./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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/float_req_bl_1131a.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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:03:49,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:03:49,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:03:49,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:03:49,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:03:49,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:03:49,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:03:49,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:03:49,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:03:49,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:03:49,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:03:49,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:03:49,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:03:49,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:03:49,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:03:49,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:03:49,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:03:49,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:03:49,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:03:49,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:03:49,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:03:49,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:03:49,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:03:49,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:03:49,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:03:49,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:03:49,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:03:49,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:03:49,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:03:49,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:03:49,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:03:49,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:03:49,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:03:49,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:03:49,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:03:49,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:03:49,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:03:49,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:03:49,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:03:49,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:03:49,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:03:49,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:03:49,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:03:49,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:03:49,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:03:49,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:03:49,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:03:49,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:03:49,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:03:49,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:03:49,229 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:03:49,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:03:49,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:03:49,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:03:49,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:03:49,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:03:49,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:03:49,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:03:49,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:03:49,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:03:49,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:03:49,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:49,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:03:49,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:03:49,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:03:49,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:03:49,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:03:49,233 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:03:49,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:03:49,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:03:49,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:03:49,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2021-12-21 12:03:49,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:03:49,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:03:49,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:03:49,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:03:49,445 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:03:49,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-12-21 12:03:49,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f2ea808/c9e3e2cda5c4466fbce5802034033514/FLAGad7870243 [2021-12-21 12:03:49,833 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:03:49,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-12-21 12:03:49,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f2ea808/c9e3e2cda5c4466fbce5802034033514/FLAGad7870243 [2021-12-21 12:03:50,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f2ea808/c9e3e2cda5c4466fbce5802034033514 [2021-12-21 12:03:50,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:03:50,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:03:50,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:50,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:03:50,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:03:50,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a125caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50, skipping insertion in model container [2021-12-21 12:03:50,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:03:50,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:03:50,442 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/float_req_bl_1131a.c[2945,2958] [2021-12-21 12:03:50,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:50,460 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:03:50,481 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/float_req_bl_1131a.c[2945,2958] [2021-12-21 12:03:50,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:50,490 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:03:50,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50 WrapperNode [2021-12-21 12:03:50,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:50,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:50,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:03:50,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:03:50,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,518 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-12-21 12:03:50,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:50,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:03:50,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:03:50,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:03:50,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:03:50,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:03:50,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:03:50,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:03:50,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (1/1) ... [2021-12-21 12:03:50,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:50,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:03:50,606 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) [2021-12-21 12:03:50,623 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 [2021-12-21 12:03:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:03:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:03:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 12:03:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 12:03:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 12:03:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 12:03:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:03:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:03:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 12:03:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-21 12:03:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:03:50,759 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:03:50,760 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:03:51,011 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:03:51,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:03:51,015 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-21 12:03:51,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:51 BoogieIcfgContainer [2021-12-21 12:03:51,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:03:51,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:03:51,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:03:51,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:03:51,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:03:50" (1/3) ... [2021-12-21 12:03:51,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a49f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:51, skipping insertion in model container [2021-12-21 12:03:51,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:50" (2/3) ... [2021-12-21 12:03:51,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a49f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:51, skipping insertion in model container [2021-12-21 12:03:51,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:51" (3/3) ... [2021-12-21 12:03:51,025 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131a.c [2021-12-21 12:03:51,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:03:51,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:03:51,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:03:51,082 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 [2021-12-21 12:03:51,083 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:03:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2021-12-21 12:03:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-21 12:03:51,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:51,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:51,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-12-21 12:03:51,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:03:51,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517562319] [2021-12-21 12:03:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:51,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:03:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:03:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:03:51,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:03:51,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517562319] [2021-12-21 12:03:51,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517562319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:03:51,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:03:51,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 12:03:51,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80578700] [2021-12-21 12:03:51,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:03:51,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 12:03:51,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:03:51,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 12:03:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 12:03:51,263 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-12-21 12:03:51,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:03:51,279 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2021-12-21 12:03:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 12:03:51,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2021-12-21 12:03:51,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:03:51,292 INFO L225 Difference]: With dead ends: 92 [2021-12-21 12:03:51,292 INFO L226 Difference]: Without dead ends: 43 [2021-12-21 12:03:51,294 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 [2021-12-21 12:03:51,296 INFO L933 BasicCegarLoop]: 63 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, 63 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 [2021-12-21 12:03:51,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:03:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-21 12:03:51,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-21 12:03:51,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-12-21 12:03:51,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2021-12-21 12:03:51,325 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2021-12-21 12:03:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:03:51,325 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2021-12-21 12:03:51,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-12-21 12:03:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2021-12-21 12:03:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-21 12:03:51,327 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:51,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:51,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:03:51,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2021-12-21 12:03:51,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:03:51,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190404413] [2021-12-21 12:03:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:51,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:03:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:03:51,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 12:03:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:03:51,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 12:03:51,490 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 12:03:51,491 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:03:51,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 12:03:51,496 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 12:03:51,498 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:03:51,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:03:51 BoogieIcfgContainer [2021-12-21 12:03:51,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:03:51,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:03:51,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:03:51,527 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:03:51,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:51" (3/4) ... [2021-12-21 12:03:51,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 12:03:51,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:03:51,531 INFO L158 Benchmark]: Toolchain (without parser) took 1281.79ms. Allocated memory is still 134.2MB. Free memory was 106.1MB in the beginning and 101.