./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0873b.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 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:37:30,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:37:30,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:37:30,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:37:30,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:37:30,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:37:30,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:37:30,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:37:30,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:37:30,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:37:30,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:37:30,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:37:30,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:37:30,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:37:30,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:37:30,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:37:30,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:37:30,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:37:30,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:37:30,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:37:30,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:37:30,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:37:30,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:37:30,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:37:30,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:37:30,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:37:30,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:37:30,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:37:30,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:37:30,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:37:30,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:37:30,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:37:30,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:37:30,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:37:30,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:37:30,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:37:30,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:37:30,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:37:30,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:37:30,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:37:30,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:37:30,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:37:30,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:37:30,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:37:30,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:37:30,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:37:30,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:37:30,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:37:30,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:37:30,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:37:30,462 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:37:30,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:37:30,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:37:30,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:37:30,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:37:30,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:37:30,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:37:30,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:37:30,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:37:30,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:37:30,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:37:30,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:37:30,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:37:30,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:37:30,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2021-12-17 07:37:30,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:37:30,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:37:30,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:37:30,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:37:30,665 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:37:30,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2021-12-17 07:37:30,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297ef710d/b5a9b9e788864e0197551aa7f1cbbe12/FLAG9f217c411 [2021-12-17 07:37:31,141 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:37:31,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2021-12-17 07:37:31,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297ef710d/b5a9b9e788864e0197551aa7f1cbbe12/FLAG9f217c411 [2021-12-17 07:37:31,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/297ef710d/b5a9b9e788864e0197551aa7f1cbbe12 [2021-12-17 07:37:31,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:37:31,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:37:31,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:37:31,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:37:31,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:37:31,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:37:31" (1/1) ... [2021-12-17 07:37:31,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7b4806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:31, skipping insertion in model container [2021-12-17 07:37:31,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:37:31" (1/1) ... [2021-12-17 07:37:31,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:37:31,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:37:31,406 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$49(StandardFunctionHandler.java:414) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1633) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-17 07:37:31,415 INFO L158 Benchmark]: Toolchain (without parser) took 224.19ms. Allocated memory is still 130.0MB. Free memory was 102.5MB in the beginning and 100.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:37:31,416 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:37:31,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.99ms. Allocated memory is still 130.0MB. Free memory was 102.5MB in the beginning and 100.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:37:31,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.99ms. Allocated memory is still 130.0MB. Free memory was 102.5MB in the beginning and 100.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0873b.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 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:37:33,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:37:33,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:37:33,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:37:33,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:37:33,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:37:33,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:37:33,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:37:33,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:37:33,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:37:33,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:37:33,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:37:33,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:37:33,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:37:33,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:37:33,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:37:33,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:37:33,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:37:33,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:37:33,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:37:33,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:37:33,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:37:33,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:37:33,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:37:33,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:37:33,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:37:33,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:37:33,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:37:33,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:37:33,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:37:33,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:37:33,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:37:33,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:37:33,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:37:33,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:37:33,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:37:33,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:37:33,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:37:33,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:37:33,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:37:33,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:37:33,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:37:33,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:37:33,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:37:33,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:37:33,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:37:33,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:37:33,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:37:33,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:37:33,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:37:33,249 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:37:33,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:37:33,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:37:33,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:37:33,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:37:33,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:37:33,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:37:33,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:37:33,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:37:33,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:37:33,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:37:33,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:37:33,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:37:33,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2021-12-17 07:37:33,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:37:33,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:37:33,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:37:33,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:37:33,693 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:37:33,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2021-12-17 07:37:33,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb73635e/fe67e31ead6f4ffe88b8e165f56c2ddf/FLAG409ffd712 [2021-12-17 07:37:34,263 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:37:34,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2021-12-17 07:37:34,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb73635e/fe67e31ead6f4ffe88b8e165f56c2ddf/FLAG409ffd712 [2021-12-17 07:37:34,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb73635e/fe67e31ead6f4ffe88b8e165f56c2ddf [2021-12-17 07:37:34,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:37:34,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:37:34,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:37:34,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:37:34,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:37:34,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:37:34" (1/1) ... [2021-12-17 07:37:34,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a14a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:34, skipping insertion in model container [2021-12-17 07:37:34,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:37:34" (1/1) ... [2021-12-17 07:37:34,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:37:34,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:37:34,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2021-12-17 07:37:34,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:37:34,939 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:37:35,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2021-12-17 07:37:35,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:37:35,078 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:37:35,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35 WrapperNode [2021-12-17 07:37:35,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:37:35,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:37:35,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:37:35,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:37:35,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,136 INFO L137 Inliner]: procedures = 24, calls = 158, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 754 [2021-12-17 07:37:35,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:37:35,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:37:35,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:37:35,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:37:35,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:37:35,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:37:35,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:37:35,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:37:35,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (1/1) ... [2021-12-17 07:37:35,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:37:35,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:37:35,283 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) [2021-12-17 07:37:35,328 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 [2021-12-17 07:37:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:37:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-17 07:37:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-12-17 07:37:35,351 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-12-17 07:37:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:37:35,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:37:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:37:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:37:35,471 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:37:35,473 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:38:34,999 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:38:35,007 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:38:35,010 INFO L301 CfgBuilder]: Removed 58 assume(true) statements. [2021-12-17 07:38:35,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:38:35 BoogieIcfgContainer [2021-12-17 07:38:35,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:38:35,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:38:35,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:38:35,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:38:35,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:37:34" (1/3) ... [2021-12-17 07:38:35,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28da2463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:38:35, skipping insertion in model container [2021-12-17 07:38:35,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:37:35" (2/3) ... [2021-12-17 07:38:35,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28da2463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:38:35, skipping insertion in model container [2021-12-17 07:38:35,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:38:35" (3/3) ... [2021-12-17 07:38:35,017 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873b.c [2021-12-17 07:38:35,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:38:35,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:38:35,054 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:38:35,059 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:38:35,059 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:38:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 196 states have (on average 1.7091836734693877) internal successors, (335), 197 states have internal predecessors, (335), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:38:35,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-17 07:38:35,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:38:35,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:38:35,078 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:38:35,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:38:35,082 INFO L85 PathProgramCache]: Analyzing trace with hash -164815362, now seen corresponding path program 1 times [2021-12-17 07:38:35,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:38:35,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478236762] [2021-12-17 07:38:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:38:35,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:38:35,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:38:35,122 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) [2021-12-17 07:38:35,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:38:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:38:35,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:38:35,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:38:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:38:35,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:38:35,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:38:35,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478236762] [2021-12-17 07:38:35,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478236762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:38:35,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:38:35,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:38:35,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849301403] [2021-12-17 07:38:35,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:38:35,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:38:35,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:38:35,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:38:35,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:38:35,712 INFO L87 Difference]: Start difference. First operand has 202 states, 196 states have (on average 1.7091836734693877) internal successors, (335), 197 states have internal predecessors, (335), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-17 07:38:35,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:38:35,748 INFO L93 Difference]: Finished difference Result 402 states and 683 transitions. [2021-12-17 07:38:35,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:38:35,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-12-17 07:38:35,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:38:35,756 INFO L225 Difference]: With dead ends: 402 [2021-12-17 07:38:35,756 INFO L226 Difference]: Without dead ends: 199 [2021-12-17 07:38:35,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:38:35,761 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:38:35,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:38:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-17 