./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_0970a.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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:11:03,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:11:03,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:11:03,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:11:03,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:11:03,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:11:03,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:11:03,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:11:03,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:11:03,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:11:03,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:11:03,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:11:03,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:11:03,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:11:03,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:11:03,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:11:03,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:11:03,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:11:03,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:11:03,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:11:03,982 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:11:03,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:11:03,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:11:03,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:11:03,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:11:03,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:11:03,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:11:03,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:11:03,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:11:03,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:11:03,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:11:03,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:11:03,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:11:03,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:11:03,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:11:03,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:11:03,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:11:03,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:11:03,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:11:03,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:11:03,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:11:03,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:11:03,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:11:04,019 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:11:04,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:11:04,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:11:04,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:11:04,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:11:04,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:11:04,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:11:04,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:11:04,022 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:11:04,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:11:04,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:11:04,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:11:04,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:11:04,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:11:04,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:11:04,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:11:04,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:11:04,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:11:04,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:11:04,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:11:04,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:11:04,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:11:04,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:11:04,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:11:04,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:11:04,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:11:04,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:11:04,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:11:04,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:11:04,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:11:04,026 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:11:04,027 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:11:04,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:11:04,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2022-07-19 14:11:04,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:11:04,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:11:04,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:11:04,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:11:04,241 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:11:04,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-07-19 14:11:04,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6133e251a/df9dfd3d5b0f476da6dca5e8f3b73814/FLAG041ec9058 [2022-07-19 14:11:04,710 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:11:04,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-07-19 14:11:04,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6133e251a/df9dfd3d5b0f476da6dca5e8f3b73814/FLAG041ec9058 [2022-07-19 14:11:04,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6133e251a/df9dfd3d5b0f476da6dca5e8f3b73814 [2022-07-19 14:11:04,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:11:04,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:11:04,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:11:04,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:11:04,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:11:04,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:11:04" (1/1) ... [2022-07-19 14:11:04,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152e2915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:04, skipping insertion in model container [2022-07-19 14:11:04,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:11:04" (1/1) ... [2022-07-19 14:11:04,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:11:04,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:11:04,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-07-19 14:11:04,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:11:04,995 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:11:05,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-07-19 14:11:05,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:11:05,047 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:11:05,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05 WrapperNode [2022-07-19 14:11:05,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:11:05,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:11:05,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:11:05,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:11:05,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,124 INFO L137 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 266 [2022-07-19 14:11:05,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:11:05,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:11:05,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:11:05,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:11:05,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:11:05,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:11:05,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:11:05,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:11:05,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (1/1) ... [2022-07-19 14:11:05,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:11:05,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:11:05,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:11:05,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:11:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:11:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:11:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:11:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:11:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:11:05,355 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:11:05,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:11:05,796 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:11:05,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:11:05,806 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:11:05,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:05 BoogieIcfgContainer [2022-07-19 14:11:05,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:11:05,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:11:05,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:11:05,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:11:05,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:11:04" (1/3) ... [2022-07-19 14:11:05,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d57ec4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:11:05, skipping insertion in model container [2022-07-19 14:11:05,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:05" (2/3) ... [2022-07-19 14:11:05,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d57ec4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:11:05, skipping insertion in model container [2022-07-19 14:11:05,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:05" (3/3) ... [2022-07-19 14:11:05,815 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2022-07-19 14:11:05,825 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:11:05,826 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:11:05,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:11:05,871 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a339bf6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b9f260f [2022-07-19 14:11:05,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:11:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 56 states have (on average 1.7321428571428572) internal successors, (97), 57 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 14:11:05,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:05,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:05,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:05,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1391334256, now seen corresponding path program 1 times [2022-07-19 14:11:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:11:05,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132779578] [2022-07-19 14:11:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:05,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:11:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:06,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:11:06,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132779578] [2022-07-19 14:11:06,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132779578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:06,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:06,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:11:06,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989238571] [2022-07-19 14:11:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:06,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:11:06,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:11:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:11:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:11:06,053 INFO L87 Difference]: Start difference. First operand has 58 states, 56 states have (on average 1.7321428571428572) internal successors, (97), 57 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:06,079 INFO L93 Difference]: Finished difference Result 113 states and 190 transitions. [2022-07-19 14:11:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:11:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-19 14:11:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:06,094 INFO L225 Difference]: With dead ends: 113 [2022-07-19 14:11:06,094 INFO L226 Difference]: Without dead ends: 54 [2022-07-19 14:11:06,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:11:06,100 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:06,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:11:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-19 14:11:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-19 14:11:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2022-07-19 14:11:06,131 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 12 [2022-07-19 14:11:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:06,132 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2022-07-19 14:11:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2022-07-19 14:11:06,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 14:11:06,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:06,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:06,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:11:06,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1010953059, now seen corresponding path program 1 times [2022-07-19 14:11:06,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:11:06,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622037305] [2022-07-19 14:11:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:11:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:06,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:11:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622037305] [2022-07-19 14:11:06,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622037305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:06,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 14:11:06,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215810650] [2022-07-19 14:11:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:06,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 14:11:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:11:06,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 14:11:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 14:11:06,219 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:06,233 INFO L93 Difference]: Finished difference Result 101 states and 142 transitions. [2022-07-19 14:11:06,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 14:11:06,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 14:11:06,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:06,234 INFO L225 Difference]: With dead ends: 101 [2022-07-19 14:11:06,234 INFO L226 Difference]: Without dead ends: 54 [2022-07-19 14:11:06,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 14:11:06,236 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:06,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:11:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-19 14:11:06,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-19 14:11:06,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2022-07-19 14:11:06,243 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 13 [2022-07-19 14:11:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:06,243 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2022-07-19 14:11:06,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2022-07-19 14:11:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:11:06,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:06,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:06,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:11:06,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:06,246 INFO L85 PathProgramCache]: Analyzing trace with hash 36122232, now seen corresponding path program 1 times [2022-07-19 14:11:06,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:11:06,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259334011] [2022-07-19 14:11:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:06,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:11:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:11:06,319 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:11:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:11:06,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:11:06,425 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:11:06,426 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:11:06,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:11:06,434 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 14:11:06,438 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:11:06,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:11:06 BoogieIcfgContainer [2022-07-19 14:11:06,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:11:06,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:11:06,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:11:06,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:11:06,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:05" (3/4) ... [2022-07-19 14:11:06,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:11:06,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:11:06,490 INFO L158 Benchmark]: Toolchain (without parser) took 1753.40ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 59.7MB in the beginning and 108.2MB in the end (delta: -48.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:11:06,490 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:11:06,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.94ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 65.7MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:11:06,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.24ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:11:06,492 INFO L158 Benchmark]: Boogie Preprocessor took 70.50ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:11:06,493 INFO L158 Benchmark]: RCFGBuilder took 611.64ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 60.5MB in the beginning and 110.6MB in the end (delta: -50.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-07-19 14:11:06,493 INFO L158 Benchmark]: TraceAbstraction took 674.94ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-07-19 14:11:06,494 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 108.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:11:06,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.94ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 65.7MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.24ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.50ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.64ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 60.5MB in the beginning and 110.6MB in the end (delta: -50.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * TraceAbstraction took 674.94ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 108.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 190]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L184] CALL, EXPR isfinite_double(x) [L166] __int32_t hx; VAL [\old(x)=18014398509481988, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=18014398509481988, \result=1, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L184] RET, EXPR isfinite_double(x) [L184] x < 0 && isfinite_double(x) VAL [isfinite_double(x)=1, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, x < 0 && isfinite_double(x)=1, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L186] CALL, EXPR __ieee754_log10(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [\old(x)=18014398509481988, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [\old(x)=18014398509481988, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=3, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [\old(x)=18014398509481988, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=3, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [\old(x)=18014398509481988, hx=2146435072, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=3, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] [L186] RET, EXPR __ieee754_log10(x) [L186] double res = __ieee754_log10(x); [L189] CALL, EXPR isnan_double(res) [L163] return x != x; VAL [\old(x)=18014398509481985, \result=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481985, zero=0, zero_log10=0] [L189] RET, EXPR isnan_double(res) [L189] COND TRUE !isnan_double(res) [L190] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=18014398509481985, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481988, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 225 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 155 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 14:11:06,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0970a.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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:11:08,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:11:08,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:11:08,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:11:08,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:11:08,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:11:08,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:11:08,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:11:08,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:11:08,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:11:08,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:11:08,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:11:08,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:11:08,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:11:08,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:11:08,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:11:08,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:11:08,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:11:08,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:11:08,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:11:08,660 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:11:08,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:11:08,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:11:08,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:11:08,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:11:08,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:11:08,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:11:08,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:11:08,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:11:08,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:11:08,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:11:08,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:11:08,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:11:08,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:11:08,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:11:08,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:11:08,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:11:08,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:11:08,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:11:08,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:11:08,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:11:08,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:11:08,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:11:08,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:11:08,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:11:08,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:11:08,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:11:08,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:11:08,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:11:08,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:11:08,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:11:08,721 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:11:08,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:11:08,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:11:08,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:11:08,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:11:08,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:11:08,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:11:08,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:11:08,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:11:08,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:11:08,724 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:11:08,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:11:08,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:11:08,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:11:08,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:11:08,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:11:08,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:11:08,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:11:08,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:11:08,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:11:08,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:11:08,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:11:08,727 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:11:08,727 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:11:08,728 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:11:08,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:11:08,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:11:08,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:11:08,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2022-07-19 14:11:09,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:11:09,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:11:09,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:11:09,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:11:09,101 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:11:09,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-07-19 14:11:09,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ff569ae/352fa27a3fa742af9c8d06deb0bf1dda/FLAGdf164ecec [2022-07-19 14:11:09,558 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:11:09,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2022-07-19 14:11:09,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ff569ae/352fa27a3fa742af9c8d06deb0bf1dda/FLAGdf164ecec [2022-07-19 14:11:09,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ff569ae/352fa27a3fa742af9c8d06deb0bf1dda [2022-07-19 14:11:09,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:11:09,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:11:09,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:11:09,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:11:09,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:11:09,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:11:09" (1/1) ... [2022-07-19 14:11:09,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcf91bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:09, skipping insertion in model container [2022-07-19 14:11:09,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:11:09" (1/1) ... [2022-07-19 14:11:10,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:11:10,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:11:10,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-07-19 14:11:10,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:11:10,255 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:11:10,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2022-07-19 14:11:10,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:11:10,326 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:11:10,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10 WrapperNode [2022-07-19 14:11:10,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:11:10,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:11:10,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:11:10,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:11:10,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,368 INFO L137 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 241 [2022-07-19 14:11:10,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:11:10,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:11:10,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:11:10,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:11:10,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:11:10,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:11:10,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:11:10,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:11:10,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (1/1) ... [2022-07-19 14:11:10,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:11:10,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:11:10,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:11:10,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:11:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:11:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-19 14:11:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-19 14:11:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:11:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:11:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:11:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:11:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:11:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:11:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:11:10,555 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:11:10,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:11:40,260 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:11:40,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:11:40,266 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:11:40,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:40 BoogieIcfgContainer [2022-07-19 14:11:40,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:11:40,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:11:40,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:11:40,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:11:40,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:11:09" (1/3) ... [2022-07-19 14:11:40,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bca6e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:11:40, skipping insertion in model container [2022-07-19 14:11:40,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:11:10" (2/3) ... [2022-07-19 14:11:40,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bca6e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:11:40, skipping insertion in model container [2022-07-19 14:11:40,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:40" (3/3) ... [2022-07-19 14:11:40,276 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2022-07-19 14:11:40,291 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:11:40,292 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:11:40,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:11:40,336 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4afc5498, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@cc405f [2022-07-19 14:11:40,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:11:40,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 14:11:40,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:40,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:40,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2022-07-19 14:11:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:40,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511687241] [2022-07-19 14:11:40,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:40,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:40,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:40,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:11:40,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 14:11:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:40,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:11:40,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:40,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:40,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:40,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511687241] [2022-07-19 14:11:40,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511687241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:40,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:40,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:11:40,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589678439] [2022-07-19 14:11:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:11:40,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:40,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:11:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:11:40,626 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:40,643 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2022-07-19 14:11:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:11:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-19 14:11:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:40,653 INFO L225 Difference]: With dead ends: 95 [2022-07-19 14:11:40,653 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 14:11:40,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:11:40,659 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:40,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:11:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 14:11:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 14:11:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2022-07-19 14:11:40,690 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2022-07-19 14:11:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:40,690 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-07-19 14:11:40,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-07-19 14:11:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 14:11:40,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:40,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:40,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 14:11:40,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:40,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:40,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:40,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2022-07-19 14:11:40,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:40,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816282122] [2022-07-19 14:11:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:40,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:40,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:11:40,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 14:11:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:41,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 14:11:41,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:41,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:41,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:41,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816282122] [2022-07-19 14:11:41,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816282122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:41,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:41,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 14:11:41,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403132923] [2022-07-19 14:11:41,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:41,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 14:11:41,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:41,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 14:11:41,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 14:11:41,246 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:42,235 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2022-07-19 14:11:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 14:11:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 14:11:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:42,238 INFO L225 Difference]: With dead ends: 83 [2022-07-19 14:11:42,238 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 14:11:42,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 14:11:42,240 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:42,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 14:11:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 14:11:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 14:11:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2022-07-19 14:11:42,246 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2022-07-19 14:11:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:42,246 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2022-07-19 14:11:42,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2022-07-19 14:11:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:11:42,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:42,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:42,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:11:42,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:42,449 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:42,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2022-07-19 14:11:42,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:42,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353504684] [2022-07-19 14:11:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:42,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:42,452 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) [2022-07-19 14:11:42,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 14:11:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:42,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 14:11:42,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:44,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:44,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353504684] [2022-07-19 14:11:44,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353504684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:44,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:44,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:11:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426029983] [2022-07-19 14:11:44,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:11:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:11:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:11:44,824 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-07-19 14:11:44,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:44,833 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2022-07-19 14:11:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:11:44,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17 [2022-07-19 14:11:44,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:44,835 INFO L225 Difference]: With dead ends: 74 [2022-07-19 14:11:44,835 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 14:11:44,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:11:44,837 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:44,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-07-19 14:11:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 14:11:44,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 14:11:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:44,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2022-07-19 14:11:44,843 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 17 [2022-07-19 14:11:44,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:44,844 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2022-07-19 14:11:44,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-07-19 14:11:44,844 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2022-07-19 14:11:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:11:44,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:44,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:44,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 14:11:45,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:45,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:45,048 INFO L85 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2022-07-19 14:11:45,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:45,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252644070] [2022-07-19 14:11:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:45,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:45,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:45,051 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) [2022-07-19 14:11:45,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 14:11:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:46,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 14:11:46,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:48,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:48,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:48,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252644070] [2022-07-19 14:11:48,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252644070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:48,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:48,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:11:48,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794952297] [2022-07-19 14:11:48,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:48,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:11:48,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:48,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:11:48,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:11:48,575 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-07-19 14:11:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:48,586 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-07-19 14:11:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:11:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17 [2022-07-19 14:11:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:48,587 INFO L225 Difference]: With dead ends: 50 [2022-07-19 14:11:48,587 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 14:11:48,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:11:48,589 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:48,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-07-19 14:11:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 14:11:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 14:11:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:11:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2022-07-19 14:11:48,595 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 17 [2022-07-19 14:11:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:48,596 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2022-07-19 14:11:48,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-07-19 14:11:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2022-07-19 14:11:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:11:48,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:48,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:48,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-19 14:11:48,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:48,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:48,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash 473095487, now seen corresponding path program 1 times [2022-07-19 14:11:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:48,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729393268] [2022-07-19 14:11:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:48,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:48,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:48,804 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) [2022-07-19 14:11:48,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 14:11:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:49,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:11:49,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:11:52,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:52,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:52,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729393268] [2022-07-19 14:11:52,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729393268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:52,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:52,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:11:52,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99174277] [2022-07-19 14:11:52,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:52,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:11:52,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:52,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:11:52,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:11:52,561 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-07-19 14:11:54,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:57,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:00,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:03,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:06,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:08,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:12,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:15,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:17,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:19,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:21,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:24,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:26,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:29,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:31,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:12:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:12:31,435 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-07-19 14:12:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:12:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) Word has length 18 [2022-07-19 14:12:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:12:31,582 INFO L225 Difference]: With dead ends: 50 [2022-07-19 14:12:31,582 INFO L226 Difference]: Without dead ends: 45 [2022-07-19 14:12:31,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:12:31,583 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:12:31,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 227 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 14 Unknown, 6 Unchecked, 37.7s Time] [2022-07-19 14:12:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-19 14:12:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-19 14:12:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:12:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-07-19 14:12:31,588 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 18 [2022-07-19 14:12:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:12:31,588 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-07-19 14:12:31,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-07-19 14:12:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-07-19 14:12:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-19 14:12:31,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:12:31,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:12:31,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 14:12:31,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:12:31,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:12:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:12:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash 954143623, now seen corresponding path program 1 times [2022-07-19 14:12:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:12:31,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719435881] [2022-07-19 14:12:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:12:31,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:12:31,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:12:31,793 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) [2022-07-19 14:12:31,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 14:12:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:12:32,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 14:12:32,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:12:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:12:35,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:12:35,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:12:35,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719435881] [2022-07-19 14:12:35,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719435881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:12:35,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:12:35,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:12:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170016695] [2022-07-19 14:12:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:12:35,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 14:12:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:12:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 14:12:35,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:12:35,078 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2022-07-19 14:12:35,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:12:35,080 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-07-19 14:12:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:12:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 21 [2022-07-19 14:12:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:12:35,086 INFO L225 Difference]: With dead ends: 45 [2022-07-19 14:12:35,086 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:12:35,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 14:12:35,087 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:12:35,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-07-19 14:12:35,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:12:35,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:12:35,089 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) [2022-07-19 14:12:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:12:35,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-07-19 14:12:35,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:12:35,089 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:12:35,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2022-07-19 14:12:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:12:35,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:12:35,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:12:35,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 14:12:35,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:12:35,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:12:36,668 INFO L895 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (and (exists ((|ULTIMATE.start___ieee754_log10_~x#1| (_ FloatingPoint 11 53))) (= |ULTIMATE.start___ieee754_log10_#res#1| (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_log10_~x#1| |ULTIMATE.start___ieee754_log10_~x#1|) (_ +zero 11 53)))) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 193) no Hoare annotation was computed. [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point L184-4(lines 184 193) no Hoare annotation was computed. [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2022-07-19 14:12:36,668 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:12:36,668 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:12:36,669 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2022-07-19 14:12:36,669 INFO L895 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2022-07-19 14:12:36,669 INFO L899 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2022-07-19 14:12:36,669 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2022-07-19 14:12:36,669 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2022-07-19 14:12:36,670 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2022-07-19 14:12:36,671 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L902 garLoopResultBuilder]: At program point L195(lines 175 196) the Hoare annotation is: true [2022-07-19 14:12:36,671 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2022-07-19 14:12:36,671 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2022-07-19 14:12:36,672 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2022-07-19 14:12:36,672 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2022-07-19 14:12:36,672 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) [2022-07-19 14:12:36,672 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2022-07-19 14:12:36,672 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2022-07-19 14:12:36,672 INFO L895 garLoopResultBuilder]: At program point L172(lines 165 173) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-19 14:12:36,673 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2022-07-19 14:12:36,673 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2022-07-19 14:12:36,673 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2022-07-19 14:12:36,673 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:12:36,673 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2022-07-19 14:12:36,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 190) no Hoare annotation was computed. [2022-07-19 14:12:36,674 INFO L899 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2022-07-19 14:12:36,674 INFO L895 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2022-07-19 14:12:36,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:12:36,674 INFO L899 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2022-07-19 14:12:36,674 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2022-07-19 14:12:36,675 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2022-07-19 14:12:36,675 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-07-19 14:12:36,675 INFO L899 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2022-07-19 14:12:36,675 INFO L895 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_log10_~x#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2022-07-19 14:12:36,675 INFO L899 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2022-07-19 14:12:36,675 INFO L895 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2022-07-19 14:12:36,675 INFO L899 garLoopResultBuilder]: For program point L167-1(lines 167 171) no Hoare annotation was computed. [2022-07-19 14:12:36,676 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2022-07-19 14:12:36,676 INFO L895 garLoopResultBuilder]: At program point L167-2(lines 167 171) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-19 14:12:36,676 INFO L899 garLoopResultBuilder]: For program point L167-3(lines 167 171) no Hoare annotation was computed. [2022-07-19 14:12:36,679 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-19 14:12:36,681 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:12:36,690 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,690 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,691 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,691 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,691 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,692 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,692 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,692 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,693 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,693 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,693 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,695 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:12:36 BoogieIcfgContainer [2022-07-19 14:12:36,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:12:36,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:12:36,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:12:36,696 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:12:36,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:11:40" (3/4) ... [2022-07-19 14:12:36,698 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:12:36,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-07-19 14:12:36,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-07-19 14:12:36,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 14:12:36,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:12:36,730 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-19 14:12:36,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-19 14:12:36,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2022-07-19 14:12:36,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start___ieee754_log10_~x#1 : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x#1, ULTIMATE.start___ieee754_log10_~x#1), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-19 14:12:36,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2022-07-19 14:12:36,753 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:12:36,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:12:36,754 INFO L158 Benchmark]: Toolchain (without parser) took 86764.23ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 25.5MB in the beginning and 31.6MB in the end (delta: -6.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,754 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 48.2MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:12:36,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.09ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 25.3MB in the beginning and 43.1MB in the end (delta: -17.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.99ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,755 INFO L158 Benchmark]: Boogie Preprocessor took 48.31ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,756 INFO L158 Benchmark]: RCFGBuilder took 29849.53ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 34.0MB in the end (delta: 4.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,756 INFO L158 Benchmark]: TraceAbstraction took 56425.59ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 36.5MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:12:36,756 INFO L158 Benchmark]: Witness Printer took 57.85ms. Allocated memory is still 62.9MB. Free memory was 36.5MB in the beginning and 31.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:12:36,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 48.2MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.09ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 25.3MB in the beginning and 43.1MB in the end (delta: -17.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.99ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 40.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.31ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 29849.53ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 34.0MB in the end (delta: 4.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 56425.59ms. Allocated memory is still 62.9MB. Free memory was 33.5MB in the beginning and 36.5MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.85ms. Allocated memory is still 62.9MB. Free memory was 36.5MB in the beginning and 31.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 190]: 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 38.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 924 SdHoareTripleChecker+Invalid, 36.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 633 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 291 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 66 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 34 QuantifiedInterpolants, 536 SizeOfPredicates, 30 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 167]: Loop Invariant [2022-07-19 14:12:36,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant [2022-07-19 14:12:36,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,770 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,770 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,770 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2022-07-19 14:12:36,771 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,771 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,771 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,772 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,772 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~x#1,QUANTIFIED] [2022-07-19 14:12:36,772 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start___ieee754_log10_~x#1 : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10_~x#1, ULTIMATE.start___ieee754_log10_~x#1), ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 125]: Loop Invariant [2022-07-19 14:12:36,773 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:12:36,773 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:12:36,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) RESULT: Ultimate proved your program to be correct! [2022-07-19 14:12:36,991 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 [2022-07-19 14:12:37,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE