./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0930.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_0930.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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:09:50,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:09:50,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:09:50,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:09:50,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:09:50,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:09:50,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:09:50,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:09:50,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:09:50,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:09:50,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:09:50,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:09:50,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:09:50,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:09:50,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:09:50,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:09:50,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:09:50,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:09:50,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:09:50,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:09:50,364 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:09:50,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:09:50,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:09:50,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:09:50,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:09:50,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:09:50,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:09:50,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:09:50,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:09:50,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:09:50,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:09:50,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:09:50,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:09:50,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:09:50,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:09:50,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:09:50,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:09:50,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:09:50,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:09:50,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:09:50,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:09:50,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:09:50,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:09:50,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:09:50,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:09:50,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:09:50,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:09:50,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:09:50,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:09:50,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:09:50,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:09:50,400 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:09:50,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:09:50,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:09:50,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:09:50,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:09:50,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:09:50,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:09:50,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:09:50,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:09:50,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:09:50,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:09:50,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:09:50,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:09:50,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:09:50,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:09:50,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:09:50,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:09:50,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:09:50,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:09:50,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:09:50,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2022-07-19 14:09:50,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:09:50,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:09:50,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:09:50,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:09:50,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:09:50,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2022-07-19 14:09:50,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dc0e469/bda84dab80384c5e81eba2fbdb748cf1/FLAG6eedfcc83 [2022-07-19 14:09:51,054 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:09:51,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2022-07-19 14:09:51,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dc0e469/bda84dab80384c5e81eba2fbdb748cf1/FLAG6eedfcc83 [2022-07-19 14:09:51,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dc0e469/bda84dab80384c5e81eba2fbdb748cf1 [2022-07-19 14:09:51,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:09:51,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:09:51,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:09:51,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:09:51,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:09:51,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ca260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51, skipping insertion in model container [2022-07-19 14:09:51,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:09:51,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:09:51,669 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_0930.c[3808,3821] [2022-07-19 14:09:51,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:09:51,684 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:09:51,722 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_0930.c[3808,3821] [2022-07-19 14:09:51,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:09:51,733 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:09:51,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51 WrapperNode [2022-07-19 14:09:51,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:09:51,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:09:51,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:09:51,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:09:51,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,801 INFO L137 Inliner]: procedures = 18, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 174 [2022-07-19 14:09:51,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:09:51,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:09:51,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:09:51,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:09:51,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:09:51,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:09:51,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:09:51,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:09:51,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (1/1) ... [2022-07-19 14:09:51,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:09:51,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:09:51,896 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 14:09:51,919 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 14:09:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:09:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:09:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:09:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:09:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:09:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:09:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:09:51,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:09:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:09:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:09:52,029 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:09:52,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:09:52,307 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:09:52,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:09:52,313 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-19 14:09:52,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:09:52 BoogieIcfgContainer [2022-07-19 14:09:52,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:09:52,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:09:52,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:09:52,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:09:52,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:09:51" (1/3) ... [2022-07-19 14:09:52,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ec4318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:09:52, skipping insertion in model container [2022-07-19 14:09:52,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:51" (2/3) ... [2022-07-19 14:09:52,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ec4318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:09:52, skipping insertion in model container [2022-07-19 14:09:52,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:09:52" (3/3) ... [2022-07-19 14:09:52,323 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2022-07-19 14:09:52,334 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:09:52,334 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:09:52,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:09:52,387 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@574f6457, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a5f6e3b [2022-07-19 14:09:52,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:09:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 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 14:09:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 14:09:52,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:09:52,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:09:52,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:09:52,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:09:52,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1030829373, now seen corresponding path program 1 times [2022-07-19 14:09:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:09:52,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118396034] [2022-07-19 14:09:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:09:52,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:09:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:09:52,559 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 14:09:52,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:09:52,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118396034] [2022-07-19 14:09:52,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118396034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:09:52,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:09:52,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:09:52,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248511842] [2022-07-19 14:09:52,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:09:52,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:09:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:09:52,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:09:52,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:09:52,599 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:09:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:09:52,619 INFO L93 Difference]: Finished difference Result 72 states and 120 transitions. [2022-07-19 14:09:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:09:52,621 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-19 14:09:52,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:09:52,630 INFO L225 Difference]: With dead ends: 72 [2022-07-19 14:09:52,630 INFO L226 Difference]: Without dead ends: 34 [2022-07-19 14:09:52,633 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 14:09:52,637 INFO L413 NwaCegarLoop]: 50 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, 50 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 14:09:52,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:09:52,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-19 14:09:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-19 14:09:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 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 14:09:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2022-07-19 14:09:52,670 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 10 [2022-07-19 14:09:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:09:52,670 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2022-07-19 14:09:52,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:09:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2022-07-19 14:09:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:09:52,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:09:52,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:09:52,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:09:52,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:09:52,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:09:52,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1304477824, now seen corresponding path program 1 times [2022-07-19 14:09:52,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:09:52,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5444401] [2022-07-19 14:09:52,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:09:52,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:09:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:09:52,777 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:09:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:09:52,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:09:52,850 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:09:52,851 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:09:52,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:09:52,856 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 14:09:52,860 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:09:52,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:09:52 BoogieIcfgContainer [2022-07-19 14:09:52,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:09:52,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:09:52,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:09:52,901 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:09:52,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:09:52" (3/4) ... [2022-07-19 14:09:52,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:09:52,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:09:52,906 INFO L158 Benchmark]: Toolchain (without parser) took 1448.50ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 64.5MB in the beginning and 70.9MB in the end (delta: -6.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-07-19 14:09:52,907 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 50.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:09:52,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.99ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 69.3MB in the end (delta: -5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 14:09:52,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.78ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 66.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:09:52,909 INFO L158 Benchmark]: Boogie Preprocessor took 57.40ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 65.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:09:52,909 INFO L158 Benchmark]: RCFGBuilder took 453.74ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 50.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 14:09:52,909 INFO L158 Benchmark]: TraceAbstraction took 582.50ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 49.7MB in the beginning and 70.9MB in the end (delta: -21.2MB). Peak memory consumption was 484.2kB. Max. memory is 16.1GB. [2022-07-19 14:09:52,910 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:09:52,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory was 50.5MB in the beginning and 50.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.99ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 69.3MB in the end (delta: -5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.78ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 66.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.40ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 65.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.74ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 50.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 582.50ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 49.7MB in the beginning and 70.9MB in the end (delta: -21.2MB). Peak memory consumption was 484.2kB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 151. Possible FailurePath: [L34-L43] 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; [L45] static const double zero = 0.0; VAL [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, two54_log=18014398509481984, zero=0] [L146] double x = 1.0; [L148] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=1, 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, two54_log=18014398509481984, x=1, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=1, hx=6, 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, lx=0, two54_log=18014398509481984, x=1, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=1, hx=6, 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, lx=0, two54_log=18014398509481984, x=1, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=1, hx=6, 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, lx=0, two54_log=18014398509481984, x=1, zero=0] [L148] RET, EXPR __ieee754_log(x) [L148] double res = __ieee754_log(x); [L151] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [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, res=18014398509481985, res == 0.0 && __signbit_double(res) == 0=0, two54_log=18014398509481984, x=1, zero=0] [L151] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L152] reach_error() VAL [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, res=18014398509481985, two54_log=18014398509481984, x=1, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, 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, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 50 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 14:09:52,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_0930.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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:09:54,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:09:54,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:09:54,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:09:54,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:09:54,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:09:54,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:09:54,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:09:54,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:09:54,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:09:54,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:09:54,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:09:54,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:09:54,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:09:54,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:09:54,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:09:54,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:09:54,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:09:54,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:09:54,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:09:54,914 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:09:54,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:09:54,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:09:54,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:09:54,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:09:54,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:09:54,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:09:54,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:09:54,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:09:54,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:09:54,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:09:54,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:09:54,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:09:54,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:09:54,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:09:54,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:09:54,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:09:54,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:09:54,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:09:54,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:09:54,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:09:54,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:09:54,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:09:54,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:09:54,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:09:54,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:09:54,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:09:54,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:09:54,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:09:54,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:09:54,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:09:54,980 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:09:54,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:09:54,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:09:54,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:09:54,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:09:54,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:09:54,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:09:54,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:09:54,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:09:54,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:09:54,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:09:54,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:09:54,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:09:54,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:09:54,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:09:54,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:09:54,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:09:54,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:09:54,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:09:54,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:09:54,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:09:54,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:09:54,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:09:54,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:09:54,985 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:09:54,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:09:54,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:09:54,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:09:54,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2022-07-19 14:09:55,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:09:55,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:09:55,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:09:55,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:09:55,355 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:09:55,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2022-07-19 14:09:55,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef5114a/b33adf2983704678905acae3b826322a/FLAGfa3834160 [2022-07-19 14:09:55,748 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:09:55,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2022-07-19 14:09:55,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef5114a/b33adf2983704678905acae3b826322a/FLAGfa3834160 [2022-07-19 14:09:56,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef5114a/b33adf2983704678905acae3b826322a [2022-07-19 14:09:56,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:09:56,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:09:56,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:09:56,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:09:56,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:09:56,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ded57f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56, skipping insertion in model container [2022-07-19 14:09:56,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:09:56,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:09:56,321 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_0930.c[3808,3821] [2022-07-19 14:09:56,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:09:56,338 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:09:56,414 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_0930.c[3808,3821] [2022-07-19 14:09:56,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:09:56,430 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:09:56,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56 WrapperNode [2022-07-19 14:09:56,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:09:56,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:09:56,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:09:56,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:09:56,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,488 INFO L137 Inliner]: procedures = 21, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 162 [2022-07-19 14:09:56,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:09:56,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:09:56,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:09:56,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:09:56,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:09:56,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:09:56,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:09:56,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:09:56,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (1/1) ... [2022-07-19 14:09:56,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:09:56,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:09:56,568 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 14:09:56,598 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 14:09:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:09:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:09:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:09:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:09:56,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:09:56,735 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:09:56,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:10:20,742 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:10:20,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:10:20,747 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-19 14:10:20,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:10:20 BoogieIcfgContainer [2022-07-19 14:10:20,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:10:20,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:10:20,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:10:20,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:10:20,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:09:56" (1/3) ... [2022-07-19 14:10:20,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a8a8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:10:20, skipping insertion in model container [2022-07-19 14:10:20,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:09:56" (2/3) ... [2022-07-19 14:10:20,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a8a8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:10:20, skipping insertion in model container [2022-07-19 14:10:20,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:10:20" (3/3) ... [2022-07-19 14:10:20,755 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2022-07-19 14:10:20,766 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:10:20,767 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:10:20,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:10:20,810 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@6da50f56, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a40c011 [2022-07-19 14:10:20,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:10:20,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 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 14:10:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 14:10:20,819 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:20,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:10:20,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2022-07-19 14:10:20,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:20,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822998987] [2022-07-19 14:10:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:20,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:20,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:20,839 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 14:10:20,859 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 14:10:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:21,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:10:21,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:21,623 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 14:10:21,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:21,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:21,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822998987] [2022-07-19 14:10:21,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822998987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:21,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:21,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:10:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173772201] [2022-07-19 14:10:21,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:21,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:10:21,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:10:21,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:10:21,652 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:10:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:10:21,665 INFO L93 Difference]: Finished difference Result 64 states and 104 transitions. [2022-07-19 14:10:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:10:21,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-19 14:10:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:10:21,678 INFO L225 Difference]: With dead ends: 64 [2022-07-19 14:10:21,678 INFO L226 Difference]: Without dead ends: 30 [2022-07-19 14:10:21,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 14:10:21,683 INFO L413 NwaCegarLoop]: 44 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, 44 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 14:10:21,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:10:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-19 14:10:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-19 14:10:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 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 14:10:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-07-19 14:10:21,709 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 10 [2022-07-19 14:10:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:10:21,709 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-07-19 14:10:21,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:10:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-07-19 14:10:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:10:21,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:21,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:10:21,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 14:10:21,915 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 14:10:21,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:21,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:21,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2022-07-19 14:10:21,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:21,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700982146] [2022-07-19 14:10:21,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:21,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:21,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:21,919 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 14:10:21,921 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 14:10:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:22,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:10:22,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:23,235 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 14:10:23,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:23,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:23,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700982146] [2022-07-19 14:10:23,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700982146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:23,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:10:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137506656] [2022-07-19 14:10:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:23,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:10:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:10:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:10:23,242 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:10:23,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:10:23,250 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2022-07-19 14:10:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:10:23,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:10:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:10:23,253 INFO L225 Difference]: With dead ends: 50 [2022-07-19 14:10:23,253 INFO L226 Difference]: Without dead ends: 26 [2022-07-19 14:10:23,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:10:23,255 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:10:23,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-07-19 14:10:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-19 14:10:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-19 14:10:23,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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 14:10:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-07-19 14:10:23,268 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 11 [2022-07-19 14:10:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:10:23,268 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-07-19 14:10:23,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:10:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-07-19 14:10:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:10:23,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:23,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:10:23,290 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 14:10:23,471 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 14:10:23,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -594905855, now seen corresponding path program 1 times [2022-07-19 14:10:23,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:23,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956361479] [2022-07-19 14:10:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:23,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:23,475 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 14:10:23,477 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 14:10:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:23,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:10:23,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:24,264 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 14:10:24,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:24,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:24,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956361479] [2022-07-19 14:10:24,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956361479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:24,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:24,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:10:24,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782068723] [2022-07-19 14:10:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:24,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:10:24,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:24,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:10:24,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:10:24,268 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:10:24,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:10:24,272 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-07-19 14:10:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:10:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:10:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:10:24,273 INFO L225 Difference]: With dead ends: 35 [2022-07-19 14:10:24,273 INFO L226 Difference]: Without dead ends: 26 [2022-07-19 14:10:24,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:10:24,275 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:10:24,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-07-19 14:10:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-19 14:10:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-19 14:10:24,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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 14:10:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-07-19 14:10:24,279 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2022-07-19 14:10:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:10:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-07-19 14:10:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:10:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-07-19 14:10:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:10:24,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:24,280 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 14:10:24,292 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 14:10:24,486 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 14:10:24,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:24,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash 464469069, now seen corresponding path program 1 times [2022-07-19 14:10:24,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:24,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579337789] [2022-07-19 14:10:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:24,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:24,490 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 14:10:24,492 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 14:10:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:24,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 14:10:24,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:25,720 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 14:10:25,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:25,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:25,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579337789] [2022-07-19 14:10:25,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579337789] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:25,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:25,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:10:25,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907352084] [2022-07-19 14:10:25,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:25,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:10:25,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:10:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:10:25,723 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 14:10:28,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:30,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:33,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:35,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:37,689 WARN L534 Checker$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 14:10:40,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:42,418 WARN L534 Checker$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 14:10:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:10:43,110 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-07-19 14:10:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:10:43,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 14:10:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:10:43,112 INFO L225 Difference]: With dead ends: 47 [2022-07-19 14:10:43,112 INFO L226 Difference]: Without dead ends: 44 [2022-07-19 14:10:43,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:10:43,113 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:10:43,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 84 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 16.7s Time] [2022-07-19 14:10:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-19 14:10:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2022-07-19 14:10:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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 14:10:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-07-19 14:10:43,118 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 17 [2022-07-19 14:10:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:10:43,118 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-19 14:10:43,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 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 14:10:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-07-19 14:10:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:10:43,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:43,119 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 14:10:43,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 14:10:43,320 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 14:10:43,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:43,321 INFO L85 PathProgramCache]: Analyzing trace with hash 466316111, now seen corresponding path program 1 times [2022-07-19 14:10:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:43,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534454644] [2022-07-19 14:10:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:43,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:43,323 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 14:10:43,325 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 14:10:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:43,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-19 14:10:43,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:46,310 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 14:10:46,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:46,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:46,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534454644] [2022-07-19 14:10:46,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534454644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:46,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:46,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 14:10:46,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797223204] [2022-07-19 14:10:46,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:46,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 14:10:46,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 14:10:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:10:46,315 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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 14:10:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:10:46,320 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-07-19 14:10:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:10:46,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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 14:10:46,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:10:46,321 INFO L225 Difference]: With dead ends: 37 [2022-07-19 14:10:46,321 INFO L226 Difference]: Without dead ends: 28 [2022-07-19 14:10:46,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:10:46,322 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:10:46,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 96 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-07-19 14:10:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-19 14:10:46,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-19 14:10:46,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 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 14:10:46,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-07-19 14:10:46,326 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 17 [2022-07-19 14:10:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:10:46,326 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-07-19 14:10:46,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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 14:10:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-07-19 14:10:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:10:46,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:10:46,327 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 14:10:46,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-19 14:10:46,548 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 14:10:46,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:10:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:10:46,549 INFO L85 PathProgramCache]: Analyzing trace with hash 671337773, now seen corresponding path program 1 times [2022-07-19 14:10:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:10:46,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632327823] [2022-07-19 14:10:46,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:10:46,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:10:46,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:10:46,551 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 14:10:46,552 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 14:10:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:10:47,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-19 14:10:47,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:10:48,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-07-19 14:10:50,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 59 [2022-07-19 14:10:51,524 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 14:10:51,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:10:51,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:10:51,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632327823] [2022-07-19 14:10:51,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632327823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:10:51,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:10:51,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 14:10:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336930630] [2022-07-19 14:10:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:10:51,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 14:10:51,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:10:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 14:10:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 14:10:51,526 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) 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 14:10:55,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:10:58,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:00,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:02,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:04,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:06,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:08,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:11,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:13,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:15,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:17,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:11:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:17,635 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2022-07-19 14:11:17,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 14:11:17,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) 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 14:11:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:17,699 INFO L225 Difference]: With dead ends: 44 [2022-07-19 14:11:17,699 INFO L226 Difference]: Without dead ends: 34 [2022-07-19 14:11:17,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:11:17,700 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 26 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:17,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 73 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 11 Unknown, 16 Unchecked, 25.8s Time] [2022-07-19 14:11:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-19 14:11:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2022-07-19 14:11:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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 14:11:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-07-19 14:11:17,710 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 17 [2022-07-19 14:11:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:17,710 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-07-19 14:11:17,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) 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 14:11:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-07-19 14:11:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 14:11:17,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:17,711 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 14:11:17,743 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 14:11:17,911 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 14:11:17,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1125442114, now seen corresponding path program 1 times [2022-07-19 14:11:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:17,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304231687] [2022-07-19 14:11:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:17,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:11:17,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 14:11:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:20,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 14:11:20,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:22,471 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 14:11:22,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:22,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:22,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304231687] [2022-07-19 14:11:22,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304231687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:22,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:22,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:11:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143320877] [2022-07-19 14:11:22,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:22,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:11:22,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:22,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:11:22,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:11:22,473 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 14:11:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:22,475 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-07-19 14:11:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 14:11:22,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 14:11:22,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:22,475 INFO L225 Difference]: With dead ends: 34 [2022-07-19 14:11:22,475 INFO L226 Difference]: Without dead ends: 22 [2022-07-19 14:11:22,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:11:22,476 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:22,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-07-19 14:11:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-19 14:11:22,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-19 14:11:22,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0) internal successors, (21), 21 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 14:11:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2022-07-19 14:11:22,480 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2022-07-19 14:11:22,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:22,481 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2022-07-19 14:11:22,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 14:11:22,481 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2022-07-19 14:11:22,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-19 14:11:22,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:11:22,488 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 14:11:22,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 14:11:22,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:22,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:11:22,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:11:22,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1561479138, now seen corresponding path program 1 times [2022-07-19 14:11:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:11:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135189938] [2022-07-19 14:11:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:11:22,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:11:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:11:22,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:11:22,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 14:11:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:11:22,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-19 14:11:22,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:11:26,026 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 14:11:26,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:11:26,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:11:26,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135189938] [2022-07-19 14:11:26,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135189938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:11:26,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:11:26,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:11:26,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347568700] [2022-07-19 14:11:26,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:11:26,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 14:11:26,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:11:26,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 14:11:26,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:11:26,028 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 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 14:11:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:11:28,625 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-07-19 14:11:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 14:11:28,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 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 14:11:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:11:28,626 INFO L225 Difference]: With dead ends: 22 [2022-07-19 14:11:28,626 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:11:28,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-19 14:11:28,627 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:11:28,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 6 Unchecked, 0.7s Time] [2022-07-19 14:11:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:11:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:11:28,628 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 14:11:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:11:28,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-07-19 14:11:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:11:28,628 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:11:28,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 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 14:11:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:11:28,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:11:28,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:11:28,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-19 14:11:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:11:28,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L151-2(lines 151 154) no Hoare annotation was computed. [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2022-07-19 14:11:30,890 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-19 14:11:30,890 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_20| (_ BitVec 64))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13|) (_ bv4 32)))) (and (= (bvand .cse0 (_ bv1048575 32)) |ULTIMATE.start___ieee754_log_~hx~1#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_20|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_20|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_20|)) |ULTIMATE.start___ieee754_log_~x#1|) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_20|) .cse0)))) (= ((_ to_fp 11 53) currentRoundingMode 1.0) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_17| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (let ((.cse1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_17|))) (and (= |ULTIMATE.start___ieee754_log_~i~0#1| (bvand (_ bv1048576 32) (bvadd (bvand .cse1 (_ bv1048575 32)) (_ bv614244 32)))) (= ((_ to_fp 11 53) currentRoundingMode 1.0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_17|))) (= (bvadd (_ bv1023 32) |ULTIMATE.start___ieee754_log_~k~0#1|) (bvashr .cse1 (_ bv20 32))))))) [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L895 garLoopResultBuilder]: At program point L137(lines 128 138) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short13#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|)) [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2022-07-19 14:11:30,891 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L131-1(lines 131 135) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L895 garLoopResultBuilder]: At program point L131-2(lines 131 135) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short13#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) ~zero~0) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_log_#res#1|)) [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L131-3(lines 131 135) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L902 garLoopResultBuilder]: At program point L156(lines 140 157) the Hoare annotation is: true [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:11:30,892 INFO L895 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) |ULTIMATE.start___ieee754_log_~x#1|) (= (_ +zero 11 53) ~zero~0) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_log_~f~0#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_log_#res#1|)) [2022-07-19 14:11:30,892 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2022-07-19 14:11:30,893 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2022-07-19 14:11:30,895 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:11:30,903 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:11:30,911 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,912 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:11:30,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,918 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,918 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:11:30,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,925 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,925 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,925 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,925 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,926 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,926 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,926 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,926 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:11:30 BoogieIcfgContainer [2022-07-19 14:11:30,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:11:30,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:11:30,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:11:30,928 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:11:30,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:10:20" (3/4) ... [2022-07-19 14:11:30,931 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:11:30,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-07-19 14:11:30,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-19 14:11:30,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 14:11:30,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:11:30,958 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == x && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) == f) && ~Pluszero~LONGDOUBLE() == \result [2022-07-19 14:11:30,959 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13 : bv32, v_skolemized_q#valueAsBitvector_20 : bv64 :: (~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13][4bv32], 1048575bv32) == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_20[63:63], v_skolemized_q#valueAsBitvector_20[62:52], v_skolemized_q#valueAsBitvector_20[51:0]) == x) && v_skolemized_q#valueAsBitvector_20[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13][4bv32]) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_17 : bv64, currentRoundingMode : FloatRoundingMode :: (i == ~bvand32(1048576bv32, ~bvadd64(~bvand32(v_skolemized_q#valueAsBitvector_17[63:32], 1048575bv32), 614244bv32)) && ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_17[63:63], v_skolemized_q#valueAsBitvector_17[62:52], v_skolemized_q#valueAsBitvector_17[51:0])) && ~bvadd64(1023bv32, k) == ~bvashr32(v_skolemized_q#valueAsBitvector_17[63:32], 20bv32)) [2022-07-19 14:11:30,959 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == zero) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result [2022-07-19 14:11:30,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result [2022-07-19 14:11:30,975 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:11:30,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:11:30,976 INFO L158 Benchmark]: Toolchain (without parser) took 94826.46ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 34.7MB in the beginning and 49.1MB in the end (delta: -14.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,976 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory is still 37.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:11:30,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.44ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 37.3MB in the end (delta: -2.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.66ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,977 INFO L158 Benchmark]: Boogie Preprocessor took 48.94ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 33.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,978 INFO L158 Benchmark]: RCFGBuilder took 24208.58ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.2MB in the beginning and 49.5MB in the end (delta: -16.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,978 INFO L158 Benchmark]: TraceAbstraction took 70177.34ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 53.3MB in the end (delta: -4.2MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,978 INFO L158 Benchmark]: Witness Printer took 47.97ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 49.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:11:30,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory is still 37.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.44ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 37.3MB in the end (delta: -2.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.66ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 35.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.94ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 33.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 24208.58ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.2MB in the beginning and 49.5MB in the end (delta: -16.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 70177.34ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 53.3MB in the end (delta: -4.2MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 47.97ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 49.1MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,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[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,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[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,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 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 152]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 43.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 594 SdHoareTripleChecker+Invalid, 41.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 73 IncrementalHoareTripleChecker+Unchecked, 385 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 209 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 45, 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, 8 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 129 HoareAnnotationTreeSize, 7 FomulaSimplifications, 103 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 113 ConstructedInterpolants, 36 QuantifiedInterpolants, 987 SizeOfPredicates, 47 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant [2022-07-19 14:11:30,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == x && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 78]: Loop Invariant [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,991 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,992 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,993 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_20,QUANTIFIED] [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13,QUANTIFIED] [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:11:30,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] [2022-07-19 14:11:30,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_17,QUANTIFIED] Derived loop invariant: ((((\exists v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13 : bv32, v_skolemized_q#valueAsBitvector_20 : bv64 :: (~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13][4bv32], 1048575bv32) == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_20[63:63], v_skolemized_q#valueAsBitvector_20[62:52], v_skolemized_q#valueAsBitvector_20[51:0]) == x) && v_skolemized_q#valueAsBitvector_20[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_log_~#ew_u~1#1.base_13][4bv32]) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == x) && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_17 : bv64, currentRoundingMode : FloatRoundingMode :: (i == ~bvand32(1048576bv32, ~bvadd64(~bvand32(v_skolemized_q#valueAsBitvector_17[63:32], 1048575bv32), 614244bv32)) && ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_17[63:63], v_skolemized_q#valueAsBitvector_17[62:52], v_skolemized_q#valueAsBitvector_17[51:0])) && ~bvadd64(1023bv32, k) == ~bvashr32(v_skolemized_q#valueAsBitvector_17[63:32], 20bv32)) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == zero) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 47]: Loop Invariant [2022-07-19 14:11:30,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,996 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:11:30,997 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == x && ~Pluszero~LONGDOUBLE() == zero) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) == f) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-19 14:11:31,215 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 14:11:31,267 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