./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0281.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0281.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:24:57,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:24:57,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:24:58,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:24:58,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:24:58,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:24:58,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:24:58,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:24:58,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:24:58,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:24:58,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:24:58,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:24:58,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:24:58,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:24:58,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:24:58,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:24:58,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:24:58,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:24:58,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:24:58,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:24:58,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:24:58,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:24:58,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:24:58,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:24:58,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:24:58,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:24:58,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:24:58,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:24:58,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:24:58,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:24:58,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:24:58,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:24:58,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:24:58,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:24:58,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:24:58,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:24:58,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:24:58,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:24:58,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:24:58,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:24:58,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:24:58,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:24:58,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:24:58,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:24:58,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:24:58,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:24:58,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:24:58,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:24:58,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:24:58,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:24:58,080 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:24:58,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:24:58,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:24:58,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:24:58,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:24:58,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:24:58,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:24:58,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:24:58,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:24:58,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:24:58,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:24:58,084 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:24:58,084 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:24:58,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:24:58,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:24:58,085 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 [2021-12-17 07:24:58,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:24:58,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:24:58,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:24:58,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:24:58,296 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:24:58,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-12-17 07:24:58,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b04ab246/67871c4362c34220bb85650fc175c243/FLAG7a4ae77b5 [2021-12-17 07:24:58,685 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:24:58,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-12-17 07:24:58,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b04ab246/67871c4362c34220bb85650fc175c243/FLAG7a4ae77b5 [2021-12-17 07:24:58,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b04ab246/67871c4362c34220bb85650fc175c243 [2021-12-17 07:24:58,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:24:58,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:24:58,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:24:58,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:24:58,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:24:58,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:58,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19649050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58, skipping insertion in model container [2021-12-17 07:24:58,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:58,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:24:58,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:24:58,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-12-17 07:24:58,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:24:58,924 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:24:58,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-12-17 07:24:58,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:24:58,982 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:24:58,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58 WrapperNode [2021-12-17 07:24:58,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:24:58,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:24:58,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:24:58,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:24:58,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,037 INFO L137 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 293 [2021-12-17 07:24:59,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:24:59,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:24:59,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:24:59,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:24:59,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:24:59,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:24:59,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:24:59,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:24:59,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (1/1) ... [2021-12-17 07:24:59,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:24:59,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:24:59,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 07:24:59,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 07:24:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:24:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 07:24:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:24:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 07:24:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 07:24:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 07:24:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:24:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:24:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 07:24:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:24:59,252 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:24:59,260 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:24:59,557 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:24:59,562 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:24:59,562 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-12-17 07:24:59,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:24:59 BoogieIcfgContainer [2021-12-17 07:24:59,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:24:59,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:24:59,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:24:59,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:24:59,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:24:58" (1/3) ... [2021-12-17 07:24:59,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7540866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:24:59, skipping insertion in model container [2021-12-17 07:24:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:24:58" (2/3) ... [2021-12-17 07:24:59,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7540866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:24:59, skipping insertion in model container [2021-12-17 07:24:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:24:59" (3/3) ... [2021-12-17 07:24:59,576 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2021-12-17 07:24:59,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:24:59,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:24:59,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:24:59,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:24:59,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:24:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:24:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:24:59,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:24:59,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:24:59,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:24:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:24:59,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2510696, now seen corresponding path program 1 times [2021-12-17 07:24:59,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:24:59,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352856207] [2021-12-17 07:24:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:24:59,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:24:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:24:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:24:59,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 07:24:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352856207] [2021-12-17 07:24:59,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352856207] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:24:59,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:24:59,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:24:59,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239124544] [2021-12-17 07:24:59,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:24:59,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:24:59,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 07:24:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:24:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:24:59,794 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:24:59,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:24:59,809 INFO L93 Difference]: Finished difference Result 145 states and 236 transitions. [2021-12-17 07:24:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:24:59,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-17 07:24:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:24:59,822 INFO L225 Difference]: With dead ends: 145 [2021-12-17 07:24:59,822 INFO L226 Difference]: Without dead ends: 70 [2021-12-17 07:24:59,826 INFO L932 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 [2021-12-17 07:24:59,829 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:24:59,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:24:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-17 07:24:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-12-17 07:24:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:24:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2021-12-17 07:24:59,858 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 12 [2021-12-17 07:24:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:24:59,858 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2021-12-17 07:24:59,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:24:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2021-12-17 07:24:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 07:24:59,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:24:59,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:24:59,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 07:24:59,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:24:59,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:24:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash -697724311, now seen corresponding path program 1 times [2021-12-17 07:24:59,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:24:59,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374845529] [2021-12-17 07:24:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:24:59,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:24:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:24:59,893 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 07:24:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:24:59,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 07:24:59,942 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 07:24:59,944 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:24:59,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 07:24:59,950 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 07:24:59,952 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:24:59,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:24:59 BoogieIcfgContainer [2021-12-17 07:24:59,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:24:59,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:24:59,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:24:59,995 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:24:59,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:24:59" (3/4) ... [2021-12-17 07:24:59,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 07:24:59,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:24:59,999 INFO L158 Benchmark]: Toolchain (without parser) took 1287.11ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 54.3MB in the beginning and 54.0MB in the end (delta: 297.7kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-12-17 07:24:59,999 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:25:00,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.28ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 54.1MB in the beginning and 79.5MB in the end (delta: -25.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:25:00,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.75ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:25:00,004 INFO L158 Benchmark]: Boogie Preprocessor took 55.46ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:25:00,004 INFO L158 Benchmark]: RCFGBuilder took 465.59ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 82.6MB in the end (delta: -8.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-12-17 07:25:00,005 INFO L158 Benchmark]: TraceAbstraction took 429.61ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 54.0MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-12-17 07:25:00,005 INFO L158 Benchmark]: Witness Printer took 3.35ms. Allocated memory is still 107.0MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:25:00,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.28ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 54.1MB in the beginning and 79.5MB in the end (delta: -25.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.75ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.46ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.59ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 82.6MB in the end (delta: -8.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 429.61ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 54.0MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.35ms. Allocated memory is still 107.0MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 250]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 155, overapproximation of bitwiseAnd at line 173, overapproximation of someBinaryArithmeticDOUBLEoperation at line 190, overapproximation of someBinaryDOUBLEComparisonOperation at line 20. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L149-L163] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L242] double x = __VERIFIER_nondet_double(); [L244] COND TRUE x < -1.0 && x > 1.0 [L246] CALL, EXPR __ieee754_asin(x) [L166] double t, w, p, q, c, r, s; [L167] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L169] ieee_double_shape_type gh_u; [L170] gh_u.value = (x) [L171] EXPR gh_u.parts.msw [L171] (hx) = gh_u.parts.msw [L173] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L174] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L185] COND TRUE ix < 0x3fe00000 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L186] COND FALSE !(ix < 0x3e400000) [L190] t = x * x [L191-L194] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L195-L196] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L197] w = p / q [L198] return x + x * w; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L246] RET, EXPR __ieee754_asin(x) [L246] double res = __ieee754_asin(x); [L249] CALL, EXPR isnan_double(res) [L20] return x != x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \result=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L249] RET, EXPR isnan_double(res) [L249] COND TRUE !isnan_double(res) [L250] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 101 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=74occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 [2021-12-17 07:25:00,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0281.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:25:01,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:25:01,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:25:01,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:25:01,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:25:01,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:25:01,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:25:01,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:25:01,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:25:01,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:25:01,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:25:01,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:25:01,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:25:01,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:25:01,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:25:01,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:25:01,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:25:01,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:25:01,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:25:01,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:25:01,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:25:01,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:25:01,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:25:01,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:25:01,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:25:01,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:25:01,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:25:01,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:25:01,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:25:01,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:25:01,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:25:01,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:25:01,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:25:01,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:25:01,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:25:01,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:25:01,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:25:01,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:25:01,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:25:01,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:25:01,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:25:01,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:25:01,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:25:01,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:25:01,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:25:01,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:25:01,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:25:01,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:25:01,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:25:01,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:25:01,747 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:25:01,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:25:01,748 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:25:01,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:25:01,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:25:01,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:25:01,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:25:01,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:25:01,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:25:01,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:25:01,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:25:01,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:25:01,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:25:01,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:25:01,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:25:01,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:25:01,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:25:01,752 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 [2021-12-17 07:25:02,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:25:02,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:25:02,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:25:02,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:25:02,056 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:25:02,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-12-17 07:25:02,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c225dd7/d6fe412e79f04ba38e65cbf4579f96ee/FLAG18d8e25b4 [2021-12-17 07:25:02,475 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:25:02,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-12-17 07:25:02,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c225dd7/d6fe412e79f04ba38e65cbf4579f96ee/FLAG18d8e25b4 [2021-12-17 07:25:02,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c225dd7/d6fe412e79f04ba38e65cbf4579f96ee [2021-12-17 07:25:02,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:25:02,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:25:02,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:25:02,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:25:02,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:25:02,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e0a59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02, skipping insertion in model container [2021-12-17 07:25:02,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:25:02,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:25:02,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-12-17 07:25:02,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:25:02,752 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:25:02,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-12-17 07:25:02,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:25:02,811 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:25:02,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02 WrapperNode [2021-12-17 07:25:02,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:25:02,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:25:02,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:25:02,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:25:02,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,861 INFO L137 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 293 [2021-12-17 07:25:02,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:25:02,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:25:02,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:25:02,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:25:02,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:25:02,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:25:02,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:25:02,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:25:02,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (1/1) ... [2021-12-17 07:25:02,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:25:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:25:02,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 07:25:02,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 07:25:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:25:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-17 07:25:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:25:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:25:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:25:03,075 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:25:03,076 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:25:19,773 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:25:19,778 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:25:19,778 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-12-17 07:25:19,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:25:19 BoogieIcfgContainer [2021-12-17 07:25:19,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:25:19,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:25:19,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:25:19,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:25:19,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:25:02" (1/3) ... [2021-12-17 07:25:19,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106ac79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:25:19, skipping insertion in model container [2021-12-17 07:25:19,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:25:02" (2/3) ... [2021-12-17 07:25:19,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106ac79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:25:19, skipping insertion in model container [2021-12-17 07:25:19,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:25:19" (3/3) ... [2021-12-17 07:25:19,790 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2021-12-17 07:25:19,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:25:19,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:25:19,835 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:25:19,840 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:25:19,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:25:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:25:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:25:19,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:25:19,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:25:19,854 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:25:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:25:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2510696, now seen corresponding path program 1 times [2021-12-17 07:25:19,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:25:19,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398307202] [2021-12-17 07:25:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:25:19,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:25:19,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:25:19,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:25:19,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:25:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:25:20,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:25:20,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:25:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:25:20,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:25:20,689 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:25:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398307202] [2021-12-17 07:25:20,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398307202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:25:20,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:25:20,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:25:20,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215812206] [2021-12-17 07:25:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:25:20,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:25:20,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:25:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:25:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:25:20,714 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:25:20,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:25:20,725 INFO L93 Difference]: Finished difference Result 78 states and 123 transitions. [2021-12-17 07:25:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:25:20,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-17 07:25:20,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:25:20,730 INFO L225 Difference]: With dead ends: 78 [2021-12-17 07:25:20,730 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:25:20,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:25:20,734 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:25:20,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:25:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:25:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:25:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:25:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:25:20,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-12-17 07:25:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:25:20,750 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:25:20,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:25:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:25:20,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:25:20,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:25:20,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 07:25:20,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:25:20,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:25:21,448 INFO L858 garLoopResultBuilder]: For program point L250(line 250) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L854 garLoopResultBuilder]: At program point L168-2(lines 168 172) the Hoare annotation is: false [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point L168-3(lines 168 172) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L854 garLoopResultBuilder]: At program point L135-2(lines 135 139) the Hoare annotation is: false [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 200) no Hoare annotation was computed. [2021-12-17 07:25:21,449 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 185 200) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L854 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: false [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 199) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 188) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L854 garLoopResultBuilder]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 119) no Hoare annotation was computed. [2021-12-17 07:25:21,450 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L861 garLoopResultBuilder]: At program point L255(lines 234 256) the Hoare annotation is: true [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 99) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 145) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L140-1(lines 133 147) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 118) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 145) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 46) no Hoare annotation was computed. [2021-12-17 07:25:21,451 INFO L854 garLoopResultBuilder]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 200) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 45) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L854 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-12-17 07:25:21,452 INFO L858 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 117) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L176-1(lines 176 180) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L854 garLoopResultBuilder]: At program point L176-2(lines 176 180) the Hoare annotation is: false [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L176-3(lines 174 185) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 96) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2021-12-17 07:25:21,453 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 253) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L211(lines 211 227) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L244-2(lines 244 253) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 165 232) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 66) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2021-12-17 07:25:21,454 INFO L854 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: false [2021-12-17 07:25:21,454 INFO L858 garLoopResultBuilder]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2021-12-17 07:25:21,455 INFO L854 garLoopResultBuilder]: At program point L146(lines 133 147) the Hoare annotation is: false [2021-12-17 07:25:21,455 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-12-17 07:25:21,455 INFO L858 garLoopResultBuilder]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2021-12-17 07:25:21,455 INFO L854 garLoopResultBuilder]: At program point L131(lines 24 132) the Hoare annotation is: false [2021-12-17 07:25:21,455 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:25:21,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 250) no Hoare annotation was computed. [2021-12-17 07:25:21,456 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 60) no Hoare annotation was computed. [2021-12-17 07:25:21,456 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2021-12-17 07:25:21,456 INFO L854 garLoopResultBuilder]: At program point L231(lines 165 232) the Hoare annotation is: false [2021-12-17 07:25:21,456 INFO L854 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-12-17 07:25:21,456 INFO L858 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-12-17 07:25:21,456 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 252) no Hoare annotation was computed. [2021-12-17 07:25:21,457 INFO L858 garLoopResultBuilder]: For program point L216-1(lines 216 221) no Hoare annotation was computed. [2021-12-17 07:25:21,457 INFO L854 garLoopResultBuilder]: At program point L216-2(lines 216 221) the Hoare annotation is: false [2021-12-17 07:25:21,457 INFO L858 garLoopResultBuilder]: For program point L216-3(lines 216 221) no Hoare annotation was computed. [2021-12-17 07:25:21,459 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-17 07:25:21,460 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:25:21,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:25:21 BoogieIcfgContainer [2021-12-17 07:25:21,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:25:21,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:25:21,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:25:21,467 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:25:21,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:25:19" (3/4) ... [2021-12-17 07:25:21,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:25:21,478 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-12-17 07:25:21,478 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-17 07:25:21,478 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:25:21,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:25:21,514 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:25:21,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:25:21,515 INFO L158 Benchmark]: Toolchain (without parser) took 19019.41ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 45.9MB in the beginning and 46.5MB in the end (delta: -551.8kB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,515 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:25:21,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.39ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 41.0MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.18ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 38.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,516 INFO L158 Benchmark]: Boogie Preprocessor took 54.02ms. Allocated memory is still 62.9MB. Free memory was 38.4MB in the beginning and 35.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,516 INFO L158 Benchmark]: RCFGBuilder took 16865.25ms. Allocated memory is still 62.9MB. Free memory was 35.8MB in the beginning and 34.8MB in the end (delta: 942.2kB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,517 INFO L158 Benchmark]: TraceAbstraction took 1681.92ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 34.3MB in the beginning and 52.8MB in the end (delta: -18.5MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,517 INFO L158 Benchmark]: Witness Printer took 47.88ms. Allocated memory is still 86.0MB. Free memory was 52.8MB in the beginning and 46.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 07:25:21,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.39ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 41.0MB in the end (delta: 4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.18ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 38.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.02ms. Allocated memory is still 62.9MB. Free memory was 38.4MB in the beginning and 35.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 16865.25ms. Allocated memory is still 62.9MB. Free memory was 35.8MB in the beginning and 34.8MB in the end (delta: 942.2kB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1681.92ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 34.3MB in the beginning and 52.8MB in the end (delta: -18.5MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 47.88ms. Allocated memory is still 86.0MB. Free memory was 52.8MB in the beginning and 46.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 250]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 15 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-17 07:25:21,739 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-17 07:25:21,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE