./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/float_req_bl_0681a.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 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:29:08,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:29:08,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:29:08,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:29:08,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:29:08,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:29:08,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:29:08,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:29:08,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:29:08,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:29:08,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:29:08,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:29:08,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:29:08,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:29:08,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:29:08,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:29:08,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:29:08,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:29:08,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:29:08,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:29:08,387 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:29:08,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:29:08,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:29:08,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:29:08,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:29:08,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:29:08,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:29:08,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:29:08,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:29:08,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:29:08,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:29:08,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:29:08,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:29:08,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:29:08,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:29:08,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:29:08,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:29:08,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:29:08,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:29:08,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:29:08,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:29:08,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:29:08,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:29:08,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:29:08,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:29:08,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:29:08,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:29:08,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:29:08,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:29:08,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:29:08,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:29:08,443 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:29:08,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:29:08,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:29:08,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:29:08,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:29:08,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:29:08,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:29:08,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:29:08,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:29:08,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:29:08,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:29:08,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:08,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:29:08,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:29:08,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:29:08,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:29:08,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:29:08,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:29:08,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:29:08,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:29:08,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2022-07-22 14:29:08,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:29:08,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:29:08,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:29:08,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:29:08,722 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:29:08,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2022-07-22 14:29:08,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cb0c6c2/4ce9ed738b554a97b9f88b221e85b6d5/FLAGddced1728 [2022-07-22 14:29:09,242 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:29:09,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2022-07-22 14:29:09,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cb0c6c2/4ce9ed738b554a97b9f88b221e85b6d5/FLAGddced1728 [2022-07-22 14:29:09,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cb0c6c2/4ce9ed738b554a97b9f88b221e85b6d5 [2022-07-22 14:29:09,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:29:09,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:29:09,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:09,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:29:09,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:29:09,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279d502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09, skipping insertion in model container [2022-07-22 14:29:09,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:29:09,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:29:09,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2022-07-22 14:29:09,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:09,872 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:29:09,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2022-07-22 14:29:09,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:09,926 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:29:09,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09 WrapperNode [2022-07-22 14:29:09,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:09,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:09,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:29:09,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:29:09,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,990 INFO L137 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 276 [2022-07-22 14:29:09,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:10,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:29:10,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:29:10,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:29:10,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:29:10,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:29:10,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:29:10,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:29:10,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:10,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:10,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:29:10,119 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) [2022-07-22 14:29:10,124 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 [2022-07-22 14:29:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:29:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 14:29:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:29:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 14:29:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 14:29:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 14:29:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-22 14:29:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-22 14:29:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:29:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:29:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 14:29:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 14:29:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-22 14:29:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-22 14:29:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:29:10,243 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:29:10,245 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:29:10,665 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:29:10,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:29:10,672 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-22 14:29:10,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10 BoogieIcfgContainer [2022-07-22 14:29:10,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:29:10,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:29:10,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:29:10,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:29:10,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:29:09" (1/3) ... [2022-07-22 14:29:10,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1d0c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:10, skipping insertion in model container [2022-07-22 14:29:10,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (2/3) ... [2022-07-22 14:29:10,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1d0c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:10, skipping insertion in model container [2022-07-22 14:29:10,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10" (3/3) ... [2022-07-22 14:29:10,682 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2022-07-22 14:29:10,696 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:29:10,697 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:29:10,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:29:10,766 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@51283c48, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b9c333f [2022-07-22 14:29:10,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:29:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 100 states have (on average 1.73) internal successors, (173), 101 states have internal predecessors, (173), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:29:10,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:10,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:10,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 434050506, now seen corresponding path program 1 times [2022-07-22 14:29:10,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:10,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418331861] [2022-07-22 14:29:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:10,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:29:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418331861] [2022-07-22 14:29:10,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418331861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:10,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:10,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:29:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280456855] [2022-07-22 14:29:10,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:10,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:29:10,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:29:11,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:29:11,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:29:11,008 INFO L87 Difference]: Start difference. First operand has 108 states, 100 states have (on average 1.73) internal successors, (173), 101 states have internal predecessors, (173), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:11,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:11,044 INFO L93 Difference]: Finished difference Result 214 states and 364 transitions. [2022-07-22 14:29:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:29:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:29:11,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:11,053 INFO L225 Difference]: With dead ends: 214 [2022-07-22 14:29:11,053 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 14:29:11,056 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 [2022-07-22 14:29:11,060 INFO L413 NwaCegarLoop]: 158 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, 158 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 [2022-07-22 14:29:11,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 14:29:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-07-22 14:29:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 98 states have (on average 1.5) internal successors, (147), 98 states have internal predecessors, (147), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2022-07-22 14:29:11,098 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 11 [2022-07-22 14:29:11,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:11,098 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2022-07-22 14:29:11,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2022-07-22 14:29:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:29:11,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:11,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:11,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 14:29:11,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:11,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1548184466, now seen corresponding path program 1 times [2022-07-22 14:29:11,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:11,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265009594] [2022-07-22 14:29:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:29:11,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265009594] [2022-07-22 14:29:11,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265009594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:11,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:11,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 14:29:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133884814] [2022-07-22 14:29:11,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:11,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 14:29:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:29:11,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 14:29:11,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:29:11,231 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:11,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:11,300 INFO L93 Difference]: Finished difference Result 233 states and 342 transitions. [2022-07-22 14:29:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 14:29:11,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 14:29:11,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:11,304 INFO L225 Difference]: With dead ends: 233 [2022-07-22 14:29:11,304 INFO L226 Difference]: Without dead ends: 157 [2022-07-22 14:29:11,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:29:11,307 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 93 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:11,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 334 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-22 14:29:11,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2022-07-22 14:29:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 125 states have (on average 1.536) internal successors, (192), 125 states have internal predecessors, (192), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 200 transitions. [2022-07-22 14:29:11,328 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 200 transitions. Word has length 13 [2022-07-22 14:29:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:11,329 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 200 transitions. [2022-07-22 14:29:11,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 200 transitions. [2022-07-22 14:29:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:29:11,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:11,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 14:29:11,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1283242459, now seen corresponding path program 1 times [2022-07-22 14:29:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:11,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435300831] [2022-07-22 14:29:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:29:11,430 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 14:29:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:29:11,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 14:29:11,513 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 14:29:11,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:29:11,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 14:29:11,520 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-22 14:29:11,523 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:29:11,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:29:11 BoogieIcfgContainer [2022-07-22 14:29:11,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:29:11,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:29:11,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:29:11,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:29:11,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10" (3/4) ... [2022-07-22 14:29:11,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 14:29:11,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:29:11,589 INFO L158 Benchmark]: Toolchain (without parser) took 1951.56ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 91.0MB in the beginning and 76.6MB in the end (delta: 14.3MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,590 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:11,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.33ms. Allocated memory is still 119.5MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.56ms. Allocated memory is still 119.5MB. Free memory was 89.0MB in the beginning and 86.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,599 INFO L158 Benchmark]: Boogie Preprocessor took 76.45ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 83.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,600 INFO L158 Benchmark]: RCFGBuilder took 596.99ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 59.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,601 INFO L158 Benchmark]: TraceAbstraction took 906.07ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 59.2MB in the beginning and 77.3MB in the end (delta: -18.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-07-22 14:29:11,601 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 146.8MB. Free memory was 77.3MB in the beginning and 76.6MB in the end (delta: 680.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:11,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.33ms. Allocated memory is still 119.5MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.56ms. Allocated memory is still 119.5MB. Free memory was 89.0MB in the beginning and 86.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.45ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 83.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.99ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 59.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 906.07ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 59.2MB in the beginning and 77.3MB in the end (delta: -18.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 146.8MB. Free memory was 77.3MB in the beginning and 76.6MB in the end (delta: 680.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 241]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 240, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someUnaryFLOAToperation at line 236, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L235] float x = 0.0f; [L236] float y = -0.0f; [L237] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L237] RET, EXPR __ieee754_atan2f(y, x) [L237] float res = __ieee754_atan2f(y, x); [L240] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L240] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L241] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 323 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 25 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-22 14:29:11,655 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/float_req_bl_0681a.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 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:29:13,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:29:13,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:29:13,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:29:13,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:29:13,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:29:13,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:29:13,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:29:13,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:29:13,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:29:13,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:29:13,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:29:13,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:29:13,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:29:13,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:29:13,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:29:13,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:29:13,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:29:13,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:29:13,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:29:13,797 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:29:13,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:29:13,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:29:13,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:29:13,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:29:13,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:29:13,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:29:13,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:29:13,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:29:13,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:29:13,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:29:13,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:29:13,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:29:13,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:29:13,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:29:13,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:29:13,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:29:13,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:29:13,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:29:13,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:29:13,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:29:13,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:29:13,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:29:13,849 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:29:13,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:29:13,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:29:13,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:29:13,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:29:13,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:29:13,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:29:13,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:29:13,852 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:29:13,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:29:13,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:29:13,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:29:13,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:29:13,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:29:13,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:29:13,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:29:13,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:29:13,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:29:13,854 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:29:13,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:29:13,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:29:13,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:29:13,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:29:13,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:29:13,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:29:13,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:29:13,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:13,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:29:13,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:29:13,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:29:13,862 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:29:13,862 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:29:13,862 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:29:13,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:29:13,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:29:13,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:29:13,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2022-07-22 14:29:14,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:29:14,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:29:14,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:29:14,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:29:14,228 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:29:14,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2022-07-22 14:29:14,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8171cfd/1799f6d7fc6d4d46b7649ba26a771466/FLAG649ad0bd2 [2022-07-22 14:29:14,773 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:29:14,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2022-07-22 14:29:14,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8171cfd/1799f6d7fc6d4d46b7649ba26a771466/FLAG649ad0bd2 [2022-07-22 14:29:15,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8171cfd/1799f6d7fc6d4d46b7649ba26a771466 [2022-07-22 14:29:15,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:29:15,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:29:15,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:15,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:29:15,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:29:15,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdb1c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15, skipping insertion in model container [2022-07-22 14:29:15,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:29:15,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:29:15,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2022-07-22 14:29:15,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:15,570 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:29:15,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2022-07-22 14:29:15,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:15,647 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:29:15,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15 WrapperNode [2022-07-22 14:29:15,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:15,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:15,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:29:15,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:29:15,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,711 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 240 [2022-07-22 14:29:15,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:15,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:29:15,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:29:15,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:29:15,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:29:15,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:29:15,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:29:15,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:29:15,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (1/1) ... [2022-07-22 14:29:15,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:29:15,841 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) [2022-07-22 14:29:15,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 14:29:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:29:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-22 14:29:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:29:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:29:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-22 14:29:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-22 14:29:15,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-22 14:29:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 14:29:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:29:15,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:29:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-22 14:29:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-22 14:29:15,889 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-22 14:29:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 14:29:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:29:16,024 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:29:16,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:29:28,496 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:29:28,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:29:28,502 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-22 14:29:28,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:28 BoogieIcfgContainer [2022-07-22 14:29:28,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:29:28,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:29:28,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:29:28,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:29:28,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:29:15" (1/3) ... [2022-07-22 14:29:28,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b7a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:28, skipping insertion in model container [2022-07-22 14:29:28,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:15" (2/3) ... [2022-07-22 14:29:28,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b7a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:28, skipping insertion in model container [2022-07-22 14:29:28,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:28" (3/3) ... [2022-07-22 14:29:28,512 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2022-07-22 14:29:28,525 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:29:28,525 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:29:28,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:29:28,583 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@56280af2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@12249b60 [2022-07-22 14:29:28,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:29:28,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:29:28,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:28,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:28,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash 921619847, now seen corresponding path program 1 times [2022-07-22 14:29:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:28,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891843233] [2022-07-22 14:29:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:28,619 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) [2022-07-22 14:29:28,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:29:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:29,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 14:29:29,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:29,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:29,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:29,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891843233] [2022-07-22 14:29:29,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891843233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:29,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:29,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:29:29,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413427249] [2022-07-22 14:29:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:29,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:29:29,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:29,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:29:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:29:29,566 INFO L87 Difference]: Start difference. First operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:29,605 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2022-07-22 14:29:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:29:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:29:29,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:29,617 INFO L225 Difference]: With dead ends: 188 [2022-07-22 14:29:29,618 INFO L226 Difference]: Without dead ends: 92 [2022-07-22 14:29:29,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:29:29,625 INFO L413 NwaCegarLoop]: 135 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, 135 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 [2022-07-22 14:29:29,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-22 14:29:29,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-22 14:29:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 85 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2022-07-22 14:29:29,660 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 11 [2022-07-22 14:29:29,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:29,665 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2022-07-22 14:29:29,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2022-07-22 14:29:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:29:29,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:29,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:29,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:29,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:29,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:29,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1792690814, now seen corresponding path program 1 times [2022-07-22 14:29:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632162864] [2022-07-22 14:29:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:29,892 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) [2022-07-22 14:29:29,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 14:29:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:30,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 14:29:30,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:30,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 14:29:31,410 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 31 treesize of output 15 [2022-07-22 14:29:31,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:31,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:31,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:31,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632162864] [2022-07-22 14:29:31,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632162864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:31,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:31,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 14:29:31,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388424116] [2022-07-22 14:29:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:31,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 14:29:31,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 14:29:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:31,991 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:33,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:29:33,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:33,207 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2022-07-22 14:29:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 14:29:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 14:29:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:33,248 INFO L225 Difference]: With dead ends: 101 [2022-07-22 14:29:33,248 INFO L226 Difference]: Without dead ends: 92 [2022-07-22 14:29:33,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:33,250 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:33,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 688 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 68 Unchecked, 1.1s Time] [2022-07-22 14:29:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-22 14:29:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-22 14:29:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 85 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2022-07-22 14:29:33,265 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 13 [2022-07-22 14:29:33,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:33,266 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2022-07-22 14:29:33,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2022-07-22 14:29:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 14:29:33,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:33,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:33,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:33,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:33,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:33,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1416605106, now seen corresponding path program 1 times [2022-07-22 14:29:33,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:33,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108313920] [2022-07-22 14:29:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:33,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:33,480 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) [2022-07-22 14:29:33,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 14:29:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:34,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 14:29:34,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:34,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:34,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:34,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108313920] [2022-07-22 14:29:34,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108313920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:34,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:34,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 14:29:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21839447] [2022-07-22 14:29:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:34,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 14:29:34,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 14:29:34,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:29:34,809 INFO L87 Difference]: Start difference. First operand 92 states and 131 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:35,381 INFO L93 Difference]: Finished difference Result 189 states and 272 transitions. [2022-07-22 14:29:35,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:29:35,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 14:29:35,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:35,385 INFO L225 Difference]: With dead ends: 189 [2022-07-22 14:29:35,385 INFO L226 Difference]: Without dead ends: 111 [2022-07-22 14:29:35,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:35,389 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:35,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 568 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 31 Unchecked, 0.4s Time] [2022-07-22 14:29:35,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-22 14:29:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 92. [2022-07-22 14:29:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 85 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:35,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2022-07-22 14:29:35,413 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 18 [2022-07-22 14:29:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:35,413 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2022-07-22 14:29:35,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:35,414 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2022-07-22 14:29:35,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 14:29:35,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:35,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:35,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-22 14:29:35,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:35,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:35,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1103354828, now seen corresponding path program 1 times [2022-07-22 14:29:35,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:35,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778592330] [2022-07-22 14:29:35,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:35,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:35,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:35,635 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) [2022-07-22 14:29:35,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 14:29:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:36,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 14:29:36,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:36,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:36,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:36,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778592330] [2022-07-22 14:29:36,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778592330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:36,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:36,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:29:36,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481164168] [2022-07-22 14:29:36,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:36,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:29:36,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:29:36,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:29:36,848 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:38,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:38,958 INFO L93 Difference]: Finished difference Result 104 states and 141 transitions. [2022-07-22 14:29:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:29:38,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 14:29:38,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:38,960 INFO L225 Difference]: With dead ends: 104 [2022-07-22 14:29:38,961 INFO L226 Difference]: Without dead ends: 101 [2022-07-22 14:29:38,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:38,962 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 92 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:38,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 395 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 14:29:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-22 14:29:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2022-07-22 14:29:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2022-07-22 14:29:38,972 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 18 [2022-07-22 14:29:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:38,973 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2022-07-22 14:29:38,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2022-07-22 14:29:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 14:29:38,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:38,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:39,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:39,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:39,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:39,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1552877836, now seen corresponding path program 1 times [2022-07-22 14:29:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:39,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856853204] [2022-07-22 14:29:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:39,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:39,202 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) [2022-07-22 14:29:39,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 14:29:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:40,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:29:40,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:40,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:40,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:40,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856853204] [2022-07-22 14:29:40,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856853204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:40,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:40,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:29:40,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482072552] [2022-07-22 14:29:40,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:40,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:29:40,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:29:40,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:29:40,479 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:42,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:29:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:42,613 INFO L93 Difference]: Finished difference Result 176 states and 246 transitions. [2022-07-22 14:29:42,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:29:42,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-22 14:29:42,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:42,653 INFO L225 Difference]: With dead ends: 176 [2022-07-22 14:29:42,653 INFO L226 Difference]: Without dead ends: 103 [2022-07-22 14:29:42,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:42,654 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 15 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:42,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 503 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 10 Unchecked, 2.0s Time] [2022-07-22 14:29:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-22 14:29:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-07-22 14:29:42,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 14:29:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2022-07-22 14:29:42,662 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 18 [2022-07-22 14:29:42,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:42,662 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2022-07-22 14:29:42,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:42,662 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2022-07-22 14:29:42,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 14:29:42,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:42,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:42,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:42,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:42,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash 69251816, now seen corresponding path program 1 times [2022-07-22 14:29:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:42,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163374571] [2022-07-22 14:29:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:42,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:42,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:42,870 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) [2022-07-22 14:29:42,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 14:29:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:43,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 14:29:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:43,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 14:29:44,102 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 29 treesize of output 13 [2022-07-22 14:29:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:44,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:44,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:44,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163374571] [2022-07-22 14:29:44,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163374571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:44,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:44,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 14:29:44,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608446024] [2022-07-22 14:29:44,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:44,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 14:29:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 14:29:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:44,845 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 14:29:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:45,269 INFO L93 Difference]: Finished difference Result 101 states and 137 transitions. [2022-07-22 14:29:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 14:29:45,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-07-22 14:29:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:45,270 INFO L225 Difference]: With dead ends: 101 [2022-07-22 14:29:45,270 INFO L226 Difference]: Without dead ends: 23 [2022-07-22 14:29:45,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 14:29:45,272 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:45,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 63 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 15 Unchecked, 0.2s Time] [2022-07-22 14:29:45,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-22 14:29:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-22 14:29:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2022-07-22 14:29:45,275 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2022-07-22 14:29:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:45,275 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2022-07-22 14:29:45,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 14:29:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2022-07-22 14:29:45,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-22 14:29:45,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:45,276 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, 1] [2022-07-22 14:29:45,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:45,492 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:45,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1647501431, now seen corresponding path program 1 times [2022-07-22 14:29:45,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:45,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895352001] [2022-07-22 14:29:45,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:45,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:45,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:45,494 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) [2022-07-22 14:29:45,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 14:29:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:46,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 14:29:46,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:47,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:47,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:47,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895352001] [2022-07-22 14:29:47,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895352001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:47,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:47,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 14:29:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010555714] [2022-07-22 14:29:47,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:47,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 14:29:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:47,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 14:29:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 14:29:47,387 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:48,295 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2022-07-22 14:29:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 14:29:48,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-22 14:29:48,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:48,296 INFO L225 Difference]: With dead ends: 23 [2022-07-22 14:29:48,296 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:29:48,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-07-22 14:29:48,297 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:48,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 84 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 14:29:48,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:29:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:29:48,299 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) [2022-07-22 14:29:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:29:48,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-07-22 14:29:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:48,299 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:29:48,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:29:48,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:29:48,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:29:48,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-22 14:29:48,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:48,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:29:49,583 INFO L899 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:49,583 INFO L899 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L902 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L902 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2022-07-22 14:29:49,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L895 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L220-1(lines 220 224) no Hoare annotation was computed. [2022-07-22 14:29:49,585 INFO L895 garLoopResultBuilder]: At program point L220-2(lines 220 224) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| |ULTIMATE.start_main_#t~short42#1| (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-07-22 14:29:49,585 INFO L899 garLoopResultBuilder]: For program point L220-3(lines 220 224) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L895 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2022-07-22 14:29:49,587 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L895 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~x#1|) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L240(line 240) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L240-2(lines 240 243) no Hoare annotation was computed. [2022-07-22 14:29:49,588 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L895 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2022-07-22 14:29:49,589 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L895 garLoopResultBuilder]: At program point L226(lines 217 227) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~1#1|))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| |ULTIMATE.start_main_#t~short42#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-07-22 14:29:49,590 INFO L899 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L902 garLoopResultBuilder]: At program point L245(lines 229 246) the Hoare annotation is: true [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L895 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11|) (_ bv0 32)))) (and (= |ULTIMATE.start___ieee754_atan2f_~hx~1#1| .cse0) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= (bvand (_ bv2147483647 32) .cse1) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|)))) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2022-07-22 14:29:49,591 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L895 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L902 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L902 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-07-22 14:29:49,592 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2022-07-22 14:29:49,593 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-22 14:29:49,594 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2022-07-22 14:29:49,594 INFO L899 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2022-07-22 14:29:49,594 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2022-07-22 14:29:49,594 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2022-07-22 14:29:49,594 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2022-07-22 14:29:49,597 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:49,598 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:29:49,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:29:49 BoogieIcfgContainer [2022-07-22 14:29:49,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:29:49,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:29:49,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:29:49,623 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:29:49,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:28" (3/4) ... [2022-07-22 14:29:49,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:29:49,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2022-07-22 14:29:49,637 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2022-07-22 14:29:49,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-07-22 14:29:49,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-22 14:29:49,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-22 14:29:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:29:49,664 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11 : bv32 :: hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2022-07-22 14:29:49,664 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2022-07-22 14:29:49,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2022-07-22 14:29:49,667 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2022-07-22 14:29:49,696 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:29:49,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:29:49,697 INFO L158 Benchmark]: Toolchain (without parser) took 34399.10ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 28.8MB in the end (delta: -2.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,697 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.3MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:49,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.64ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 25.8MB in the beginning and 40.3MB in the end (delta: -14.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.86ms. Allocated memory is still 60.8MB. Free memory was 40.3MB in the beginning and 37.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,698 INFO L158 Benchmark]: Boogie Preprocessor took 88.24ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 35.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,698 INFO L158 Benchmark]: RCFGBuilder took 12701.34ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 27.5MB in the end (delta: 7.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,699 INFO L158 Benchmark]: TraceAbstraction took 21113.51ms. Allocated memory is still 60.8MB. Free memory was 27.0MB in the beginning and 34.6MB in the end (delta: -7.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,699 INFO L158 Benchmark]: Witness Printer took 74.27ms. Allocated memory is still 60.8MB. Free memory was 34.6MB in the beginning and 28.8MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:49,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.3MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.64ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 25.8MB in the beginning and 40.3MB in the end (delta: -14.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.86ms. Allocated memory is still 60.8MB. Free memory was 40.3MB in the beginning and 37.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.24ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 35.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 12701.34ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 27.5MB in the end (delta: 7.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 21113.51ms. Allocated memory is still 60.8MB. Free memory was 27.0MB in the beginning and 34.6MB in the end (delta: -7.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 74.27ms. Allocated memory is still 60.8MB. Free memory was 34.6MB in the beginning and 28.8MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 241]: 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 3 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 2436 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 124 IncrementalHoareTripleChecker+Unchecked, 1759 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 677 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 44 PreInvPairs, 50 NumberOfFragments, 146 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 112 ConstructedInterpolants, 16 QuantifiedInterpolants, 847 SizeOfPredicates, 50 NumberOfNonLiveVariables, 833 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: ((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2022-07-22 14:29:49,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,714 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:49,714 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11 : bv32 :: hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y RESULT: Ultimate proved your program to be correct! [2022-07-22 14:29:49,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE