./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:37,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:47:37,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:47:37,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:47:37,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:47:37,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:47:37,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:47:37,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:47:37,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:47:38,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:47:38,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:47:38,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:47:38,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:47:38,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:47:38,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:47:38,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:47:38,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:47:38,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:47:38,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:47:38,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:47:38,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:47:38,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:47:38,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:47:38,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:47:38,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:47:38,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:47:38,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:47:38,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:47:38,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:47:38,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:47:38,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:38,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:38,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:38,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:38,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:38,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:38,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:38,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:38,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:38,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:38,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:38,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 08:47:38,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:38,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:38,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:38,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:38,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:38,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:38,096 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:38,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:38,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:38,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 08:47:38,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:38,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:38,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:38,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:38,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:38,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:38,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:38,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:38,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:38,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:38,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:38,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:38,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:38,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:38,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:38,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:38,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 08:47:38,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 08:47:38,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:38,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:38,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2021-08-29 08:47:38,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:38,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:38,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:38,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:38,542 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:38,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2021-08-29 08:47:38,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c59f679/715adb0c2c144915ad86c47c17535380/FLAGeba927ab5 [2021-08-29 08:47:39,047 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:39,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2021-08-29 08:47:39,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c59f679/715adb0c2c144915ad86c47c17535380/FLAGeba927ab5 [2021-08-29 08:47:39,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c59f679/715adb0c2c144915ad86c47c17535380 [2021-08-29 08:47:39,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:39,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:39,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:39,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:39,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:39,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6bc259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39, skipping insertion in model container [2021-08-29 08:47:39,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:39,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:39,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2021-08-29 08:47:39,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:39,626 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:39,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2021-08-29 08:47:39,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:39,665 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:39,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39 WrapperNode [2021-08-29 08:47:39,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:39,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:39,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:39,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:39,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:39,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:39,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:39,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:39,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:39,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:39,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:39,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:39,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (1/1) ... [2021-08-29 08:47:39,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:39,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:39,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:39,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:47:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 08:47:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 08:47:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:40,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:40,116 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:40,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:40 BoogieIcfgContainer [2021-08-29 08:47:40,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:40,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:40,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:40,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:40,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:39" (1/3) ... [2021-08-29 08:47:40,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f216c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:40, skipping insertion in model container [2021-08-29 08:47:40,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:39" (2/3) ... [2021-08-29 08:47:40,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f216c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:40, skipping insertion in model container [2021-08-29 08:47:40,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:40" (3/3) ... [2021-08-29 08:47:40,128 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2021-08-29 08:47:40,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:40,132 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:40,179 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:40,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:40,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:47:40,204 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:40,205 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:40,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:40,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:40,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2021-08-29 08:47:40,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:40,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435424903] [2021-08-29 08:47:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:40,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:40,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:40,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 08:47:40,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435424903] [2021-08-29 08:47:40,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435424903] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:40,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:40,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 08:47:40,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176030958] [2021-08-29 08:47:40,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:40,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 08:47:40,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:40,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:40,391 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:40,469 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2021-08-29 08:47:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:40,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 08:47:40,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:40,478 INFO L225 Difference]: With dead ends: 58 [2021-08-29 08:47:40,479 INFO L226 Difference]: Without dead ends: 27 [2021-08-29 08:47:40,481 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:40,490 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.96ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:40,491 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.53ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 59.96ms Time] [2021-08-29 08:47:40,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-29 08:47:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-29 08:47:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-08-29 08:47:40,530 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2021-08-29 08:47:40,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:40,530 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-08-29 08:47:40,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:40,531 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-08-29 08:47:40,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:47:40,531 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:40,531 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:40,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 08:47:40,532 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:40,533 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2021-08-29 08:47:40,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:40,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125596799] [2021-08-29 08:47:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:40,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:40,626 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 08:47:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:40,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 08:47:40,716 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 08:47:40,718 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:40,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 08:47:40,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:40,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:40 BoogieIcfgContainer [2021-08-29 08:47:40,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:40,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:40,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:40,774 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:40,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:40" (3/4) ... [2021-08-29 08:47:40,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 08:47:40,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:40,780 INFO L158 Benchmark]: Toolchain (without parser) took 1322.50ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.1MB in the beginning and 41.6MB in the end (delta: -9.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-08-29 08:47:40,781 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:40,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.67ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 51.3MB in the end (delta: -19.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-08-29 08:47:40,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.10ms. Allocated memory is still 67.1MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:40,787 INFO L158 Benchmark]: Boogie Preprocessor took 51.06ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:40,788 INFO L158 Benchmark]: RCFGBuilder took 326.51ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 37.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:40,789 INFO L158 Benchmark]: TraceAbstraction took 651.80ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 42.0MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:40,789 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 67.1MB. Free memory was 42.0MB in the beginning and 41.6MB in the end (delta: 359.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:40,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.67ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 51.3MB in the end (delta: -19.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.10ms. Allocated memory is still 67.1MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.06ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 326.51ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 37.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 651.80ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 42.0MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 67.1MB. Free memory was 42.0MB in the beginning and 41.6MB in the end (delta: 359.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 83]: 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 82, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L83] reach_error() VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 549.56ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.33ms, AutomataDifference: 125.55ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.82ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 59.96ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 48.51ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 39 mSolverCounterSat, 0.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 20.11ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.82ms SsaConstructionTime, 96.36ms SatisfiabilityAnalysisTime, 62.91ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 08:47:40,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:42,721 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-29 08:47:42,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:42,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:42,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:42,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:42,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:42,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:42,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:42,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:42,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:42,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:42,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:42,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 08:47:42,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:42,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:42,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:42,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:42,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:42,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:42,887 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:42,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:42,888 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:42,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:42,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:42,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:42,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:42,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:42,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:42,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:42,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:42,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:42,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:42,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:42,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:42,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:42,892 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 08:47:42,892 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 08:47:42,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:42,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:42,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 08:47:42,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2021-08-29 08:47:43,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:43,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:43,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:43,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:43,261 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:43,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2021-08-29 08:47:43,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f504761a/6d729f4ace344d888187d574652a018d/FLAG9c322c514 [2021-08-29 08:47:43,816 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:43,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2021-08-29 08:47:43,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f504761a/6d729f4ace344d888187d574652a018d/FLAG9c322c514 [2021-08-29 08:47:44,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f504761a/6d729f4ace344d888187d574652a018d [2021-08-29 08:47:44,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:44,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:44,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:44,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:44,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:44,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae1fd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44, skipping insertion in model container [2021-08-29 08:47:44,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:44,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:44,351 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2021-08-29 08:47:44,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:44,368 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:44,411 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2021-08-29 08:47:44,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:44,470 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:44,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44 WrapperNode [2021-08-29 08:47:44,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:44,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:44,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:44,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:44,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:44,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:44,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:44,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:44,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:44,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:44,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:44,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:44,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (1/1) ... [2021-08-29 08:47:44,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:44,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:44,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:47:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 08:47:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 08:47:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 08:47:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 08:47:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 08:47:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:44,901 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:44,901 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:44,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:44 BoogieIcfgContainer [2021-08-29 08:47:44,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:44,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:44,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:44,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:44,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:44" (1/3) ... [2021-08-29 08:47:44,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46363a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:44, skipping insertion in model container [2021-08-29 08:47:44,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:44" (2/3) ... [2021-08-29 08:47:44,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46363a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:44, skipping insertion in model container [2021-08-29 08:47:44,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:44" (3/3) ... [2021-08-29 08:47:44,911 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2021-08-29 08:47:44,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:44,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:44,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:44,983 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:44,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 08:47:45,015 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:45,015 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:45,016 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2021-08-29 08:47:45,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:45,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392450512] [2021-08-29 08:47:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:45,033 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:45,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:45,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:45,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 08:47:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:45,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 08:47:45,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:45,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:45,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:45,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392450512] [2021-08-29 08:47:45,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392450512] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:45,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:45,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 08:47:45,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715930983] [2021-08-29 08:47:45,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:45,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:45,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:45,320 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:45,663 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2021-08-29 08:47:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:45,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 08:47:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:45,673 INFO L225 Difference]: With dead ends: 58 [2021-08-29 08:47:45,673 INFO L226 Difference]: Without dead ends: 27 [2021-08-29 08:47:45,676 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.11ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:45,678 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323.19ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:45,679 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 323.19ms Time] [2021-08-29 08:47:45,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-29 08:47:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-29 08:47:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-08-29 08:47:45,706 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2021-08-29 08:47:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:45,707 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-08-29 08:47:45,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-08-29 08:47:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:47:45,708 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:45,708 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:45,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:45,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:45,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2021-08-29 08:47:45,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:45,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53913490] [2021-08-29 08:47:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:45,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:45,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:45,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 08:47:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:46,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 08:47:46,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:46,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:46,231 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:46,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53913490] [2021-08-29 08:47:46,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53913490] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:46,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:46,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:46,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433614458] [2021-08-29 08:47:46,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:46,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:46,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:46,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:46,236 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:46,784 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2021-08-29 08:47:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:46,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 08:47:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:46,786 INFO L225 Difference]: With dead ends: 60 [2021-08-29 08:47:46,786 INFO L226 Difference]: Without dead ends: 50 [2021-08-29 08:47:46,787 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 97.38ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-29 08:47:46,788 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 419.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 480.33ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:46,788 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 226 Unknown, 0 Unchecked, 3.99ms Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 60 Unchecked, 480.33ms Time] [2021-08-29 08:47:46,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-29 08:47:46,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 26. [2021-08-29 08:47:46,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-08-29 08:47:46,798 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2021-08-29 08:47:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:46,799 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-08-29 08:47:46,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-08-29 08:47:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:47:46,800 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:46,800 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:46,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 08:47:47,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:47,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:47,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:47,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1311186430, now seen corresponding path program 1 times [2021-08-29 08:47:47,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:47,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455741913] [2021-08-29 08:47:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:47,014 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:47,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:47,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:47,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 08:47:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:47,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 08:47:47,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:47,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:47,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:47,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455741913] [2021-08-29 08:47:47,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455741913] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:47,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:47,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:47,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375280900] [2021-08-29 08:47:47,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:47,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:47,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:47,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:47,309 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:47,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:47,604 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-08-29 08:47:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:47,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 12 [2021-08-29 08:47:47,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:47,605 INFO L225 Difference]: With dead ends: 50 [2021-08-29 08:47:47,606 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:47:47,606 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 77.12ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-08-29 08:47:47,607 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 231.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 256.81ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:47,607 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 135 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 33 Unchecked, 256.81ms Time] [2021-08-29 08:47:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:47:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2021-08-29 08:47:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-08-29 08:47:47,611 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2021-08-29 08:47:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:47,611 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-08-29 08:47:47,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-08-29 08:47:47,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 08:47:47,612 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:47,613 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:47,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:47,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:47,822 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:47,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:47,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2021-08-29 08:47:47,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:47,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935048927] [2021-08-29 08:47:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:47,823 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:47,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:47,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 08:47:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:47,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-29 08:47:47,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:48,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:49,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:49,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935048927] [2021-08-29 08:47:49,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935048927] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:49,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:49,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-29 08:47:49,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024405336] [2021-08-29 08:47:49,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 08:47:49,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:49,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 08:47:49,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:49,202 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:50,181 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-08-29 08:47:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 08:47:50,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 08:47:50,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:50,185 INFO L225 Difference]: With dead ends: 34 [2021-08-29 08:47:50,185 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:50,185 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 464.93ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:50,186 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 920.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 972.07ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:50,187 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 972.07ms Time] [2021-08-29 08:47:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:50,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-08-29 08:47:50,191 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2021-08-29 08:47:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:50,192 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-08-29 08:47:50,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-08-29 08:47:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 08:47:50,193 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:50,193 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:50,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:50,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:50,397 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:50,398 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2021-08-29 08:47:50,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:50,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883616800] [2021-08-29 08:47:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:50,399 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:50,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:50,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:50,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 08:47:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:50,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 08:47:50,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:50,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:50,642 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:50,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883616800] [2021-08-29 08:47:50,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883616800] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:50,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:50,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 08:47:50,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977565955] [2021-08-29 08:47:50,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 08:47:50,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 08:47:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 08:47:50,646 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:50,762 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2021-08-29 08:47:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:50,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 08:47:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:50,764 INFO L225 Difference]: With dead ends: 46 [2021-08-29 08:47:50,764 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 08:47:50,770 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.79ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:50,771 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 96.47ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:50,771 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 24 Unchecked, 96.47ms Time] [2021-08-29 08:47:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 08:47:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2021-08-29 08:47:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-08-29 08:47:50,775 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2021-08-29 08:47:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:50,775 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-08-29 08:47:50,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-08-29 08:47:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 08:47:50,776 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:50,776 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:50,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:50,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:50,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:50,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2021-08-29 08:47:50,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:50,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803975788] [2021-08-29 08:47:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:50,989 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:50,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:50,990 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:50,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 08:47:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:51,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:47:51,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:51,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:51,285 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:51,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803975788] [2021-08-29 08:47:51,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803975788] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:51,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:51,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:51,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342600852] [2021-08-29 08:47:51,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:51,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:51,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:51,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:51,287 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:51,403 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-08-29 08:47:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 08:47:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 08:47:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:51,404 INFO L225 Difference]: With dead ends: 34 [2021-08-29 08:47:51,404 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:51,405 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 86.82ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-29 08:47:51,405 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 67.20ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:51,406 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 13 Unchecked, 67.20ms Time] [2021-08-29 08:47:51,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-08-29 08:47:51,409 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2021-08-29 08:47:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:51,409 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-08-29 08:47:51,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-08-29 08:47:51,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 08:47:51,410 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:51,410 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:51,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:51,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:51,625 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:51,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2021-08-29 08:47:51,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:51,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195220696] [2021-08-29 08:47:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:51,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:51,627 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) [2021-08-29 08:47:51,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 08:47:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:51,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-29 08:47:51,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:51,770 INFO L388 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 28 treesize of output 24 [2021-08-29 08:47:51,909 INFO L388 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 43 treesize of output 19 [2021-08-29 08:47:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:51,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:52,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:52,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195220696] [2021-08-29 08:47:52,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195220696] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:52,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:52,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-08-29 08:47:52,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058955625] [2021-08-29 08:47:52,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 08:47:52,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:52,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 08:47:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-29 08:47:52,094 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:52,193 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2021-08-29 08:47:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 08:47:52,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-29 08:47:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:52,194 INFO L225 Difference]: With dead ends: 25 [2021-08-29 08:47:52,194 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 08:47:52,194 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 105.54ms TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-08-29 08:47:52,195 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 59.13ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:52,195 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 8 Unchecked, 59.13ms Time] [2021-08-29 08:47:52,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 08:47:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 08:47:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-08-29 08:47:52,197 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2021-08-29 08:47:52,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:52,197 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-08-29 08:47:52,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-08-29 08:47:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-29 08:47:52,198 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:52,198 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:52,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:52,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:52,399 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:52,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:52,400 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2021-08-29 08:47:52,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:52,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843154162] [2021-08-29 08:47:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:52,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:52,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:52,402 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:52,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-29 08:47:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:52,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-29 08:47:52,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:52,517 INFO L388 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 28 treesize of output 24 [2021-08-29 08:47:52,632 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-08-29 08:47:52,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 45 [2021-08-29 08:47:52,880 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-29 08:47:52,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 28 [2021-08-29 08:47:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:53,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:53,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:53,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843154162] [2021-08-29 08:47:53,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843154162] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:53,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:53,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 18 [2021-08-29 08:47:53,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347726439] [2021-08-29 08:47:53,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-29 08:47:53,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-29 08:47:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-08-29 08:47:53,525 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:53,597 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-08-29 08:47:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-29 08:47:53,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-08-29 08:47:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:53,598 INFO L225 Difference]: With dead ends: 22 [2021-08-29 08:47:53,598 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 08:47:53,598 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 485.57ms TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-08-29 08:47:53,599 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 20.19ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:53,599 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 41 Unchecked, 20.19ms Time] [2021-08-29 08:47:53,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 08:47:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 08:47:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:53,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 08:47:53,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-08-29 08:47:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:53,600 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 08:47:53,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 08:47:53,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 08:47:53,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:53,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:53,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:53,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 08:47:53,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:53,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:53,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:53,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:53,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:53,989 INFO L854 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short12| (exists ((|v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22| (_ BitVec 32)) (|v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= .cse0 .cse1)))) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start_ceil_float_~ix~0 (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 08:47:53,989 INFO L858 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L861 garLoopResultBuilder]: At program point L87(lines 70 88) the Hoare annotation is: true [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:53,990 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L854 garLoopResultBuilder]: At program point L67(lines 58 68) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short12| (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start_ceil_float_~ix~0 (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))) [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L854 garLoopResultBuilder]: At program point L55(lines 15 56) the Hoare annotation is: (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start_ceil_float_~ix~0 (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22| (_ BitVec 32)) (|v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_ceil_float_#res|) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= .cse0 .cse1))))) [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:53,991 INFO L858 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:53,995 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:54,002 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,006 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,007 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,007 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,010 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,010 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,011 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,011 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,011 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,011 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,011 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,012 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,012 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,012 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,013 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,013 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,014 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,015 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:54 BoogieIcfgContainer [2021-08-29 08:47:54,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:54,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:54,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:54,019 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:54,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:44" (3/4) ... [2021-08-29 08:47:54,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 08:47:54,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-08-29 08:47:54,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 08:47:54,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:54,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:54,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22 : bv32, v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][22:0]) == \result && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32]) [2021-08-29 08:47:54,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && (\exists v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22 : bv32, v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][22:0]) == x && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:54,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == 0bv32 [2021-08-29 08:47:54,069 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 08:47:54,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:54,070 INFO L158 Benchmark]: Toolchain (without parser) took 9859.36ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.9MB in the beginning and 53.5MB in the end (delta: -13.6MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:54,070 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:54,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.38ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 44.8MB in the end (delta: -5.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 08:47:54,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.71ms. Allocated memory is still 60.8MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:54,071 INFO L158 Benchmark]: Boogie Preprocessor took 55.65ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:54,071 INFO L158 Benchmark]: RCFGBuilder took 324.60ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 30.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:54,071 INFO L158 Benchmark]: TraceAbstraction took 9113.00ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 25.1MB in the end (delta: 5.2MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2021-08-29 08:47:54,072 INFO L158 Benchmark]: Witness Printer took 50.84ms. Allocated memory is still 73.4MB. Free memory was 25.1MB in the beginning and 53.5MB in the end (delta: -28.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:54,073 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 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.38ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 44.8MB in the end (delta: -5.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.71ms. Allocated memory is still 60.8MB. Free memory was 44.8MB in the beginning and 43.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.65ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.60ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 30.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9113.00ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 25.1MB in the end (delta: 5.2MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 50.84ms. Allocated memory is still 73.4MB. Free memory was 25.1MB in the beginning and 53.5MB in the end (delta: -28.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9021.37ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 25.08ms, AutomataDifference: 2649.58ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 184.87ms, InitialAbstractionConstructionTime: 9.64ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 2275.39ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2075.19ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 179 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 471 mSolverCounterSat, 9.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 170 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1362.28ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 39.34ms AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 214 HoareAnnotationTreeSize, 5 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 65.86ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 112.85ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 64.65ms SsaConstructionTime, 485.38ms SatisfiabilityAnalysisTime, 3630.66ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 222 ConstructedInterpolants, 50 QuantifiedInterpolants, 1935 SizeOfPredicates, 50 NumberOfNonLiveVariables, 422 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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: 58]: Loop Invariant [2021-08-29 08:47:54,084 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,085 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == 0bv32 - InvariantResult [Line: 18]: Loop Invariant [2021-08-29 08:47:54,086 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,086 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant [2021-08-29 08:47:54,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,088 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,090 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && (\exists v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22 : bv32, v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][22:0]) == x && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2021-08-29 08:47:54,091 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,093 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:54,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,094 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,094 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] [2021-08-29 08:47:54,094 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16,QUANTIFIED] [2021-08-29 08:47:54,094 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22,QUANTIFIED] Derived loop invariant: ((((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ix == 0bv32) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22 : bv32, v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32][22:0]) == \result && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#sf_u~0.base_16][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_float_~#gf_u~0.base_22][0bv32]) RESULT: Ultimate proved your program to be correct! [2021-08-29 08:47:54,124 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...