./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_0480.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 5f5e58fe25aaebf796c63bc50448f305eda1695c ........................................................................................................................................................................................................................................................................................................................ 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_0480.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 5f5e58fe25aaebf796c63bc50448f305eda1695c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:57:56,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:57:56,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:57:56,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:57:56,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:57:56,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:57:56,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:57:56,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:57:56,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:57:56,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:57:56,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:57:56,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:57:56,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:57:56,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:57:56,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:57:56,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:57:56,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:57:56,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:57:56,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:57:56,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:57:56,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:57:56,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:57:56,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:57:56,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:57:56,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:57:56,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:57:56,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:57:56,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:57:56,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:57:56,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:57:56,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:57:56,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:57:56,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:57:56,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:57:56,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:57:56,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:57:56,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:57:56,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:57:56,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:57:56,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:57:56,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:57:56,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 07:57:57,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:57:57,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:57:57,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:57:57,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:57:57,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:57:57,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:57:57,021 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:57:57,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:57:57,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:57:57,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 07:57:57,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:57:57,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:57:57,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:57:57,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:57:57,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:57:57,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:57:57,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:57:57,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:57:57,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:57:57,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:57:57,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 07:57:57,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 07:57:57,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:57:57,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:57:57,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f5e58fe25aaebf796c63bc50448f305eda1695c [2021-08-29 07:57:57,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:57:57,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:57:57,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:57:57,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:57:57,373 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:57:57,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-08-29 07:57:57,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9585d1f/4bf22098292f4add905582dabbed82af/FLAG4aaa665b3 [2021-08-29 07:57:57,940 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:57:57,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-08-29 07:57:57,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9585d1f/4bf22098292f4add905582dabbed82af/FLAG4aaa665b3 [2021-08-29 07:57:58,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9585d1f/4bf22098292f4add905582dabbed82af [2021-08-29 07:57:58,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:57:58,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:57:58,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:57:58,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:57:58,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:57:58,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0f11a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58, skipping insertion in model container [2021-08-29 07:57:58,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:57:58,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:57:58,585 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_0480.c[5882,5895] [2021-08-29 07:57:58,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:57:58,594 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:57:58,694 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_0480.c[5882,5895] [2021-08-29 07:57:58,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:57:58,724 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:57:58,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58 WrapperNode [2021-08-29 07:57:58,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:57:58,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:57:58,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:57:58,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:57:58,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:57:58,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:57:58,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:57:58,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:57:58,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:57:58,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:57:58,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:57:58,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:57:58,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (1/1) ... [2021-08-29 07:57:58,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:57:58,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:57:58,851 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) [2021-08-29 07:57:58,871 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 [2021-08-29 07:57:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 07:57:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:57:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 07:57:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 07:57:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 07:57:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:57:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:57:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 07:57:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 07:57:59,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:57:59,242 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-08-29 07:57:59,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:57:59 BoogieIcfgContainer [2021-08-29 07:57:59,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:57:59,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:57:59,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:57:59,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:57:59,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:57:58" (1/3) ... [2021-08-29 07:57:59,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f8d490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:57:59, skipping insertion in model container [2021-08-29 07:57:59,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:57:58" (2/3) ... [2021-08-29 07:57:59,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f8d490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:57:59, skipping insertion in model container [2021-08-29 07:57:59,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:57:59" (3/3) ... [2021-08-29 07:57:59,250 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2021-08-29 07:57:59,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:57:59,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:57:59,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:57:59,297 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 [2021-08-29 07:57:59,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:57:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 107 states have internal predecessors, (179), 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) [2021-08-29 07:57:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 07:57:59,316 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:57:59,317 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:57:59,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:57:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:57:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2057066253, now seen corresponding path program 1 times [2021-08-29 07:57:59,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 07:57:59,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962476015] [2021-08-29 07:57:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:57:59,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 07:57:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:57:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:57:59,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 07:57:59,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962476015] [2021-08-29 07:57:59,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962476015] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 07:57:59,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:57:59,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 07:57:59,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422789168] [2021-08-29 07:57:59,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 07:57:59,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 07:57:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 07:57:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 07:57:59,521 INFO L87 Difference]: Start difference. First operand has 108 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 107 states have internal predecessors, (179), 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) [2021-08-29 07:57:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:57:59,780 INFO L93 Difference]: Finished difference Result 214 states and 356 transitions. [2021-08-29 07:57:59,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 07:57:59,784 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 [2021-08-29 07:57:59,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:57:59,795 INFO L225 Difference]: With dead ends: 214 [2021-08-29 07:57:59,795 INFO L226 Difference]: Without dead ends: 105 [2021-08-29 07:57:59,799 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 07:57:59,803 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 165.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211.03ms IncrementalHoareTripleChecker+Time [2021-08-29 07:57:59,804 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 154 Unknown, 0 Unchecked, 2.08ms Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 211.03ms Time] [2021-08-29 07:57:59,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-08-29 07:57:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-08-29 07:57:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4519230769230769) internal successors, (151), 104 states have internal predecessors, (151), 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) [2021-08-29 07:57:59,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2021-08-29 07:57:59,854 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 11 [2021-08-29 07:57:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:57:59,855 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2021-08-29 07:57:59,855 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) [2021-08-29 07:57:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2021-08-29 07:57:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 07:57:59,857 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:57:59,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:57:59,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 07:57:59,858 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:57:59,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:57:59,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1327273670, now seen corresponding path program 1 times [2021-08-29 07:57:59,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 07:57:59,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649902645] [2021-08-29 07:57:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:57:59,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 07:57:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:57:59,912 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 07:57:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:57:59,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 07:57:59,981 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 07:57:59,982 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 07:57:59,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 07:57:59,995 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 07:58:00,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:58:00 BoogieIcfgContainer [2021-08-29 07:58:00,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 07:58:00,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 07:58:00,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 07:58:00,048 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 07:58:00,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:57:59" (3/4) ... [2021-08-29 07:58:00,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 07:58:00,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 07:58:00,052 INFO L158 Benchmark]: Toolchain (without parser) took 1645.66ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.9MB in the beginning and 48.0MB in the end (delta: -13.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-08-29 07:58:00,053 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:58:00,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.55ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 37.0MB in the end (delta: -2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 07:58:00,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.91ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 33.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 07:58:00,058 INFO L158 Benchmark]: Boogie Preprocessor took 51.31ms. Allocated memory is still 56.6MB. Free memory was 33.7MB in the beginning and 30.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 07:58:00,059 INFO L158 Benchmark]: RCFGBuilder took 423.59ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 30.9MB in the beginning and 44.6MB in the end (delta: -13.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-08-29 07:58:00,059 INFO L158 Benchmark]: TraceAbstraction took 802.38ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 48.4MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:58:00,060 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 48.0MB in the end (delta: 393.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:58:00,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.55ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 37.0MB in the end (delta: -2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.91ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 33.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.31ms. Allocated memory is still 56.6MB. Free memory was 33.7MB in the beginning and 30.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 423.59ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 30.9MB in the beginning and 44.6MB in the end (delta: -13.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 802.38ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 48.4MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 48.0MB in the end (delta: 393.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 239]: 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 147, overapproximation of bitwiseAnd at line 165, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183, overapproximation of someBinaryDOUBLEComparisonOperation at line 238. Possible FailurePath: [L30] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L155] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L234] double x = 1.0; [L158] double z, p, q, r, w, s, c, df; [L159] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L161] ieee_double_shape_type gh_u; [L162] gh_u.value = (x) [L163] EXPR gh_u.parts.msw [L163] (hx) = gh_u.parts.msw [L165] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L166] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L181] COND TRUE ix < 0x3fe00000 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L182] COND TRUE ix <= 0x3c600000 [L183] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L235] double res = __ieee754_acos(x); [L238] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L238] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L239] reach_error() VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 698.69ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.66ms, AutomataDifference: 314.47ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.11ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 211.03ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 165.91ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 154 mSolverCounterSat, 2.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 38.05ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.42ms SsaConstructionTime, 61.17ms SatisfiabilityAnalysisTime, 69.21ms 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 [2021-08-29 07:58:00,101 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-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:58:01,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:58:01,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:58:01,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:58:01,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:58:01,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:58:01,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:58:01,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:58:01,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:58:01,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:58:01,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:58:01,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:58:01,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:58:01,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:58:01,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:58:01,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:58:01,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:58:01,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:58:01,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:58:01,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:58:01,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:58:01,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:58:01,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:58:01,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:58:01,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:58:01,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:58:01,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:58:01,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:58:01,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:58:01,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:58:01,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:58:01,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:58:01,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:58:01,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:58:01,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:58:01,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:58:01,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:58:01,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:58:01,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:58:01,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:58:01,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:58:01,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 07:58:02,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:58:02,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:58:02,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:58:02,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:58:02,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:58:02,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:58:02,021 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:58:02,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:58:02,021 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:58:02,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:58:02,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:58:02,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:58:02,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:58:02,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:58:02,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:58:02,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:58:02,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:58:02,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 07:58:02,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 07:58:02,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:58:02,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:58:02,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 07:58:02,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f5e58fe25aaebf796c63bc50448f305eda1695c [2021-08-29 07:58:02,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:58:02,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:58:02,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:58:02,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:58:02,359 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:58:02,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-08-29 07:58:02,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abeee54a0/3d08d0089b23479689825b8199f40f6a/FLAG0ec2c6011 [2021-08-29 07:58:02,846 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:58:02,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2021-08-29 07:58:02,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abeee54a0/3d08d0089b23479689825b8199f40f6a/FLAG0ec2c6011 [2021-08-29 07:58:03,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abeee54a0/3d08d0089b23479689825b8199f40f6a [2021-08-29 07:58:03,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:58:03,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:58:03,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:58:03,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:58:03,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:58:03,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68df93c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03, skipping insertion in model container [2021-08-29 07:58:03,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:58:03,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:58:03,454 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_0480.c[5882,5895] [2021-08-29 07:58:03,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:58:03,474 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:58:03,584 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_0480.c[5882,5895] [2021-08-29 07:58:03,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:58:03,614 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:58:03,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03 WrapperNode [2021-08-29 07:58:03,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:58:03,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:58:03,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:58:03,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:58:03,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:58:03,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:58:03,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:58:03,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:58:03,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:58:03,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:58:03,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:58:03,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:58:03,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (1/1) ... [2021-08-29 07:58:03,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:58:03,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:58:03,799 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) [2021-08-29 07:58:03,819 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 [2021-08-29 07:58:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-29 07:58:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-29 07:58:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 07:58:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:58:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 07:58:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:58:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:58:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 07:58:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 07:58:04,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:58:04,245 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-08-29 07:58:04,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:58:04 BoogieIcfgContainer [2021-08-29 07:58:04,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:58:04,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:58:04,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:58:04,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:58:04,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:58:03" (1/3) ... [2021-08-29 07:58:04,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d08f757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:58:04, skipping insertion in model container [2021-08-29 07:58:04,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:58:03" (2/3) ... [2021-08-29 07:58:04,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d08f757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:58:04, skipping insertion in model container [2021-08-29 07:58:04,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:58:04" (3/3) ... [2021-08-29 07:58:04,254 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2021-08-29 07:58:04,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:58:04,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:58:04,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:58:04,311 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 [2021-08-29 07:58:04,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:58:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 107 states have internal predecessors, (179), 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) [2021-08-29 07:58:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 07:58:04,330 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:58:04,330 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:58:04,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:58:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:58:04,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2057066253, now seen corresponding path program 1 times [2021-08-29 07:58:04,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:58:04,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276807897] [2021-08-29 07:58:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:58:04,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:58:04,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:58:04,353 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) [2021-08-29 07:58:04,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 07:58:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:58:05,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 07:58:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:58:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:58:05,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:58:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:58:05,287 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:58:05,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276807897] [2021-08-29 07:58:05,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276807897] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:58:05,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:58:05,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 07:58:05,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969074796] [2021-08-29 07:58:05,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 07:58:05,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:58:05,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 07:58:05,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 07:58:05,338 INFO L87 Difference]: Start difference. First operand has 108 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 107 states have internal predecessors, (179), 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) [2021-08-29 07:58:09,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:10,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:14,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:17,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:19,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:21,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:23,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:26,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:29,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:33,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:38,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:39,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:58:43,993 INFO L93 Difference]: Finished difference Result 214 states and 356 transitions. [2021-08-29 07:58:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 07:58:43,995 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 [2021-08-29 07:58:43,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:58:44,002 INFO L225 Difference]: With dead ends: 214 [2021-08-29 07:58:44,003 INFO L226 Difference]: Without dead ends: 105 [2021-08-29 07:58:44,005 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 07:58:44,007 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35183.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38594.96ms IncrementalHoareTripleChecker+Time [2021-08-29 07:58:44,008 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 154 Unknown, 0 Unchecked, 2.77ms Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 8 Unknown, 0 Unchecked, 38594.96ms Time] [2021-08-29 07:58:44,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-08-29 07:58:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-08-29 07:58:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4519230769230769) internal successors, (151), 104 states have internal predecessors, (151), 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) [2021-08-29 07:58:44,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2021-08-29 07:58:44,043 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 11 [2021-08-29 07:58:44,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:58:44,044 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2021-08-29 07:58:44,044 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) [2021-08-29 07:58:44,044 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2021-08-29 07:58:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 07:58:44,045 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:58:44,045 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:58:44,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 07:58:44,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:58:44,261 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:58:44,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:58:44,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1327273670, now seen corresponding path program 1 times [2021-08-29 07:58:44,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:58:44,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643969890] [2021-08-29 07:58:44,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:58:44,263 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:58:44,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:58:44,264 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) [2021-08-29 07:58:44,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 07:58:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:58:44,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 07:58:44,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:58:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:58:46,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:58:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:58:49,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:58:49,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643969890] [2021-08-29 07:58:49,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643969890] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:58:49,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:58:49,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 07:58:49,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771442911] [2021-08-29 07:58:49,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 07:58:49,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:58:49,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 07:58:49,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 07:58:49,523 INFO L87 Difference]: Start difference. First operand 105 states and 151 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) [2021-08-29 07:58:51,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:53,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:58:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:58:56,220 INFO L93 Difference]: Finished difference Result 123 states and 169 transitions. [2021-08-29 07:58:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 07:58:56,221 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 [2021-08-29 07:58:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:58:56,221 INFO L225 Difference]: With dead ends: 123 [2021-08-29 07:58:56,221 INFO L226 Difference]: Without dead ends: 28 [2021-08-29 07:58:56,222 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2998.41ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 07:58:56,223 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6341.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.20ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 6666.48ms IncrementalHoareTripleChecker+Time [2021-08-29 07:58:56,224 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 113 Unknown, 0 Unchecked, 2.20ms Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 46 Unchecked, 6666.48ms Time] [2021-08-29 07:58:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-29 07:58:56,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2021-08-29 07:58:56,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-08-29 07:58:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-08-29 07:58:56,227 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-08-29 07:58:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:58:56,228 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-08-29 07:58:56,228 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) [2021-08-29 07:58:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-08-29 07:58:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 07:58:56,229 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:58:56,229 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:58:56,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 07:58:56,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:58:56,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:58:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:58:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1300609201, now seen corresponding path program 1 times [2021-08-29 07:58:56,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:58:56,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081290051] [2021-08-29 07:58:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:58:56,440 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:58:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:58:56,447 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) [2021-08-29 07:58:56,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 07:58:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:58:57,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-29 07:58:57,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:58:57,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-29 07:59:03,122 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 07:59:03,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2021-08-29 07:59:04,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-29 07:59:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:06,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:59:10,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 07:59:10,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 61 [2021-08-29 07:59:10,745 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 07:59:10,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 63 [2021-08-29 07:59:11,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-08-29 07:59:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:14,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:59:14,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081290051] [2021-08-29 07:59:14,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081290051] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:59:14,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:59:14,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-29 07:59:14,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943109553] [2021-08-29 07:59:14,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-29 07:59:14,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:59:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-29 07:59:14,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-29 07:59:14,126 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-08-29 07:59:15,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:59:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:59:16,346 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-08-29 07:59:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 07:59:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 [2021-08-29 07:59:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:59:16,348 INFO L225 Difference]: With dead ends: 28 [2021-08-29 07:59:16,348 INFO L226 Difference]: Without dead ends: 19 [2021-08-29 07:59:16,348 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5782.11ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-29 07:59:16,349 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2045.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 2076.89ms IncrementalHoareTripleChecker+Time [2021-08-29 07:59:16,349 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 67 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 52 Unchecked, 2076.89ms Time] [2021-08-29 07:59:16,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-08-29 07:59:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-08-29 07:59:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-08-29 07:59:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-08-29 07:59:16,354 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2021-08-29 07:59:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:59:16,354 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-08-29 07:59:16,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-08-29 07:59:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-08-29 07:59:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 07:59:16,355 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:59:16,355 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:59:16,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-29 07:59:16,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:59:16,557 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:59:16,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:59:16,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2062223078, now seen corresponding path program 1 times [2021-08-29 07:59:16,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:59:16,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297937178] [2021-08-29 07:59:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:59:16,558 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:59:16,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:59:16,560 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) [2021-08-29 07:59:16,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 07:59:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:59:16,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 07:59:16,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:59:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:17,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:59:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:17,992 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:59:17,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297937178] [2021-08-29 07:59:17,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297937178] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:59:17,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:59:17,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-08-29 07:59:17,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382211037] [2021-08-29 07:59:17,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 07:59:17,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:59:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 07:59:17,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 07:59:17,995 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 07:59:20,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 07:59:22,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:59:22,172 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-08-29 07:59:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 07:59:22,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 14 [2021-08-29 07:59:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:59:22,173 INFO L225 Difference]: With dead ends: 31 [2021-08-29 07:59:22,173 INFO L226 Difference]: Without dead ends: 28 [2021-08-29 07:59:22,173 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1014.17ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 07:59:22,174 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3787.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.88ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3838.74ms IncrementalHoareTripleChecker+Time [2021-08-29 07:59:22,175 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 1.88ms Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 3838.74ms Time] [2021-08-29 07:59:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-29 07:59:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2021-08-29 07:59:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-08-29 07:59:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-08-29 07:59:22,181 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2021-08-29 07:59:22,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:59:22,181 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-08-29 07:59:22,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-08-29 07:59:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-08-29 07:59:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 07:59:22,182 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:59:22,182 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:59:22,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 07:59:22,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:59:22,394 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:59:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:59:22,394 INFO L82 PathProgramCache]: Analyzing trace with hash 2064070120, now seen corresponding path program 1 times [2021-08-29 07:59:22,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:59:22,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727457913] [2021-08-29 07:59:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:59:22,395 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:59:22,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:59:22,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 07:59:22,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 07:59:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:59:22,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 07:59:22,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:59:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:25,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:59:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:27,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:59:27,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727457913] [2021-08-29 07:59:27,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727457913] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:59:27,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:59:27,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 07:59:27,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192864985] [2021-08-29 07:59:27,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 07:59:27,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:59:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 07:59:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 07:59:27,166 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2021-08-29 07:59:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:59:27,630 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-08-29 07:59:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 07:59:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 14 [2021-08-29 07:59:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:59:27,631 INFO L225 Difference]: With dead ends: 28 [2021-08-29 07:59:27,631 INFO L226 Difference]: Without dead ends: 19 [2021-08-29 07:59:27,632 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1405.32ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 07:59:27,632 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 460.58ms IncrementalHoareTripleChecker+Time [2021-08-29 07:59:27,633 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 27 Unchecked, 460.58ms Time] [2021-08-29 07:59:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-08-29 07:59:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-08-29 07:59:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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) [2021-08-29 07:59:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-08-29 07:59:27,636 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2021-08-29 07:59:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:59:27,636 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-08-29 07:59:27,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2021-08-29 07:59:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-08-29 07:59:27,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 07:59:27,637 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:59:27,637 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:59:27,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-08-29 07:59:27,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:59:27,841 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:59:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:59:27,842 INFO L82 PathProgramCache]: Analyzing trace with hash -832376325, now seen corresponding path program 1 times [2021-08-29 07:59:27,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:59:27,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341847686] [2021-08-29 07:59:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:59:27,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:59:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:59:27,844 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 07:59:27,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 07:59:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:59:27,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-29 07:59:27,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:59:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:31,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:59:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:59:35,607 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:59:35,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341847686] [2021-08-29 07:59:35,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341847686] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:59:35,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:59:35,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-08-29 07:59:35,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404125113] [2021-08-29 07:59:35,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-29 07:59:35,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:59:35,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-29 07:59:35,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-08-29 07:59:35,609 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-08-29 07:59:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 07:59:41,869 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-08-29 07:59:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 07:59:41,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 18 [2021-08-29 07:59:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 07:59:41,870 INFO L225 Difference]: With dead ends: 19 [2021-08-29 07:59:41,870 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 07:59:41,870 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8156.60ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-08-29 07:59:41,871 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3634.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 3663.93ms IncrementalHoareTripleChecker+Time [2021-08-29 07:59:41,871 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 119 Unknown, 0 Unchecked, 2.22ms Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 35 Unchecked, 3663.93ms Time] [2021-08-29 07:59:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 07:59:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 07:59:41,872 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) [2021-08-29 07:59:41,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 07:59:41,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-08-29 07:59:41,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 07:59:41,872 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 07:59:41,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-08-29 07:59:41,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 07:59:41,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 07:59:41,874 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 07:59:41,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 07:59:42,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:59:42,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 07:59:42,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:42,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 07:59:44,599 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L854 garLoopResultBuilder]: At program point L168-2(lines 168 172) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_16| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_16|)) ((_ to_fp 11 53) currentRoundingMode 1.0)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_16|) ULTIMATE.start___ieee754_acos_~hx~0))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_acos_~x ((_ to_fp 11 53) currentRoundingMode 1.0))) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8| (_ BitVec 32))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8|))) (let ((.cse0 (select .cse1 (_ bv4 32)))) (and (= ULTIMATE.start___ieee754_acos_~x (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))) (= (bvand (_ bv2147483647 32) .cse0) ULTIMATE.start___ieee754_acos_~ix~0) (= (select .cse1 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_14|)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|) .cse0)))))) [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L168-3(lines 166 180) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 104) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L103-2(lines 103 104) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L103-3(lines 103 104) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L103-5(lines 103 104) no Hoare annotation was computed. [2021-08-29 07:59:44,600 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 43) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 74) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L854 garLoopResultBuilder]: At program point L38-2(lines 38 43) the Hoare annotation is: false [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L71-3(lines 71 74) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L38-3(lines 32 140) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L71-5(lines 71 74) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L38-5(lines 38 43) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L854 garLoopResultBuilder]: At program point L38-6(lines 38 43) the Hoare annotation is: false [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L38-7(lines 32 140) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L238(line 238) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L858 garLoopResultBuilder]: For program point L238-2(lines 238 241) no Hoare annotation was computed. [2021-08-29 07:59:44,601 INFO L854 garLoopResultBuilder]: At program point L139(lines 32 140) the Hoare annotation is: false [2021-08-29 07:59:44,602 INFO L854 garLoopResultBuilder]: At program point L139-1(lines 32 140) the Hoare annotation is: false [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 177) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L209-1(lines 209 214) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L854 garLoopResultBuilder]: At program point L209-2(lines 209 214) the Hoare annotation is: false [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L209-3(lines 209 214) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L861 garLoopResultBuilder]: At program point L243(lines 228 244) the Hoare annotation is: true [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 127) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L113-1(lines 113 127) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 225) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 126) no Hoare annotation was computed. [2021-08-29 07:59:44,602 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 54) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L115-2(lines 115 126) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L854 garLoopResultBuilder]: At program point L82-2(lines 82 92) the Hoare annotation is: false [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 54) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L82-3(lines 82 92) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L49-3(lines 49 54) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L49-5(lines 49 54) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L854 garLoopResultBuilder]: At program point L82-6(lines 82 92) the Hoare annotation is: false [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L82-7(lines 82 92) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 183) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 50 53) no Hoare annotation was computed. [2021-08-29 07:59:44,603 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 88) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L117-2(lines 117 125) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L84-2(lines 84 88) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L84-5(lines 84 88) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 53) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 53) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L120-3(lines 120 125) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-08-29 07:59:44,604 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res|) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (bvor (bvadd (_ bv3222274048 32) ULTIMATE.start___ieee754_acos_~ix~0) ULTIMATE.start___ieee754_acos_~lx~0) (_ bv0 32))) [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L121-2(lines 121 122) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L121-3(lines 121 122) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L121-5(lines 121 122) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 68) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 68) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 68) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L57-5(lines 57 68) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L854 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: false [2021-08-29 07:59:44,605 INFO L858 garLoopResultBuilder]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2021-08-29 07:59:44,605 INFO L854 garLoopResultBuilder]: At program point L58-6(lines 58 62) the Hoare annotation is: false [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point L58-7(lines 58 62) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L854 garLoopResultBuilder]: At program point L224(lines 157 226) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res|) (= (bvor (bvadd (_ bv3222274048 32) ULTIMATE.start___ieee754_acos_~ix~0) ULTIMATE.start___ieee754_acos_~lx~0) (_ bv0 32))) [2021-08-29 07:59:44,606 INFO L854 garLoopResultBuilder]: At program point L27(lines 18 28) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short19| (= (bvor (bvadd (_ bv3222274048 32) ULTIMATE.start___ieee754_acos_~ix~0) ULTIMATE.start___ieee754_acos_~lx~0) (_ bv0 32))) [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 225) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 160 164) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L854 garLoopResultBuilder]: At program point L160-2(lines 160 164) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_acos_~x ((_ to_fp 11 53) currentRoundingMode 1.0))) [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point L160-3(lines 160 164) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L854 garLoopResultBuilder]: At program point L95-2(lines 95 111) the Hoare annotation is: false [2021-08-29 07:59:44,606 INFO L858 garLoopResultBuilder]: For program point L95-3(lines 32 140) no Hoare annotation was computed. [2021-08-29 07:59:44,606 INFO L854 garLoopResultBuilder]: At program point L95-6(lines 95 111) the Hoare annotation is: false [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L95-7(lines 32 140) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L854 garLoopResultBuilder]: At program point L63-3(lines 63 64) the Hoare annotation is: false [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L63-4(lines 63 64) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L63-7(lines 63 64) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L854 garLoopResultBuilder]: At program point L63-8(lines 63 64) the Hoare annotation is: false [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L63-9(lines 63 64) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 131) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L130-2(lines 130 131) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 131) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L130-5(lines 130 131) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 107) no Hoare annotation was computed. [2021-08-29 07:59:44,607 INFO L858 garLoopResultBuilder]: For program point L98-2(lines 98 107) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L98-3(lines 98 107) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L98-5(lines 98 107) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 239) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 180) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 101) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 138) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L854 garLoopResultBuilder]: At program point L133-2(lines 133 138) the Hoare annotation is: false [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L100-2(lines 100 101) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L133-3(lines 133 138) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L100-3(lines 100 101) no Hoare annotation was computed. [2021-08-29 07:59:44,608 INFO L858 garLoopResultBuilder]: For program point L133-5(lines 133 138) no Hoare annotation was computed. [2021-08-29 07:59:44,609 INFO L858 garLoopResultBuilder]: For program point L100-5(lines 100 101) no Hoare annotation was computed. [2021-08-29 07:59:44,609 INFO L854 garLoopResultBuilder]: At program point L133-6(lines 133 138) the Hoare annotation is: false [2021-08-29 07:59:44,609 INFO L858 garLoopResultBuilder]: For program point L133-7(lines 133 138) no Hoare annotation was computed. [2021-08-29 07:59:44,615 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 07:59:44,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,635 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:59:44 BoogieIcfgContainer [2021-08-29 07:59:44,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 07:59:44,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 07:59:44,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 07:59:44,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 07:59:44,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:58:04" (3/4) ... [2021-08-29 07:59:44,640 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 07:59:44,652 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-08-29 07:59:44,653 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-08-29 07:59:44,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 07:59:44,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 07:59:44,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) [2021-08-29 07:59:44,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_skolemized_q#valueAsBitvector_16 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_16[63:63], v_skolemized_q#valueAsBitvector_16[62:52], v_skolemized_q#valueAsBitvector_16[51:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) && v_skolemized_q#valueAsBitvector_16[63:32] == hx) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8 : bv32 :: ((x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][4bv32]) == ix) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][0bv32] == v_skolemized_q#valueAsBitvector_14[31:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][4bv32]) [2021-08-29 07:59:44,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == \result && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 [2021-08-29 07:59:44,675 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == res) && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 [2021-08-29 07:59:44,675 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0bv32 && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 [2021-08-29 07:59:44,717 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 07:59:44,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 07:59:44,718 INFO L158 Benchmark]: Toolchain (without parser) took 101463.25ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 35.8MB in the beginning and 47.7MB in the end (delta: -12.0MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,719 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:59:44,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 37.0MB in the end (delta: -1.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.35ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 33.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,720 INFO L158 Benchmark]: Boogie Preprocessor took 69.70ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 30.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,720 INFO L158 Benchmark]: RCFGBuilder took 486.27ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 30.9MB in the beginning and 40.5MB in the end (delta: -9.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,721 INFO L158 Benchmark]: TraceAbstraction took 100387.75ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 32.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,721 INFO L158 Benchmark]: Witness Printer took 81.05ms. Allocated memory is still 71.3MB. Free memory was 32.6MB in the beginning and 47.7MB in the end (delta: -15.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 07:59:44,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 37.0MB in the end (delta: -1.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.35ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 33.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.70ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 30.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.27ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 30.9MB in the beginning and 40.5MB in the end (delta: -9.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 100387.75ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 32.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 81.05ms. Allocated memory is still 71.3MB. Free memory was 32.6MB in the beginning and 47.7MB in the end (delta: -15.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 239]: 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, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 100311.13ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 10.94ms, AutomataDifference: 58555.07ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 2523.67ms, InitialAbstractionConstructionTime: 10.39ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 55301.59ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 51447.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 160 IncrementalHoareTripleChecker+Unchecked, 235 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 379 mSolverCounterSat, 10.50ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 19356.67ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 34.72ms AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 27 NumberOfFragments, 123 HoareAnnotationTreeSize, 21 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 80.89ms HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2434.77ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 71.06ms SsaConstructionTime, 1938.59ms SatisfiabilityAnalysisTime, 35650.28ms InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 31 QuantifiedInterpolants, 892 SizeOfPredicates, 35 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 18]: Loop Invariant Derived loop invariant: (\result == 0bv32 && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant [2021-08-29 07:59:44,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_16,QUANTIFIED] [2021-08-29 07:59:44,759 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] [2021-08-29 07:59:44,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-08-29 07:59:44,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8,QUANTIFIED] Derived loop invariant: ((\exists v_skolemized_q#valueAsBitvector_16 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_16[63:63], v_skolemized_q#valueAsBitvector_16[62:52], v_skolemized_q#valueAsBitvector_16[51:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) && v_skolemized_q#valueAsBitvector_16[63:32] == hx) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8 : bv32 :: ((x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][4bv32]) == ix) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][0bv32] == v_skolemized_q#valueAsBitvector_14[31:0]) && v_skolemized_q#valueAsBitvector_14[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1.base_8][4bv32]) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == \result && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 - InvariantResult [Line: 160]: Loop Invariant [2021-08-29 07:59:44,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 07:59:44,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == res) && ~bvor32(~bvadd64(3222274048bv32, ix), lx) == 0bv32 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-29 07:59:44,998 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 [2021-08-29 07:59:45,083 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...