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-12-21 12:03:51,531 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:51,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.96ms. Allocated memory is still 134.2MB. Free memory was 105.8MB in the beginning and 109.8MB in the end (delta: -4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 12:03:51,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.40ms. Allocated memory is still 134.2MB. Free memory was 109.8MB in the beginning and 107.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:51,535 INFO L158 Benchmark]: Boogie Preprocessor took 18.96ms. Allocated memory is still 134.2MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:51,536 INFO L158 Benchmark]: RCFGBuilder took 478.83ms. Allocated memory is still 134.2MB. Free memory was 106.0MB in the beginning and 90.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-21 12:03:51,536 INFO L158 Benchmark]: TraceAbstraction took 508.16ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 102.5MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:51,536 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 101.9MB in the end (delta: 612.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:51,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.96ms. Allocated memory is still 134.2MB. Free memory was 105.8MB in the beginning and 109.8MB in the end (delta: -4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.40ms. Allocated memory is still 134.2MB. Free memory was 109.8MB in the beginning and 107.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.96ms. Allocated memory is still 134.2MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.83ms. Allocated memory is still 134.2MB. Free memory was 106.0MB in the beginning and 90.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 508.16ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 102.5MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 134.2MB. Free memory was 102.5MB in the beginning and 101.9MB in the end (delta: 612.4kB). 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = __VERIFIER_nondet_float(); [L129] float y = 1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [\old(x)=8589934593, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); VAL [\old(x)=8589934593, \result=1, ix=2139095039, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=8589934593, \old(y)=8589934591, one_fmod=1, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=8589934593, \old(y)=8589934591, one_fmod=1, sx=9, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=8589934593, \old(y)=8589934591, hx=2139095040, hy=0, one_fmod=1, sx=9, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, res=8589934592, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L137] reach_error() VAL [one_fmod=1, res=8589934592, x=8589934593, y=8589934591, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 63 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, 63 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=47occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 [2021-12-21 12:03:51,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/float_req_bl_1131a.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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:03:53,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:03:53,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:03:53,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:03:53,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:03:53,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:03:53,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:03:53,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:03:53,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:03:53,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:03:53,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:03:53,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:03:53,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:03:53,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:03:53,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:03:53,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:03:53,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:03:53,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:03:53,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:03:53,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:03:53,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:03:53,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:03:53,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:03:53,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:03:53,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:03:53,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:03:53,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:03:53,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:03:53,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:03:53,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:03:53,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:03:53,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:03:53,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:03:53,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:03:53,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:03:53,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:03:53,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:03:53,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:03:53,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:03:53,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:03:53,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:03:53,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 12:03:53,534 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:03:53,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:03:53,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:03:53,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:03:53,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:03:53,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:03:53,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:03:53,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:03:53,536 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:03:53,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:03:53,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:03:53,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:03:53,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:03:53,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:03:53,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:03:53,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:03:53,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:03:53,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:03:53,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:03:53,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:03:53,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:03:53,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:53,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:03:53,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:03:53,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 12:03:53,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2021-12-21 12:03:53,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:03:53,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:03:53,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:03:53,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:03:53,835 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:03:53,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-12-21 12:03:53,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b74f9b7e/9d1e504fb1b44b28ac896390b15b7874/FLAG49b03764c [2021-12-21 12:03:54,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:03:54,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-12-21 12:03:54,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b74f9b7e/9d1e504fb1b44b28ac896390b15b7874/FLAG49b03764c [2021-12-21 12:03:54,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b74f9b7e/9d1e504fb1b44b28ac896390b15b7874 [2021-12-21 12:03:54,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:03:54,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:03:54,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:54,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:03:54,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:03:54,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:54,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d569866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54, skipping insertion in model container [2021-12-21 12:03:54,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:54,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:03:54,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:03:54,880 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/float_req_bl_1131a.c[2945,2958] [2021-12-21 12:03:54,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:54,896 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:03:54,975 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/float_req_bl_1131a.c[2945,2958] [2021-12-21 12:03:54,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:54,990 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:03:54,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54 WrapperNode [2021-12-21 12:03:54,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:54,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:54,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:03:54,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:03:55,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,035 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-12-21 12:03:55,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:55,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:03:55,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:03:55,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:03:55,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:03:55,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:03:55,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:03:55,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:03:55,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:54" (1/1) ... [2021-12-21 12:03:55,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:55,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:03:55,132 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) [2021-12-21 12:03:55,156 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 [2021-12-21 12:03:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:03:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-21 12:03:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 12:03:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 12:03:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-21 12:03:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 12:03:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:03:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:03:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-21 12:03:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 12:03:55,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:03:55,219 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:03:55,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:03:55,350 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.AssertionError: Not a regular bitvector operator with bitvector result: bvshl at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.notSimplified(BitvectorUtils.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplify_NonConstantCase(BitvectorUtils.java:291) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplifiedResult(BitvectorUtils.java:286) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils.termWithLocalSimplification(BitvectorUtils.java:217) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1490) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:405) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:391) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerm(Expression2Term.java:120) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addAssignment(Statements2TransFormula.java:288) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:703) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:733) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-21 12:03:55,352 INFO L158 Benchmark]: Toolchain (without parser) took 664.37ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 28.5MB in the end (delta: 16.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-12-21 12:03:55,353 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:55,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.57ms. Allocated memory is still 62.9MB. Free memory was 44.9MB in the beginning and 44.3MB in the end (delta: 591.1kB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-21 12:03:55,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:55,354 INFO L158 Benchmark]: Boogie Preprocessor took 55.84ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:55,355 INFO L158 Benchmark]: RCFGBuilder took 258.05ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 28.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 12:03:55,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.57ms. Allocated memory is still 62.9MB. Free memory was 44.9MB in the beginning and 44.3MB in the end (delta: 591.1kB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.84ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.05ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 28.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: AssertionError: Not a regular bitvector operator with bitvector result: bvshl: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-21 12:03:55,406 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl