MB in the beginning and 54.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 52.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,774 INFO L168 Benchmark]: Boogie Preprocessor took 63.64 ms. Allocated memory is still 73.4 MB. Free memory was 52.7 MB in the beginning and 51.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,775 INFO L168 Benchmark]: RCFGBuilder took 1835.17 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 51.7 MB in the end (delta: -840.7 kB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,776 INFO L168 Benchmark]: TraceAbstraction took 2545.57 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 51.4 MB in the beginning and 66.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,776 INFO L168 Benchmark]: Witness Printer took 69.05 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 63.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:39,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 35.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.06 ms. Allocated memory is still 73.4 MB. Free memory was 55.8 MB in the beginning and 54.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 52.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.64 ms. Allocated memory is still 73.4 MB. Free memory was 52.7 MB in the beginning and 51.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1835.17 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 51.7 MB in the end (delta: -840.7 kB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2545.57 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 51.4 MB in the beginning and 66.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.05 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 63.3 MB in the end (delta: 3.5 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: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=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_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 > 51 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L51] COND TRUE j0 == 0x400 [L52] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L108] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1092c.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 2276 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...