07:38:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-12-17 07:38:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.407216494845361) internal successors, (273), 194 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:38:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 279 transitions. [2021-12-17 07:38:35,816 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 279 transitions. Word has length 9 [2021-12-17 07:38:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:38:35,817 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 279 transitions. [2021-12-17 07:38:35,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-12-17 07:38:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 279 transitions. [2021-12-17 07:38:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:38:35,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:38:35,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:38:35,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 07:38:36,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:38:36,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:38:36,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:38:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1290913793, now seen corresponding path program 1 times [2021-12-17 07:38:36,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:38:36,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599624787] [2021-12-17 07:38:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:38:36,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:38:36,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:38:36,040 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) [2021-12-17 07:38:36,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:38:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:38:36,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:38:36,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:38:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:38:38,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:38:38,402 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:38:38,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599624787] [2021-12-17 07:38:38,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599624787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:38:38,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:38:38,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:38:38,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204331006] [2021-12-17 07:38:38,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:38:38,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:38:38,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:38:38,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:38:38,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:38:38,406 INFO L87 Difference]: Start difference. First operand 199 states and 279 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:38:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:38:38,450 INFO L93 Difference]: Finished difference Result 203 states and 282 transitions. [2021-12-17 07:38:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:38:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:38:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:38:38,452 INFO L225 Difference]: With dead ends: 203 [2021-12-17 07:38:38,452 INFO L226 Difference]: Without dead ends: 199 [2021-12-17 07:38:38,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:38:38,454 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:38:38,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1053 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 46 Unchecked, 0.0s Time] [2021-12-17 07:38:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-17 07:38:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-12-17 07:38:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.402061855670103) internal successors, (272), 194 states have internal predecessors, (272), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:38:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 278 transitions. [2021-12-17 07:38:38,470 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 278 transitions. Word has length 11 [2021-12-17 07:38:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:38:38,470 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 278 transitions. [2021-12-17 07:38:38,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:38:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 278 transitions. [2021-12-17 07:38:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 07:38:38,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:38:38,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:38:38,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 07:38:38,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:38:38,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:38:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:38:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1358928644, now seen corresponding path program 1 times [2021-12-17 07:38:38,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:38:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961187089] [2021-12-17 07:38:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:38:38,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:38:38,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:38:38,678 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) [2021-12-17 07:38:38,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 07:38:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:38:38,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 07:38:38,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:38:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:38:40,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:38:40,699 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:38:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961187089] [2021-12-17 07:38:40,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961187089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:38:40,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:38:40,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:38:40,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173141754] [2021-12-17 07:38:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:38:40,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:38:40,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:38:40,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:38:40,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:38:40,701 INFO L87 Difference]: Start difference. First operand 199 states and 278 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:38:44,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:47,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:50,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:52,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:56,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:58,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:38:59,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:01,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:03,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:06,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:08,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:11,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:13,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:14,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:17,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:19,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:21,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:23,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:26,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:27,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:34,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:36,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:38,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:41,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:43,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:45,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:48,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:50,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:52,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:53,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:56,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:39:58,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:00,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:03,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:05,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:07,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:09,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:11,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:13,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:16,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:18,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:20,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:23,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:24,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:29,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:31,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:33,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:34,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:37,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:39,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:41,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:43,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:45,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:47,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:49,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:51,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:53,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:55,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:40:58,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:00,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:02,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:04,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:06,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:08,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:10,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:12,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:14,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-17 07:41:14,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:14,352 INFO L93 Difference]: Finished difference Result 221 states and 303 transitions. [2021-12-17 07:41:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:41:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-17 07:41:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:14,397 INFO L225 Difference]: With dead ends: 221 [2021-12-17 07:41:14,397 INFO L226 Difference]: Without dead ends: 217 [2021-12-17 07:41:14,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 07:41:14,398 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 148 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 56 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 56 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.7s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:14,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 831 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 56 Unknown, 0 Unchecked, 152.7s Time] [2021-12-17 07:41:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-17 07:41:14,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 199. [2021-12-17 07:41:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.3917525773195876) internal successors, (270), 194 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 276 transitions. [2021-12-17 07:41:14,415 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 276 transitions. Word has length 13 [2021-12-17 07:41:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:14,416 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 276 transitions. [2021-12-17 07:41:14,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 276 transitions. [2021-12-17 07:41:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-17 07:41:14,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:14,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:14,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-17 07:41:14,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:14,623 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1358869062, now seen corresponding path program 1 times [2021-12-17 07:41:14,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:14,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897391529] [2021-12-17 07:41:14,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:14,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:14,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:14,626 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) [2021-12-17 07:41:14,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 07:41:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:14,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-17 07:41:14,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 07:41:15,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-12-17 07:41:19,442 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 07:41:19,443 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 46 treesize of output 44 [2021-12-17 07:41:20,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-12-17 07:41:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:27,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:27,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:27,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897391529] [2021-12-17 07:41:27,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897391529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:27,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:27,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:41:27,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444271411] [2021-12-17 07:41:27,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:27,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:41:27,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:27,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:41:27,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:41:27,397 INFO L87 Difference]: Start difference. First operand 199 states and 276 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:27,403 INFO L93 Difference]: Finished difference Result 203 states and 279 transitions. [2021-12-17 07:41:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:41:27,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-17 07:41:27,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:27,405 INFO L225 Difference]: With dead ends: 203 [2021-12-17 07:41:27,405 INFO L226 Difference]: Without dead ends: 198 [2021-12-17 07:41:27,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:41:27,406 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:27,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1197 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 150 Unchecked, 0.0s Time] [2021-12-17 07:41:27,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-12-17 07:41:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-12-17 07:41:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.38860103626943) internal successors, (268), 193 states have internal predecessors, (268), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2021-12-17 07:41:27,414 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 274 transitions. Word has length 13 [2021-12-17 07:41:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:27,415 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 274 transitions. [2021-12-17 07:41:27,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 274 transitions. [2021-12-17 07:41:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-17 07:41:27,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:27,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:27,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:27,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:27,629 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:27,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:27,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1605803784, now seen corresponding path program 1 times [2021-12-17 07:41:27,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:27,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843842212] [2021-12-17 07:41:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:27,631 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:27,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:27,632 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) [2021-12-17 07:41:27,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 07:41:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:28,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 07:41:28,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:31,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:31,007 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:31,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843842212] [2021-12-17 07:41:31,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843842212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:31,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:31,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:41:31,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226574837] [2021-12-17 07:41:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:31,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 07:41:31,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 07:41:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:41:31,008 INFO L87 Difference]: Start difference. First operand 198 states and 274 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:31,013 INFO L93 Difference]: Finished difference Result 380 states and 525 transitions. [2021-12-17 07:41:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 07:41:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-17 07:41:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:31,014 INFO L225 Difference]: With dead ends: 380 [2021-12-17 07:41:31,014 INFO L226 Difference]: Without dead ends: 198 [2021-12-17 07:41:31,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:41:31,021 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:31,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 789 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-17 07:41:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-12-17 07:41:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-12-17 07:41:31,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.383419689119171) internal successors, (267), 193 states have internal predecessors, (267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 273 transitions. [2021-12-17 07:41:31,041 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 273 transitions. Word has length 17 [2021-12-17 07:41:31,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:31,041 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 273 transitions. [2021-12-17 07:41:31,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 273 transitions. [2021-12-17 07:41:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-17 07:41:31,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:31,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:31,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:31,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:31,260 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2066854158, now seen corresponding path program 1 times [2021-12-17 07:41:31,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:31,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203557237] [2021-12-17 07:41:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:31,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:31,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:31,271 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) [2021-12-17 07:41:31,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 07:41:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:31,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:41:31,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:35,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:35,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:35,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203557237] [2021-12-17 07:41:35,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203557237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:35,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:35,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:41:35,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793955567] [2021-12-17 07:41:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:35,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:41:35,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:41:35,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:35,379 INFO L87 Difference]: Start difference. First operand 198 states and 273 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:35,386 INFO L93 Difference]: Finished difference Result 394 states and 542 transitions. [2021-12-17 07:41:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:41:35,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-17 07:41:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:35,387 INFO L225 Difference]: With dead ends: 394 [2021-12-17 07:41:35,387 INFO L226 Difference]: Without dead ends: 220 [2021-12-17 07:41:35,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:35,389 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 26 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:35,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 1024 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 45 Unchecked, 0.0s Time] [2021-12-17 07:41:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-12-17 07:41:35,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 200. [2021-12-17 07:41:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 276 transitions. [2021-12-17 07:41:35,396 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 276 transitions. Word has length 18 [2021-12-17 07:41:35,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:35,396 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 276 transitions. [2021-12-17 07:41:35,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 276 transitions. [2021-12-17 07:41:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 07:41:35,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:35,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:35,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:35,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:35,613 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 736043008, now seen corresponding path program 1 times [2021-12-17 07:41:35,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:35,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087353680] [2021-12-17 07:41:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:35,614 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:35,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:35,615 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) [2021-12-17 07:41:35,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-17 07:41:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:36,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:41:36,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:39,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:39,311 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:39,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087353680] [2021-12-17 07:41:39,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087353680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:39,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:39,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:41:39,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776990649] [2021-12-17 07:41:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:41:39,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:41:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:39,313 INFO L87 Difference]: Start difference. First operand 200 states and 276 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:39,318 INFO L93 Difference]: Finished difference Result 335 states and 453 transitions. [2021-12-17 07:41:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:41:39,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-17 07:41:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:39,319 INFO L225 Difference]: With dead ends: 335 [2021-12-17 07:41:39,319 INFO L226 Difference]: Without dead ends: 148 [2021-12-17 07:41:39,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:39,321 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:39,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 714 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2021-12-17 07:41:39,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-17 07:41:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-12-17 07:41:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.2937062937062938) internal successors, (185), 143 states have internal predecessors, (185), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 191 transitions. [2021-12-17 07:41:39,328 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 191 transitions. Word has length 19 [2021-12-17 07:41:39,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:39,329 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 191 transitions. [2021-12-17 07:41:39,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:39,329 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 191 transitions. [2021-12-17 07:41:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 07:41:39,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:39,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:39,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:39,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:39,546 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:39,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:39,547 INFO L85 PathProgramCache]: Analyzing trace with hash 595460900, now seen corresponding path program 1 times [2021-12-17 07:41:39,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:39,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618624343] [2021-12-17 07:41:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:39,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:39,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:39,549 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) [2021-12-17 07:41:39,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-17 07:41:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:39,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 07:41:39,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:44,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:44,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:44,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618624343] [2021-12-17 07:41:44,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618624343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:44,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:44,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:41:44,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133342015] [2021-12-17 07:41:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:44,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 07:41:44,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 07:41:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:41:44,055 INFO L87 Difference]: Start difference. First operand 148 states and 191 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:44,059 INFO L93 Difference]: Finished difference Result 157 states and 198 transitions. [2021-12-17 07:41:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 07:41:44,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-17 07:41:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:44,060 INFO L225 Difference]: With dead ends: 157 [2021-12-17 07:41:44,060 INFO L226 Difference]: Without dead ends: 152 [2021-12-17 07:41:44,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:41:44,061 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 134 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:44,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 382 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-17 07:41:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-17 07:41:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2021-12-17 07:41:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.2867132867132867) internal successors, (184), 143 states have internal predecessors, (184), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 190 transitions. [2021-12-17 07:41:44,067 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 190 transitions. Word has length 20 [2021-12-17 07:41:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:44,068 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 190 transitions. [2021-12-17 07:41:44,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 190 transitions. [2021-12-17 07:41:44,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 07:41:44,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:44,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:44,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:44,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:44,283 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:44,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:44,283 INFO L85 PathProgramCache]: Analyzing trace with hash 597307942, now seen corresponding path program 1 times [2021-12-17 07:41:44,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:44,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437986874] [2021-12-17 07:41:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:44,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:44,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:44,285 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:41:44,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-17 07:41:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:44,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-17 07:41:44,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:44,964 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 15 treesize of output 13 [2021-12-17 07:41:49,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:49,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:49,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:49,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437986874] [2021-12-17 07:41:49,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437986874] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:49,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:49,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:41:49,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718932511] [2021-12-17 07:41:49,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:49,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:41:49,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:49,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:41:49,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:49,959 INFO L87 Difference]: Start difference. First operand 148 states and 190 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:49,963 INFO L93 Difference]: Finished difference Result 152 states and 193 transitions. [2021-12-17 07:41:49,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:41:49,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-17 07:41:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:49,964 INFO L225 Difference]: With dead ends: 152 [2021-12-17 07:41:49,964 INFO L226 Difference]: Without dead ends: 141 [2021-12-17 07:41:49,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:41:49,965 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 8 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:49,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 661 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2021-12-17 07:41:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-17 07:41:49,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-12-17 07:41:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 136 states have (on average 1.2794117647058822) internal successors, (174), 136 states have internal predecessors, (174), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 07:41:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2021-12-17 07:41:49,969 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 20 [2021-12-17 07:41:49,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:49,970 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2021-12-17 07:41:49,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:41:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2021-12-17 07:41:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 07:41:49,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:41:49,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:49,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:50,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:50,188 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:41:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:41:50,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1703332610, now seen corresponding path program 1 times [2021-12-17 07:41:50,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:41:50,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735431744] [2021-12-17 07:41:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:41:50,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:41:50,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:41:50,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:41:50,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-17 07:41:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:41:51,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 07:41:51,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:41:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:41:54,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:41:54,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:41:54,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735431744] [2021-12-17 07:41:54,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735431744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:41:54,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:41:54,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:41:54,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397787044] [2021-12-17 07:41:54,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:41:54,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:41:54,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:41:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:41:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:41:54,953 INFO L87 Difference]: Start difference. First operand 141 states and 180 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) [2021-12-17 07:41:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:41:55,004 INFO L93 Difference]: Finished difference Result 141 states and 180 transitions. [2021-12-17 07:41:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:41:55,005 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 24 [2021-12-17 07:41:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:41:55,006 INFO L225 Difference]: With dead ends: 141 [2021-12-17 07:41:55,006 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:41:55,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:41:55,006 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:41:55,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2021-12-17 07:41:55,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:41:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:41:55,007 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) [2021-12-17 07:41:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:41:55,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-12-17 07:41:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:41:55,007 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:41:55,007 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) [2021-12-17 07:41:55,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:41:55,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:41:55,009 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:41:55,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-17 07:41:55,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:41:55,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 36) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 19 38) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 31 36) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point copysign_doubleFINAL(lines 19 38) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point copysign_doubleEXIT(lines 19 38) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L861 garLoopResultBuilder]: At program point copysign_doubleENTRY(lines 19 38) the Hoare annotation is: true [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 38) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L858 garLoopResultBuilder]: For program point L531-1(lines 531 536) no Hoare annotation was computed. [2021-12-17 07:41:57,402 INFO L854 garLoopResultBuilder]: At program point L531-2(lines 531 536) the Hoare annotation is: false [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L531-3(lines 531 536) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 367) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 169) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L168-2(lines 168 169) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 70) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 406) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 309) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L367-2(line 367) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 103 108) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L854 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: false [2021-12-17 07:41:57,403 INFO L854 garLoopResultBuilder]: At program point L103-2(lines 103 108) the Hoare annotation is: false [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L103-3(lines 97 205) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 501) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 467 472) no Hoare annotation was computed. [2021-12-17 07:41:57,403 INFO L854 garLoopResultBuilder]: At program point L467-2(lines 467 472) the Hoare annotation is: false [2021-12-17 07:41:57,403 INFO L858 garLoopResultBuilder]: For program point L467-3(lines 467 472) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 79) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 304) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L270-1(lines 270 275) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L854 garLoopResultBuilder]: At program point L270-2(lines 270 275) the Hoare annotation is: (and (= ~one_pow~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((currentRoundingMode RoundingMode)) (let ((.cse0 (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)))) (and (= |ULTIMATE.start___ieee754_pow_~y#1| (fp.div currentRoundingMode .cse0 (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_pow_~x#1| .cse0))))) [2021-12-17 07:41:57,404 INFO L854 garLoopResultBuilder]: At program point L204(lines 97 205) the Hoare annotation is: false [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 72 77) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L854 garLoopResultBuilder]: At program point L72-2(lines 72 77) the Hoare annotation is: false [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L72-3(lines 72 77) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 510) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L503-2(lines 496 510) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 351) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 309) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L338-2(lines 263 562) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 350) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 308) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 208 212) no Hoare annotation was computed. [2021-12-17 07:41:57,404 INFO L854 garLoopResultBuilder]: At program point L208-2(lines 208 212) the Hoare annotation is: false [2021-12-17 07:41:57,404 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 381 474) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 342) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L374-1(lines 374 379) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L407-2(lines 407 412) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L854 garLoopResultBuilder]: At program point L374-2(lines 374 379) the Hoare annotation is: false [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L341-2(lines 339 350) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L374-3(lines 374 379) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 508) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L276(lines 276 281) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L276-1(lines 263 562) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L276-2(lines 276 281) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 348) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 192) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 46 51) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L854 garLoopResultBuilder]: At program point L46-2(lines 46 51) the Hoare annotation is: false [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L46-3(lines 46 51) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 443 448) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L854 garLoopResultBuilder]: At program point L443-2(lines 443 448) the Hoare annotation is: false [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 347) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L443-3(lines 443 448) no Hoare annotation was computed. [2021-12-17 07:41:57,405 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 478) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 478) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 218) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 191) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 206 220) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 218) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 119) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 157) the Hoare annotation is: false [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 84) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 114 119) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 147 157) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 580) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 347) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L313(lines 313 334) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 118) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L854 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: false [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L314(lines 314 321) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 190) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-12-17 07:41:57,406 INFO L858 garLoopResultBuilder]: For program point L546-1(lines 546 550) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L854 garLoopResultBuilder]: At program point L546-2(lines 546 550) the Hoare annotation is: false [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L546-3(lines 546 550) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 320) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L854 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: false [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 481 486) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L854 garLoopResultBuilder]: At program point L481-2(lines 481 486) the Hoare annotation is: false [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L481-3(lines 481 486) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L515(lines 515 529) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L515-2(lines 515 529) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L317(lines 317 320) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 190) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 65) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L53-2(lines 44 94) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L861 garLoopResultBuilder]: At program point L582(lines 564 583) the Hoare annotation is: true [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L318(line 318) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 286) no Hoare annotation was computed. [2021-12-17 07:41:57,407 INFO L858 garLoopResultBuilder]: For program point L318-2(line 318) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L854 garLoopResultBuilder]: At program point L219(lines 206 220) the Hoare annotation is: false [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 187) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L186-2(lines 186 187) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 55) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 92) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 92) the Hoare annotation is: false [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 92) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 393) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L418-1(lines 418 423) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L385-1(lines 385 393) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L854 garLoopResultBuilder]: At program point L418-2(lines 418 423) the Hoare annotation is: false [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L418-3(lines 418 423) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L320(line 320) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L320-2(line 320) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 133) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L122-2(lines 122 133) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 560) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L519-1(lines 519 524) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L854 garLoopResultBuilder]: At program point L519-2(lines 519 524) the Hoare annotation is: false [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L519-3(lines 519 524) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 294) no Hoare annotation was computed. [2021-12-17 07:41:57,408 INFO L854 garLoopResultBuilder]: At program point L123-2(lines 123 127) the Hoare annotation is: false [2021-12-17 07:41:57,408 INFO L858 garLoopResultBuilder]: For program point L123-3(lines 123 127) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L854 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: false [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L388-1(lines 388 392) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 327) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L854 garLoopResultBuilder]: At program point L388-2(lines 388 392) the Hoare annotation is: false [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 455 460) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L854 garLoopResultBuilder]: At program point L455-2(lines 455 460) the Hoare annotation is: false [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 474) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L455-3(lines 455 460) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 326) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 293) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L356-2(lines 356 474) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L555-1(lines 555 560) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L854 garLoopResultBuilder]: At program point L555-2(lines 555 560) the Hoare annotation is: false [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L555-3(lines 552 560) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 362) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L357-2(lines 356 381) no Hoare annotation was computed. [2021-12-17 07:41:57,409 INFO L854 garLoopResultBuilder]: At program point L93(lines 44 94) the Hoare annotation is: false [2021-12-17 07:41:57,409 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 490 495) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L854 garLoopResultBuilder]: At program point L490-2(lines 490 495) the Hoare annotation is: false [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L490-3(lines 263 562) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 359) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L854 garLoopResultBuilder]: At program point L160-2(lines 160 176) the Hoare annotation is: false [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L160-3(lines 97 205) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L359(line 359) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L359-2(line 359) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L128-2(lines 128 129) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L854 garLoopResultBuilder]: At program point L128-3(lines 128 129) the Hoare annotation is: false [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L128-4(lines 128 129) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L426-1(lines 426 431) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 361) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L854 garLoopResultBuilder]: At program point L426-2(lines 426 431) the Hoare annotation is: false [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L426-3(lines 426 431) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 196) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L195-2(lines 195 196) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L526-2(lines 526 527) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L361(line 361) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 329) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L361-2(line 361) no Hoare annotation was computed. [2021-12-17 07:41:57,410 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 172) no Hoare annotation was computed. [2021-12-17 07:41:57,411 INFO L858 garLoopResultBuilder]: For program point L163-2(lines 163 172) no Hoare annotation was computed. [2021-12-17 07:41:57,411 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 311) no Hoare annotation was computed. [2021-12-17 07:41:57,411 INFO L858 garLoopResultBuilder]: For program point L296-1(lines 263 562) no Hoare annotation was computed. [2021-12-17 07:41:57,411 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:41:57,411 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L854 garLoopResultBuilder]: At program point L561(lines 263 562) the Hoare annotation is: (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 1.0))) (and (= |ULTIMATE.start___ieee754_pow_#res#1| .cse0) (= ~one_pow~0 .cse0))) [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 333) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 310) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 166) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 203) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 203) the Hoare annotation is: false [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L165-2(lines 165 166) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L198-3(lines 198 203) no Hoare annotation was computed. [2021-12-17 07:41:57,413 INFO L858 garLoopResultBuilder]: For program point L331(lines 331 332) no Hoare annotation was computed. [2021-12-17 07:41:57,414 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 502) no Hoare annotation was computed. [2021-12-17 07:41:57,414 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2021-12-17 07:41:57,414 INFO L858 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2021-12-17 07:41:57,414 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 310) no Hoare annotation was computed. [2021-12-17 07:41:57,414 INFO L858 garLoopResultBuilder]: For program point L365-2(line 365) no Hoare annotation was computed. [2021-12-17 07:41:57,416 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:41:57,417 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:41:57,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:41:57 BoogieIcfgContainer [2021-12-17 07:41:57,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:41:57,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:41:57,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:41:57,439 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:41:57,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:38:35" (3/4) ... [2021-12-17 07:41:57,441 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:41:57,446 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_double [2021-12-17 07:41:57,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-17 07:41:57,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-17 07:41:57,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:41:57,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:41:57,478 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) [2021-12-17 07:41:57,514 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:41:57,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:41:57,515 INFO L158 Benchmark]: Toolchain (without parser) took 262888.76ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 53.0MB in the beginning and 52.1MB in the end (delta: 857.0kB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,515 INFO L158 Benchmark]: CDTParser took 2.29ms. Allocated memory is still 71.3MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:41:57,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.45ms. Allocated memory is still 71.3MB. Free memory was 52.9MB in the beginning and 42.4MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 37.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,518 INFO L158 Benchmark]: Boogie Preprocessor took 64.90ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 33.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,520 INFO L158 Benchmark]: RCFGBuilder took 59808.56ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 33.1MB in the beginning and 71.2MB in the end (delta: -38.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,520 INFO L158 Benchmark]: TraceAbstraction took 202424.96ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 70.0MB in the end (delta: 656.7kB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,520 INFO L158 Benchmark]: Witness Printer took 76.24ms. Allocated memory is still 104.9MB. Free memory was 70.0MB in the beginning and 52.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 07:41:57,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.29ms. Allocated memory is still 71.3MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.45ms. Allocated memory is still 71.3MB. Free memory was 52.9MB in the beginning and 42.4MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 37.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.90ms. Allocated memory is still 71.3MB. Free memory was 37.8MB in the beginning and 33.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 59808.56ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 33.1MB in the beginning and 71.2MB in the end (delta: -38.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 202424.96ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 70.0MB in the end (delta: 656.7kB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * Witness Printer took 76.24ms. Allocated memory is still 104.9MB. Free memory was 70.0MB in the beginning and 52.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 578]: 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 2 procedures, 202 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 202.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 153.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 56 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 152.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 6958 SdHoareTripleChecker+Invalid, 146.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 349 IncrementalHoareTripleChecker+Unchecked, 4783 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2175 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=0, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 63 PreInvPairs, 66 NumberOfFragments, 67 HoareAnnotationTreeSize, 63 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 40.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 154 ConstructedInterpolants, 74 QuantifiedInterpolants, 1685 SizeOfPredicates, 67 NumberOfNonLiveVariables, 1294 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 44]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: \result == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 481]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 490]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 270]: Loop Invariant [2021-12-17 07:41:57,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,541 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-17 07:41:57,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: one_pow == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-17 07:41:57,765 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-17 07:41:57,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE