./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.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 e3677de697f2e465cd606b8f0d05818e7deafda1 .................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.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 e3677de697f2e465cd606b8f0d05818e7deafda1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:34:28,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:34:28,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:34:28,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:34:28,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:34:28,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:34:28,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:34:28,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:34:28,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:34:28,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:34:28,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:34:28,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:34:28,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:34:28,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:34:28,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:34:28,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:34:28,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:34:28,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:34:28,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:34:28,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:34:28,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:34:28,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:34:28,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:34:28,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:34:29,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:34:29,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:34:29,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:34:29,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:34:29,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:34:29,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:34:29,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:34:29,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:34:29,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:34:29,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:34:29,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:34:29,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:34:29,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:34:29,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:34:29,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:34:29,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:34:29,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:34:29,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:34:29,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:34:29,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:34:29,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:34:29,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:34:29,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:34:29,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:34:29,055 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:34:29,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:34:29,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:34:29,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:34:29,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:34:29,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:34:29,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:34:29,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:34:29,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:34:29,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:34:29,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:34:29,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:34:29,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:34:29,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:34:29,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:34:29,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:34:29,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:29,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:34:29,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:34:29,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:34:29,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:34:29,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:34:29,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:34:29,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:34:29,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2021-08-26 01:34:29,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:34:29,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:34:29,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:34:29,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:34:29,423 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:34:29,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-08-26 01:34:29,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cca52891/200eeec4ab5c487ab028a32a91a25251/FLAG6269662f0 [2021-08-26 01:34:30,008 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:34:30,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-08-26 01:34:30,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cca52891/200eeec4ab5c487ab028a32a91a25251/FLAG6269662f0 [2021-08-26 01:34:30,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cca52891/200eeec4ab5c487ab028a32a91a25251 [2021-08-26 01:34:30,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:34:30,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:34:30,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:30,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:34:30,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:34:30,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660cd2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30, skipping insertion in model container [2021-08-26 01:34:30,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:34:30,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:34:30,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-08-26 01:34:30,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:30,721 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:34:30,777 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-08-26 01:34:30,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:30,794 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:34:30,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30 WrapperNode [2021-08-26 01:34:30,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:30,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:30,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:34:30,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:34:30,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:30,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:34:30,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:34:30,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:34:30,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:34:30,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:34:30,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:34:30,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:34:30,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (1/1) ... [2021-08-26 01:34:30,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:30,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:34:30,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:34:30,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:34:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:34:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:34:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:34:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:34:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:34:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:34:30,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:34:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:34:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-26 01:34:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:34:31,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:34:31,543 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-08-26 01:34:31,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:31 BoogieIcfgContainer [2021-08-26 01:34:31,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:34:31,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:34:31,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:34:31,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:34:31,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:34:30" (1/3) ... [2021-08-26 01:34:31,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580fd79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:31, skipping insertion in model container [2021-08-26 01:34:31,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:30" (2/3) ... [2021-08-26 01:34:31,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580fd79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:31, skipping insertion in model container [2021-08-26 01:34:31,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:31" (3/3) ... [2021-08-26 01:34:31,553 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-08-26 01:34:31,557 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:34:31,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:34:31,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:34:31,623 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:34:31,623 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:34:31,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:34:31,642 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:31,643 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:31,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:31,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:31,653 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-08-26 01:34:31,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:34:31,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367174704] [2021-08-26 01:34:31,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:31,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:34:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:31,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:34:31,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367174704] [2021-08-26 01:34:31,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367174704] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:31,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:31,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:34:31,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97140244] [2021-08-26 01:34:31,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:34:31,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:34:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:34:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:31,874 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-08-26 01:34:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:31,898 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-08-26 01:34:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:34:31,899 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 [2021-08-26 01:34:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:31,906 INFO L225 Difference]: With dead ends: 79 [2021-08-26 01:34:31,907 INFO L226 Difference]: Without dead ends: 37 [2021-08-26 01:34:31,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-26 01:34:31,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-08-26 01:34:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-08-26 01:34:31,943 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-08-26 01:34:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:31,944 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-08-26 01:34:31,945 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) [2021-08-26 01:34:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-08-26 01:34:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:34:31,947 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:31,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:31,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:34:31,948 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:31,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:31,950 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-08-26 01:34:31,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:34:31,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432969988] [2021-08-26 01:34:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:31,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:34:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:34:32,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:34:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:34:32,084 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:34:32,085 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:34:32,086 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:34:32,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:34:32,092 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:34:32,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:34:32 BoogieIcfgContainer [2021-08-26 01:34:32,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:34:32,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:34:32,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:34:32,122 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:34:32,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:31" (3/4) ... [2021-08-26 01:34:32,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:34:32,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:34:32,127 INFO L168 Benchmark]: Toolchain (without parser) took 1647.24 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.2 MB in the beginning and 45.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:32,127 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:32,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.12 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 38.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:32,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.83 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 36.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:32,129 INFO L168 Benchmark]: Boogie Preprocessor took 51.13 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 35.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:32,129 INFO L168 Benchmark]: RCFGBuilder took 637.41 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 36.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:32,130 INFO L168 Benchmark]: TraceAbstraction took 574.20 ms. Allocated memory is still 71.3 MB. Free memory was 36.3 MB in the beginning and 46.2 MB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:34:32,130 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 71.3 MB. Free memory was 46.1 MB in the beginning and 45.7 MB in the end (delta: 393.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:34:32,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.12 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 38.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.83 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 36.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.13 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 35.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 637.41 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 36.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 574.20 ms. Allocated memory is still 71.3 MB. Free memory was 36.3 MB in the beginning and 46.2 MB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 71.3 MB. Free memory was 46.1 MB in the beginning and 45.7 MB in the end (delta: 393.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L147] reach_error() VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 476.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.4ms, AutomataDifference: 48.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.5ms SsaConstructionTime, 102.9ms SatisfiabilityAnalysisTime, 78.4ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 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 [2021-08-26 01:34:32,176 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:34:34,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:34:34,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:34:34,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:34:34,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:34:34,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:34:34,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:34:34,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:34:34,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:34:34,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:34:34,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:34:34,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:34:34,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:34:34,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:34:34,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:34:34,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:34:34,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:34:34,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:34:34,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:34:34,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:34:34,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:34:34,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:34:34,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:34:34,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:34:34,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:34:34,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:34:34,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:34:34,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:34:34,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:34:34,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:34:34,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:34:34,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:34:34,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:34:34,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:34:34,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:34:34,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:34:34,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:34:34,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:34:34,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:34:34,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:34:34,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:34:34,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:34:34,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:34:34,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:34:34,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:34:34,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:34:34,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:34:34,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:34:34,158 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:34:34,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:34:34,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:34:34,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:34:34,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:34:34,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:34:34,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:34:34,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:34:34,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:34:34,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:34:34,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:34:34,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:34:34,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:34,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:34:34,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:34:34,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:34:34,162 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:34:34,162 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:34:34,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:34:34,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:34:34,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:34:34,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2021-08-26 01:34:34,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:34:34,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:34:34,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:34:34,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:34:34,509 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:34:34,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-08-26 01:34:34,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d30e5e22/ea6fd6fb0b06401d921c020c76c813ed/FLAG44bbda6d3 [2021-08-26 01:34:35,030 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:34:35,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-08-26 01:34:35,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d30e5e22/ea6fd6fb0b06401d921c020c76c813ed/FLAG44bbda6d3 [2021-08-26 01:34:35,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d30e5e22/ea6fd6fb0b06401d921c020c76c813ed [2021-08-26 01:34:35,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:34:35,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:34:35,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:35,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:34:35,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:34:35,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f399ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35, skipping insertion in model container [2021-08-26 01:34:35,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:34:35,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:34:35,681 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-08-26 01:34:35,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:35,703 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:34:35,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-08-26 01:34:35,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:34:35,789 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:34:35,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35 WrapperNode [2021-08-26 01:34:35,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:34:35,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:35,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:34:35,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:34:35,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:34:35,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:34:35,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:34:35,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:34:35,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:34:35,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:34:35,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:34:35,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:34:35,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (1/1) ... [2021-08-26 01:34:35,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:34:35,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:34:35,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:34:35,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:34:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:34:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:34:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:34:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:34:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:34:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:34:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:34:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:34:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:34:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:34:49,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:34:49,891 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-08-26 01:34:49,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:49 BoogieIcfgContainer [2021-08-26 01:34:49,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:34:49,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:34:49,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:34:49,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:34:49,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:34:35" (1/3) ... [2021-08-26 01:34:49,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cb100b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:49, skipping insertion in model container [2021-08-26 01:34:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:34:35" (2/3) ... [2021-08-26 01:34:49,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cb100b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:34:49, skipping insertion in model container [2021-08-26 01:34:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:49" (3/3) ... [2021-08-26 01:34:49,900 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-08-26 01:34:49,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:34:49,905 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:34:49,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:34:49,948 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:34:49,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:34:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:34:49,976 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:49,976 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:49,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:49,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:49,986 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-08-26 01:34:49,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:34:49,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2290407] [2021-08-26 01:34:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:49,999 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:34:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:34:50,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:34:50,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:34:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:50,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:34:50,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:50,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:50,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:34:50,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2290407] [2021-08-26 01:34:50,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2290407] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:50,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:50,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:34:50,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935493691] [2021-08-26 01:34:50,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:34:50,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:34:50,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:34:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:50,909 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-08-26 01:34:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:34:50,924 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-08-26 01:34:50,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:34:50,925 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 [2021-08-26 01:34:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:34:50,932 INFO L225 Difference]: With dead ends: 79 [2021-08-26 01:34:50,933 INFO L226 Difference]: Without dead ends: 37 [2021-08-26 01:34:50,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:34:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-26 01:34:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-08-26 01:34:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:34:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-08-26 01:34:50,959 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-08-26 01:34:50,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:34:50,960 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-08-26 01:34:50,960 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) [2021-08-26 01:34:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-08-26 01:34:50,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:34:50,961 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:34:50,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:34:50,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:34:51,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:34:51,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:34:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:34:51,167 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-08-26 01:34:51,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:34:51,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472529682] [2021-08-26 01:34:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:34:51,168 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:34:51,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:34:51,169 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) [2021-08-26 01:34:51,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:34:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:34:51,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:34:51,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:34:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:52,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:34:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:34:53,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:34:53,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472529682] [2021-08-26 01:34:53,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472529682] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:34:53,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:34:53,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-26 01:34:53,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530097848] [2021-08-26 01:34:53,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 01:34:53,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:34:53,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 01:34:53,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-26 01:34:53,664 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:35:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:35:04,975 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2021-08-26 01:35:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 01:35:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:35:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:35:05,473 INFO L225 Difference]: With dead ends: 61 [2021-08-26 01:35:05,473 INFO L226 Difference]: Without dead ends: 31 [2021-08-26 01:35:05,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1492.1ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:35:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-26 01:35:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-08-26 01:35:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:35:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-08-26 01:35:05,478 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2021-08-26 01:35:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:35:05,478 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-08-26 01:35:05,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:35:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-08-26 01:35:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:35:05,479 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:35:05,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:35:05,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-26 01:35:05,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:35:05,686 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:35:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:35:05,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2021-08-26 01:35:05,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:35:05,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132093192] [2021-08-26 01:35:05,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:35:05,687 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:35:05,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:35:05,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:35:05,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:35:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:35:05,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:35:05,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:35:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:35:09,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:35:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:35:23,808 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:35:23,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132093192] [2021-08-26 01:35:23,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132093192] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:35:23,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:35:23,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-26 01:35:23,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968397729] [2021-08-26 01:35:23,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:35:23,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:35:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:35:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:35:23,811 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:36:06,764 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-08-26 01:36:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 01:36:06,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-26 01:36:06,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:36:06,766 INFO L225 Difference]: With dead ends: 31 [2021-08-26 01:36:06,766 INFO L226 Difference]: Without dead ends: 27 [2021-08-26 01:36:06,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 11366.9ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-08-26 01:36:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-26 01:36:06,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-26 01:36:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-08-26 01:36:06,771 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2021-08-26 01:36:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:36:06,771 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-08-26 01:36:06,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:06,771 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-08-26 01:36:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-26 01:36:06,771 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:36:06,771 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:36:06,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:06,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:36:06,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:36:06,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:36:06,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2021-08-26 01:36:06,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:36:06,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156759736] [2021-08-26 01:36:06,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:36:06,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:36:06,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:36:06,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:36:06,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 01:36:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:36:09,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 01:36:09,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:36:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:11,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:36:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:19,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:36:19,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156759736] [2021-08-26 01:36:19,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156759736] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:36:19,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:36:19,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-26 01:36:19,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996600813] [2021-08-26 01:36:19,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 01:36:19,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:36:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 01:36:19,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 01:36:19,491 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:36:19,983 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-08-26 01:36:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 01:36:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 15 [2021-08-26 01:36:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:36:19,986 INFO L225 Difference]: With dead ends: 27 [2021-08-26 01:36:19,986 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 01:36:19,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3177.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 01:36:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 01:36:19,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 01:36:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:19,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 01:36:19,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-08-26 01:36:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:36:19,987 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 01:36:19,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 01:36:19,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 01:36:19,989 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:36:20,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:20,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:36:20,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 01:36:20,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:20,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:20,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:20,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:20,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:20,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-08-26 01:36:21,022 INFO L853 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 01:36:21,022 INFO L860 garLoopResultBuilder]: At program point L152(lines 133 153) the Hoare annotation is: true [2021-08-26 01:36:21,022 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-26 01:36:21,023 INFO L857 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-08-26 01:36:21,023 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-08-26 01:36:21,023 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-08-26 01:36:21,023 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-08-26 01:36:21,023 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-08-26 01:36:21,023 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-08-26 01:36:21,024 INFO L857 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-08-26 01:36:21,024 INFO L853 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-08-26 01:36:21,024 INFO L853 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-08-26 01:36:21,024 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-08-26 01:36:21,024 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-08-26 01:36:21,025 INFO L857 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-08-26 01:36:21,026 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 150) no Hoare annotation was computed. [2021-08-26 01:36:21,027 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2021-08-26 01:36:21,027 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-08-26 01:36:21,027 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-08-26 01:36:21,027 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-08-26 01:36:21,027 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-08-26 01:36:21,027 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-08-26 01:36:21,028 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-08-26 01:36:21,028 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-08-26 01:36:21,028 INFO L857 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-08-26 01:36:21,031 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:36:21,036 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,043 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,048 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,049 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,049 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,049 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:36:21 BoogieIcfgContainer [2021-08-26 01:36:21,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:36:21,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:36:21,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:36:21,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:36:21,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:34:49" (3/4) ... [2021-08-26 01:36:21,054 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 01:36:21,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-08-26 01:36:21,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-08-26 01:36:21,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:36:21,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:36:21,086 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) [2021-08-26 01:36:21,125 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 01:36:21,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:36:21,127 INFO L168 Benchmark]: Toolchain (without parser) took 105710.42 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 43.2 MB in the beginning and 53.5 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,127 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 43.9 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:36:21,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.69 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 42.3 MB in the end (delta: 667.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.53 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,128 INFO L168 Benchmark]: Boogie Preprocessor took 72.18 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 38.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,128 INFO L168 Benchmark]: RCFGBuilder took 13966.01 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.1 MB in the beginning and 62.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,129 INFO L168 Benchmark]: TraceAbstraction took 91155.14 ms. Allocated memory is still 81.8 MB. Free memory was 61.6 MB in the beginning and 61.9 MB in the end (delta: -238.1 kB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,129 INFO L168 Benchmark]: Witness Printer took 75.21 ms. Allocated memory is still 81.8 MB. Free memory was 61.9 MB in the beginning and 53.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:36:21,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 43.9 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.69 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 42.3 MB in the end (delta: 667.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.53 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.18 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 38.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13966.01 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.1 MB in the beginning and 62.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 91155.14 ms. Allocated memory is still 81.8 MB. Free memory was 61.6 MB in the beginning and 61.9 MB in the end (delta: -238.1 kB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.21 ms. Allocated memory is still 81.8 MB. Free memory was 61.9 MB in the beginning and 53.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 147]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91090.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 55300.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 828.2ms, InitialAbstractionConstructionTime: 8.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 73 SDslu, 148 SDs, 0 SdLazy, 44 SolverSat, 5 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 49553.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 16037.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 46 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 29.2ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 793.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 93.4ms SsaConstructionTime, 3121.8ms SatisfiabilityAnalysisTime, 30448.3ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 578 SizeOfPredicates, 21 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant [2021-08-26 01:36:21,136 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant [2021-08-26 01:36:21,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,137 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,138 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:36:21,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,138 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-08-26 01:36:21,138 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 01:36:21,366 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:36:21,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...