./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0931.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_0931.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 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:44:38,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:44:38,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:44:39,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:44:39,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:44:39,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:44:39,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:44:39,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:44:39,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:44:39,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:44:39,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:44:39,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:44:39,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:44:39,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:44:39,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:44:39,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:44:39,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:44:39,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:44:39,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:44:39,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:44:39,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:44:39,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:44:39,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:44:39,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:44:39,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:44:39,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:44:39,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:44:39,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:44:39,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:44:39,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:44:39,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:44:39,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:44:39,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:44:39,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:44:39,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:44:39,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:44:39,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:44:39,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:44:39,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:44:39,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:44:39,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:44:39,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:44:39,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:44:39,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:44:39,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:44:39,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:44:39,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:44:39,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:44:39,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:44:39,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:44:39,085 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:44:39,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:44:39,086 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:44:39,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:44:39,088 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:44:39,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:44:39,088 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:44:39,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:44:39,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:44:39,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:44:39,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:44:39,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:39,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:44:39,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:44:39,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:44:39,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:44:39,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:44:39,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:44:39,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:44:39,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:44:39,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 [2022-02-20 16:44:39,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:44:39,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:44:39,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:44:39,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:44:39,334 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:44:39,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2022-02-20 16:44:39,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a99ad2c/7cab6aceef6e4a02a51dde5170edce1d/FLAGe5b040539 [2022-02-20 16:44:39,729 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:44:39,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2022-02-20 16:44:39,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a99ad2c/7cab6aceef6e4a02a51dde5170edce1d/FLAGe5b040539 [2022-02-20 16:44:40,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a99ad2c/7cab6aceef6e4a02a51dde5170edce1d [2022-02-20 16:44:40,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:44:40,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:44:40,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:40,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:44:40,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:44:40,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4eb8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40, skipping insertion in model container [2022-02-20 16:44:40,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:44:40,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:44:40,347 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_0931.c[3146,3159] [2022-02-20 16:44:40,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:40,356 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:44:40,395 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_0931.c[3146,3159] [2022-02-20 16:44:40,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:40,406 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:44:40,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40 WrapperNode [2022-02-20 16:44:40,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:40,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:40,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:44:40,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:44:40,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,462 INFO L137 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 165 [2022-02-20 16:44:40,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:40,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:44:40,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:44:40,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:44:40,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:44:40,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:44:40,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:44:40,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:44:40,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (1/1) ... [2022-02-20 16:44:40,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:40,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:44:40,536 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) [2022-02-20 16:44:40,557 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 [2022-02-20 16:44:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:44:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:44:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:44:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:44:40,670 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:44:40,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:44:40,916 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:44:40,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:44:40,921 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-02-20 16:44:40,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:40 BoogieIcfgContainer [2022-02-20 16:44:40,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:44:40,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:44:40,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:44:40,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:44:40,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:44:40" (1/3) ... [2022-02-20 16:44:40,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7a7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:40, skipping insertion in model container [2022-02-20 16:44:40,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:40" (2/3) ... [2022-02-20 16:44:40,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7a7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:40, skipping insertion in model container [2022-02-20 16:44:40,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:40" (3/3) ... [2022-02-20 16:44:40,929 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931.c [2022-02-20 16:44:40,932 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:44:40,932 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:44:40,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:44:40,980 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 [2022-02-20 16:44:40,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:44:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 36 states have internal predecessors, (60), 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) [2022-02-20 16:44:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:44:40,999 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:44:41,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:44:41,000 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:44:41,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:44:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash 412524763, now seen corresponding path program 1 times [2022-02-20 16:44:41,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:44:41,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722737479] [2022-02-20 16:44:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:44:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:44:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:44:41,143 INFO L290 TraceCheckUtils]: 0: Hoare triple {40#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~ln2_hi_log~0 := 0.69313812256;~ln2_lo_log~0 := 9.0580006145E-6;~two25_log~0 := 3.3554432E7;~Lg1_log~0 := 0.66666668653;~Lg2_log~0 := 0.40000000596;~Lg3_log~0 := 0.28571429849;~Lg4_log~0 := 0.22222198546;~Lg5_log~0 := 0.1818357259;~Lg6_log~0 := 0.15313838422;~Lg7_log~0 := 0.1479819864;~zero_log~0 := 0.0; {40#true} is VALID [2022-02-20 16:44:41,144 INFO L290 TraceCheckUtils]: 1: Hoare triple {40#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_#t~ret10#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0);assume { :begin_inline___ieee754_logf } true;__ieee754_logf_#in~x#1 := main_~x~0#1;havoc __ieee754_logf_#res#1;havoc __ieee754_logf_#t~mem4#1, __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset, __ieee754_logf_#t~mem5#1, __ieee754_logf_~#gf_u~1#1.base, __ieee754_logf_~#gf_u~1#1.offset, __ieee754_logf_#t~mem7#1, __ieee754_logf_~#sf_u~0#1.base, __ieee754_logf_~#sf_u~0#1.offset, __ieee754_logf_~x#1, __ieee754_logf_~hfsq~0#1, __ieee754_logf_~f~0#1, __ieee754_logf_~s~0#1, __ieee754_logf_~z~0#1, __ieee754_logf_~R~0#1, __ieee754_logf_~w~0#1, __ieee754_logf_~t1~0#1, __ieee754_logf_~t2~0#1, __ieee754_logf_~dk~0#1, __ieee754_logf_~k~0#1, __ieee754_logf_~ix~0#1, __ieee754_logf_~i~0#1, __ieee754_logf_~j~0#1, __ieee754_logf_#t~nondet6#1;__ieee754_logf_~x#1 := __ieee754_logf_#in~x#1;havoc __ieee754_logf_~hfsq~0#1;havoc __ieee754_logf_~f~0#1;havoc __ieee754_logf_~s~0#1;havoc __ieee754_logf_~z~0#1;havoc __ieee754_logf_~R~0#1;havoc __ieee754_logf_~w~0#1;havoc __ieee754_logf_~t1~0#1;havoc __ieee754_logf_~t2~0#1;havoc __ieee754_logf_~dk~0#1;havoc __ieee754_logf_~k~0#1;havoc __ieee754_logf_~ix~0#1;havoc __ieee754_logf_~i~0#1;havoc __ieee754_logf_~j~0#1; {40#true} is VALID [2022-02-20 16:44:41,144 INFO L290 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2022-02-20 16:44:41,145 INFO L290 TraceCheckUtils]: 3: Hoare triple {41#false} __ieee754_logf_~k~0#1 := 0; {41#false} is VALID [2022-02-20 16:44:41,145 INFO L290 TraceCheckUtils]: 4: Hoare triple {41#false} assume 0 == (if 0 == __ieee754_logf_~ix~0#1 then 0 else (if 1 == __ieee754_logf_~ix~0#1 then 1 else ~bitwiseAnd(__ieee754_logf_~ix~0#1, 2147483647)));__ieee754_logf_#res#1 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(~two25_log~0), ~zero_log~0); {41#false} is VALID [2022-02-20 16:44:41,145 INFO L290 TraceCheckUtils]: 5: Hoare triple {41#false} main_#t~ret9#1 := __ieee754_logf_#res#1;assume { :end_inline___ieee754_logf } true;main_~res~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem8#1, isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {41#false} is VALID [2022-02-20 16:44:41,145 INFO L290 TraceCheckUtils]: 6: Hoare triple {41#false} assume !true; {41#false} is VALID [2022-02-20 16:44:41,146 INFO L290 TraceCheckUtils]: 7: Hoare triple {41#false} isinf_float_~ix~1#1 := (if 0 == isinf_float_~ix~1#1 then 0 else (if 1 == isinf_float_~ix~1#1 then 1 else ~bitwiseAnd(isinf_float_~ix~1#1, 2147483647)));isinf_float_#res#1 := (if 2139095040 == isinf_float_~ix~1#1 then 1 else 0); {41#false} is VALID [2022-02-20 16:44:41,147 INFO L290 TraceCheckUtils]: 8: Hoare triple {41#false} main_#t~ret10#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true;assume -2147483648 <= main_#t~ret10#1 && main_#t~ret10#1 <= 2147483647; {41#false} is VALID [2022-02-20 16:44:41,147 INFO L290 TraceCheckUtils]: 9: Hoare triple {41#false} assume 0 == main_#t~ret10#1;havoc main_#t~ret10#1; {41#false} is VALID [2022-02-20 16:44:41,147 INFO L290 TraceCheckUtils]: 10: Hoare triple {41#false} assume !false; {41#false} is VALID [2022-02-20 16:44:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:44:41,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:44:41,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722737479] [2022-02-20 16:44:41,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722737479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:44:41,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:44:41,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:44:41,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102094010] [2022-02-20 16:44:41,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:44:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:44:41,156 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:44:41,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:44:41,178 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:44:41,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:44:41,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:44:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:44:41,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:44:41,201 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 36 states have internal predecessors, (60), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:44:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:41,260 INFO L93 Difference]: Finished difference Result 72 states and 118 transitions. [2022-02-20 16:44:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:44:41,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:44:41,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:44:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:44:41,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2022-02-20 16:44:41,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:44:41,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2022-02-20 16:44:41,268 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 118 transitions. [2022-02-20 16:44:41,357 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 118 edges. 118 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:44:41,364 INFO L225 Difference]: With dead ends: 72 [2022-02-20 16:44:41,370 INFO L226 Difference]: Without dead ends: 34 [2022-02-20 16:44:41,373 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 [2022-02-20 16:44:41,375 INFO L933 BasicCegarLoop]: 49 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, 49 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 [2022-02-20 16:44:41,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:44:41,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-02-20 16:44:41,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-02-20 16:44:41,394 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:44:41,394 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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) [2022-02-20 16:44:41,395 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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) [2022-02-20 16:44:41,395 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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) [2022-02-20 16:44:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:41,398 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-02-20 16:44:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-02-20 16:44:41,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:44:41,398 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:44:41,399 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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 34 states. [2022-02-20 16:44:41,399 INFO L87 Difference]: Start difference. First operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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 34 states. [2022-02-20 16:44:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:41,401 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-02-20 16:44:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-02-20 16:44:41,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:44:41,401 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:44:41,401 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:44:41,402 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:44:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.393939393939394) internal successors, (46), 33 states have internal predecessors, (46), 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) [2022-02-20 16:44:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2022-02-20 16:44:41,404 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 11 [2022-02-20 16:44:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:44:41,405 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2022-02-20 16:44:41,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:44:41,405 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-02-20 16:44:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:44:41,405 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:44:41,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:44:41,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:44:41,406 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:44:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:44:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1735961236, now seen corresponding path program 1 times [2022-02-20 16:44:41,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:44:41,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036458233] [2022-02-20 16:44:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:44:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:44:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:44:41,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:44:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:44:41,522 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:44:41,522 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:44:41,528 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:44:41,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:44:41,532 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:44:41,533 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:44:41,562 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L26-3 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L96 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L103-2 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L103-2 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L103-1 has no Hoare annotation [2022-02-20 16:44:41,563 WARN L170 areAnnotationChecker]: L103-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L103-3 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L109 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L126 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:44:41,564 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:44:41,565 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:44:41,565 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:44:41,565 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:44:41,565 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2022-02-20 16:44:41,580 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L50-6 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L50-6 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:44:41,581 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2022-02-20 16:44:41,582 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2022-02-20 16:44:41,583 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2022-02-20 16:44:41,583 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2022-02-20 16:44:41,583 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2022-02-20 16:44:41,583 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:44:41,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:44:41 BoogieIcfgContainer [2022-02-20 16:44:41,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:44:41,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:44:41,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:44:41,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:44:41,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:40" (3/4) ... [2022-02-20 16:44:41,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:44:41,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:44:41,590 INFO L158 Benchmark]: Toolchain (without parser) took 1442.92ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 73.9MB in the beginning and 100.9MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:44:41,590 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:44:41,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.06ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 75.5MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:44:41,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.10ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 72.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:44:41,595 INFO L158 Benchmark]: Boogie Preprocessor took 45.39ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:44:41,595 INFO L158 Benchmark]: RCFGBuilder took 413.34ms. Allocated memory is still 102.8MB. Free memory was 70.6MB in the beginning and 52.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-20 16:44:41,596 INFO L158 Benchmark]: TraceAbstraction took 660.24ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 52.1MB in the beginning and 100.9MB in the end (delta: -48.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-02-20 16:44:41,596 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 125.8MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:44:41,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.06ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 75.5MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.10ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 72.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.39ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.34ms. Allocated memory is still 102.8MB. Free memory was 70.6MB in the beginning and 52.5MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 660.24ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 52.1MB in the beginning and 100.9MB in the end (delta: -48.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 125.8MB. Free memory is still 100.9MB. 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: 123]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 34, overapproximation of bitwiseAnd at line 108. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L118] float x = 1.0f / 0.0f; [L119] CALL, EXPR __ieee754_logf(x) [L23] float hfsq, f, s, z, R, w, t1, t2, dk; [L24] __int32_t k, ix, i, j; VAL [\old(x)=8589934592, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=8589934592, zero_log=0] [L27] ieee_float_shape_type gf_u; [L28] gf_u.value = (x) [L29] EXPR gf_u.word [L29] (ix) = gf_u.word [L32] k = 0 VAL [\old(x)=8589934592, ix=-2, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=8589934592, zero_log=0] [L33] COND TRUE ((ix & 0x7fffffff) == 0) [L34] return -two25_log / zero_log; VAL [\old(x)=8589934592, ix=-2, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=8589934592, zero_log=0] [L119] RET, EXPR __ieee754_logf(x) [L119] float res = __ieee754_logf(x); [L122] CALL, EXPR isinf_float(res) [L102] __int32_t ix; VAL [\old(x)=8589934591, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=8589934591, zero_log=0] [L104] ieee_float_shape_type gf_u; [L105] gf_u.value = (x) [L106] EXPR gf_u.word [L106] (ix) = gf_u.word [L108] ix &= 0x7fffffff [L109] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934591, \result=0, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=8589934591, zero_log=0] [L122] RET, EXPR isinf_float(res) [L122] COND TRUE !isinf_float(res) [L123] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=8589934591, two25_log=33554432, x=8589934592, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, 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, 49 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, 49 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=37occurred 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, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2022-02-20 16:44:41,633 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 -ea -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_0931.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 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:44:43,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:44:43,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:44:43,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:44:43,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:44:43,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:44:43,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:44:43,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:44:43,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:44:43,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:44:43,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:44:43,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:44:43,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:44:43,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:44:43,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:44:43,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:44:43,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:44:43,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:44:43,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:44:43,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:44:43,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:44:43,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:44:43,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:44:43,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:44:43,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:44:43,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:44:43,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:44:43,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:44:43,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:44:43,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:44:43,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:44:43,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:44:43,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:44:43,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:44:43,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:44:43,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:44:43,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:44:43,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:44:43,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:44:43,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:44:43,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:44:43,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:44:43,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:44:43,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:44:43,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:44:43,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:44:43,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:44:43,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:44:43,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:44:43,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:44:43,404 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:44:43,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:44:43,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:44:43,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:44:43,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:44:43,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:44:43,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:44:43,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:44:43,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:44:43,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:44:43,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:44:43,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:44:43,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:43,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:44:43,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:44:43,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:44:43,413 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:44:43,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:44:43,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:44:43,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:44:43,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:44:43,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:44:43,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 [2022-02-20 16:44:43,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:44:43,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:44:43,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:44:43,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:44:43,704 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:44:43,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2022-02-20 16:44:43,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f154e1a/8423b14d7ea74bfb9f2fc27d2edaa997/FLAGd97f4b65d [2022-02-20 16:44:44,119 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:44:44,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2022-02-20 16:44:44,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f154e1a/8423b14d7ea74bfb9f2fc27d2edaa997/FLAGd97f4b65d [2022-02-20 16:44:44,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f154e1a/8423b14d7ea74bfb9f2fc27d2edaa997 [2022-02-20 16:44:44,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:44:44,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:44:44,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:44,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:44:44,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:44:44,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ce76f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44, skipping insertion in model container [2022-02-20 16:44:44,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:44:44,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:44:44,374 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_0931.c[3146,3159] [2022-02-20 16:44:44,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:44,399 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:44:44,437 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_0931.c[3146,3159] [2022-02-20 16:44:44,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:44,448 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:44:44,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44 WrapperNode [2022-02-20 16:44:44,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:44,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:44,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:44:44,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:44:44,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,507 INFO L137 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2022-02-20 16:44:44,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:44,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:44:44,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:44:44,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:44:44,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:44:44,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:44:44,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:44:44,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:44:44,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (1/1) ... [2022-02-20 16:44:44,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:44:44,578 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) [2022-02-20 16:44:44,582 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 [2022-02-20 16:44:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:44:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:44:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:44:44,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:44:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:44:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:44:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:44:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:44:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:44:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:44:44,666 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:44:44,668 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:44:59,873 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:44:59,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:44:59,878 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-02-20 16:44:59,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:59 BoogieIcfgContainer [2022-02-20 16:44:59,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:44:59,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:44:59,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:44:59,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:44:59,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:44:44" (1/3) ... [2022-02-20 16:44:59,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b4df62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:59, skipping insertion in model container [2022-02-20 16:44:59,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:44" (2/3) ... [2022-02-20 16:44:59,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b4df62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:59, skipping insertion in model container [2022-02-20 16:44:59,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:59" (3/3) ... [2022-02-20 16:44:59,886 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931.c [2022-02-20 16:44:59,891 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:44:59,891 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:44:59,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:44:59,922 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 [2022-02-20 16:44:59,922 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:44:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2022-02-20 16:44:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:44:59,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:44:59,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:44:59,935 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:44:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:44:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash -179144357, now seen corresponding path program 1 times [2022-02-20 16:44:59,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:44:59,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972468094] [2022-02-20 16:44:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:44:59,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:44:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:44:59,950 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) [2022-02-20 16:44:59,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:45:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:00,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:45:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:00,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:00,436 INFO L290 TraceCheckUtils]: 0: Hoare triple {36#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {36#true} is VALID [2022-02-20 16:45:00,437 INFO L290 TraceCheckUtils]: 1: Hoare triple {36#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_logf } true;__ieee754_logf_#in~x#1 := main_~x~0#1;havoc __ieee754_logf_#res#1;havoc __ieee754_logf_#t~mem4#1, __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset, __ieee754_logf_#t~mem5#1, __ieee754_logf_~#gf_u~1#1.base, __ieee754_logf_~#gf_u~1#1.offset, __ieee754_logf_#t~mem6#1, __ieee754_logf_~#sf_u~0#1.base, __ieee754_logf_~#sf_u~0#1.offset, __ieee754_logf_~x#1, __ieee754_logf_~hfsq~0#1, __ieee754_logf_~f~0#1, __ieee754_logf_~s~0#1, __ieee754_logf_~z~0#1, __ieee754_logf_~R~0#1, __ieee754_logf_~w~0#1, __ieee754_logf_~t1~0#1, __ieee754_logf_~t2~0#1, __ieee754_logf_~dk~0#1, __ieee754_logf_~k~0#1, __ieee754_logf_~ix~0#1, __ieee754_logf_~i~0#1, __ieee754_logf_~j~0#1;__ieee754_logf_~x#1 := __ieee754_logf_#in~x#1;havoc __ieee754_logf_~hfsq~0#1;havoc __ieee754_logf_~f~0#1;havoc __ieee754_logf_~s~0#1;havoc __ieee754_logf_~z~0#1;havoc __ieee754_logf_~R~0#1;havoc __ieee754_logf_~w~0#1;havoc __ieee754_logf_~t1~0#1;havoc __ieee754_logf_~t2~0#1;havoc __ieee754_logf_~dk~0#1;havoc __ieee754_logf_~k~0#1;havoc __ieee754_logf_~ix~0#1;havoc __ieee754_logf_~i~0#1;havoc __ieee754_logf_~j~0#1; {36#true} is VALID [2022-02-20 16:45:00,438 INFO L290 TraceCheckUtils]: 2: Hoare triple {36#true} assume !true; {37#false} is VALID [2022-02-20 16:45:00,439 INFO L290 TraceCheckUtils]: 3: Hoare triple {37#false} __ieee754_logf_~k~0#1 := 0bv32; {37#false} is VALID [2022-02-20 16:45:00,439 INFO L290 TraceCheckUtils]: 4: Hoare triple {37#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~0#1);__ieee754_logf_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {37#false} is VALID [2022-02-20 16:45:00,439 INFO L290 TraceCheckUtils]: 5: Hoare triple {37#false} main_#t~ret8#1 := __ieee754_logf_#res#1;assume { :end_inline___ieee754_logf } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem7#1, isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {37#false} is VALID [2022-02-20 16:45:00,440 INFO L290 TraceCheckUtils]: 6: Hoare triple {37#false} assume !true; {37#false} is VALID [2022-02-20 16:45:00,440 INFO L290 TraceCheckUtils]: 7: Hoare triple {37#false} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {37#false} is VALID [2022-02-20 16:45:00,441 INFO L290 TraceCheckUtils]: 8: Hoare triple {37#false} main_#t~ret9#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {37#false} is VALID [2022-02-20 16:45:00,441 INFO L290 TraceCheckUtils]: 9: Hoare triple {37#false} assume 0bv32 == main_#t~ret9#1;havoc main_#t~ret9#1; {37#false} is VALID [2022-02-20 16:45:00,441 INFO L290 TraceCheckUtils]: 10: Hoare triple {37#false} assume !false; {37#false} is VALID [2022-02-20 16:45:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:00,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:00,445 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:00,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972468094] [2022-02-20 16:45:00,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972468094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:00,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:00,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:00,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22100937] [2022-02-20 16:45:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:45:00,452 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:00,454 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:45:00,577 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:00,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:00,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:00,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:00,592 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:45:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:14,416 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2022-02-20 16:45:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:14,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2022-02-20 16:45:14,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:45:14,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 102 transitions. [2022-02-20 16:45:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:45:14,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 102 transitions. [2022-02-20 16:45:14,423 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 102 transitions. [2022-02-20 16:45:17,565 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:17,570 INFO L225 Difference]: With dead ends: 64 [2022-02-20 16:45:17,570 INFO L226 Difference]: Without dead ends: 30 [2022-02-20 16:45:17,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:17,575 INFO L933 BasicCegarLoop]: 43 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, 43 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 [2022-02-20 16:45:17,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-20 16:45:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-02-20 16:45:17,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:17,600 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2022-02-20 16:45:17,601 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2022-02-20 16:45:17,602 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2022-02-20 16:45:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:17,607 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-02-20 16:45:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2022-02-20 16:45:17,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:17,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:17,608 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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 30 states. [2022-02-20 16:45:17,608 INFO L87 Difference]: Start difference. First operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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 30 states. [2022-02-20 16:45:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:17,613 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-02-20 16:45:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2022-02-20 16:45:17,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:17,614 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:17,615 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:17,615 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2022-02-20 16:45:17,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2022-02-20 16:45:17,621 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 11 [2022-02-20 16:45:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:17,622 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2022-02-20 16:45:17,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-20 16:45:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2022-02-20 16:45:17,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:45:17,623 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:17,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:17,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:45:17,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:45:17,835 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash 574087680, now seen corresponding path program 1 times [2022-02-20 16:45:17,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:17,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329039795] [2022-02-20 16:45:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:17,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:17,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:17,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:17,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:45:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:18,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-20 16:45:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:18,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:18,560 INFO L290 TraceCheckUtils]: 0: Hoare triple {244#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {244#true} is VALID [2022-02-20 16:45:18,562 INFO L290 TraceCheckUtils]: 1: Hoare triple {244#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_logf } true;__ieee754_logf_#in~x#1 := main_~x~0#1;havoc __ieee754_logf_#res#1;havoc __ieee754_logf_#t~mem4#1, __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset, __ieee754_logf_#t~mem5#1, __ieee754_logf_~#gf_u~1#1.base, __ieee754_logf_~#gf_u~1#1.offset, __ieee754_logf_#t~mem6#1, __ieee754_logf_~#sf_u~0#1.base, __ieee754_logf_~#sf_u~0#1.offset, __ieee754_logf_~x#1, __ieee754_logf_~hfsq~0#1, __ieee754_logf_~f~0#1, __ieee754_logf_~s~0#1, __ieee754_logf_~z~0#1, __ieee754_logf_~R~0#1, __ieee754_logf_~w~0#1, __ieee754_logf_~t1~0#1, __ieee754_logf_~t2~0#1, __ieee754_logf_~dk~0#1, __ieee754_logf_~k~0#1, __ieee754_logf_~ix~0#1, __ieee754_logf_~i~0#1, __ieee754_logf_~j~0#1;__ieee754_logf_~x#1 := __ieee754_logf_#in~x#1;havoc __ieee754_logf_~hfsq~0#1;havoc __ieee754_logf_~f~0#1;havoc __ieee754_logf_~s~0#1;havoc __ieee754_logf_~z~0#1;havoc __ieee754_logf_~R~0#1;havoc __ieee754_logf_~w~0#1;havoc __ieee754_logf_~t1~0#1;havoc __ieee754_logf_~t2~0#1;havoc __ieee754_logf_~dk~0#1;havoc __ieee754_logf_~k~0#1;havoc __ieee754_logf_~ix~0#1;havoc __ieee754_logf_~i~0#1;havoc __ieee754_logf_~j~0#1; {252#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_logf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} is VALID [2022-02-20 16:45:18,569 INFO L290 TraceCheckUtils]: 2: Hoare triple {252#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_logf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))} call __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_logf_~x#1, __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset, 4bv32);call __ieee754_logf_#t~mem4#1 := read~intINTTYPE4(__ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset, 4bv32);__ieee754_logf_~ix~0#1 := __ieee754_logf_#t~mem4#1;havoc __ieee754_logf_#t~mem4#1;call ULTIMATE.dealloc(__ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset);havoc __ieee754_logf_~#gf_u~0#1.base, __ieee754_logf_~#gf_u~0#1.offset; {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} is VALID [2022-02-20 16:45:18,571 INFO L290 TraceCheckUtils]: 3: Hoare triple {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} goto; {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} is VALID [2022-02-20 16:45:18,572 INFO L290 TraceCheckUtils]: 4: Hoare triple {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} __ieee754_logf_~k~0#1 := 0bv32; {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} is VALID [2022-02-20 16:45:18,693 INFO L290 TraceCheckUtils]: 5: Hoare triple {256#(exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_logf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_logf_~ix~0#1|))))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_logf_~ix~0#1);__ieee754_logf_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log~0), ~zero_log~0); {245#false} is VALID [2022-02-20 16:45:18,693 INFO L290 TraceCheckUtils]: 6: Hoare triple {245#false} main_#t~ret8#1 := __ieee754_logf_#res#1;assume { :end_inline___ieee754_logf } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem7#1, isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {245#false} is VALID [2022-02-20 16:45:18,693 INFO L290 TraceCheckUtils]: 7: Hoare triple {245#false} call isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x#1, isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset, 4bv32);call isinf_float_#t~mem7#1 := read~intINTTYPE4(isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset, 4bv32);isinf_float_~ix~1#1 := isinf_float_#t~mem7#1;havoc isinf_float_#t~mem7#1;call ULTIMATE.dealloc(isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset);havoc isinf_float_~#gf_u~2#1.base, isinf_float_~#gf_u~2#1.offset; {245#false} is VALID [2022-02-20 16:45:18,693 INFO L290 TraceCheckUtils]: 8: Hoare triple {245#false} goto; {245#false} is VALID [2022-02-20 16:45:18,694 INFO L290 TraceCheckUtils]: 9: Hoare triple {245#false} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {245#false} is VALID [2022-02-20 16:45:18,694 INFO L290 TraceCheckUtils]: 10: Hoare triple {245#false} main_#t~ret9#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {245#false} is VALID [2022-02-20 16:45:18,694 INFO L290 TraceCheckUtils]: 11: Hoare triple {245#false} assume 0bv32 == main_#t~ret9#1;havoc main_#t~ret9#1; {245#false} is VALID [2022-02-20 16:45:18,694 INFO L290 TraceCheckUtils]: 12: Hoare triple {245#false} assume !false; {245#false} is VALID [2022-02-20 16:45:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:18,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:18,694 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:18,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329039795] [2022-02-20 16:45:18,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329039795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:18,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:18,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:45:18,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619874010] [2022-02-20 16:45:18,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:18,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2022-02-20 16:45:18,696 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:18,696 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-02-20 16:45:18,836 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:18,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:45:18,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:18,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:45:18,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:45:18,837 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-02-20 16:45:58,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:58,971 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2022-02-20 16:45:58,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:45:58,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2022-02-20 16:45:58,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-02-20 16:45:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-02-20 16:45:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-02-20 16:45:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-02-20 16:45:58,973 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 47 transitions. [2022-02-20 16:46:00,599 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:46:00,600 INFO L225 Difference]: With dead ends: 38 [2022-02-20 16:46:00,600 INFO L226 Difference]: Without dead ends: 30 [2022-02-20 16:46:00,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:46:00,601 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:46:00,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-02-20 16:46:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-20 16:46:00,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-02-20 16:46:00,604 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:46:00,604 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2022-02-20 16:46:00,604 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2022-02-20 16:46:00,605 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2022-02-20 16:46:00,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:00,606 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-02-20 16:46:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-02-20 16:46:00,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:00,606 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:00,607 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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 30 states. [2022-02-20 16:46:00,607 INFO L87 Difference]: Start difference. First operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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 30 states. [2022-02-20 16:46:00,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:00,608 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-02-20 16:46:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-02-20 16:46:00,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:00,609 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:00,609 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:46:00,609 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:46:00,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2022-02-20 16:46:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-02-20 16:46:00,610 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 13 [2022-02-20 16:46:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:46:00,610 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-02-20 16:46:00,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-02-20 16:46:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-02-20 16:46:00,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-20 16:46:00,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:46:00,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:46:00,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0