./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0876.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0876.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 eab96e82dec8c6a03938c46f142ce8ca8e84f75603faad2ada4530990f260568 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:31:54,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:31:54,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:31:54,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:31:54,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:31:54,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:31:54,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:31:54,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:31:54,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:31:54,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:31:54,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:31:54,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:31:54,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:31:54,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:31:54,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:31:54,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:31:54,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:31:54,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:31:54,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:31:54,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:31:54,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:31:54,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:31:54,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:31:54,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:31:54,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:31:54,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:31:54,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:31:54,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:31:54,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:31:54,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:31:54,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:31:54,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:31:54,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:31:54,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:31:54,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:31:54,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:31:54,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:31:54,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:31:54,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:31:54,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:31:54,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:31:54,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:31:54,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:31:54,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:31:54,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:31:54,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:31:54,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:31:54,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:31:54,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:31:54,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:31:54,421 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:31:54,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:31:54,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:31:54,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:31:54,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:31:54,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:31:54,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:31:54,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:31:54,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:31:54,423 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:31:54,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:31:54,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:31:54,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:31:54,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:31:54,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:31:54,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:31:54,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:31:54,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:31:54,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:31:54,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:31:54,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:31:54,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:31:54,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:31:54,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:31:54,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:31:54,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:31:54,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab96e82dec8c6a03938c46f142ce8ca8e84f75603faad2ada4530990f260568 [2021-12-14 13:31:54,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:31:54,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:31:54,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:31:54,616 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:31:54,617 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:31:54,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0876.c [2021-12-14 13:31:54,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786829882/ed461939a4f6423b9634e6e9eb13c83e/FLAG498bad151 [2021-12-14 13:31:55,073 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:31:55,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0876.c [2021-12-14 13:31:55,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786829882/ed461939a4f6423b9634e6e9eb13c83e/FLAG498bad151 [2021-12-14 13:31:55,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786829882/ed461939a4f6423b9634e6e9eb13c83e [2021-12-14 13:31:55,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:31:55,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:31:55,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:31:55,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:31:55,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:31:55,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:31:55" (1/1) ... [2021-12-14 13:31:55,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4136ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:55, skipping insertion in model container [2021-12-14 13:31:55,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:31:55" (1/1) ... [2021-12-14 13:31:55,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:31:55,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:31:55,359 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$50(StandardFunctionHandler.java:415) 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) [2021-12-14 13:31:55,365 INFO L158 Benchmark]: Toolchain (without parser) took 258.75ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 49.8MB in the beginning and 71.1MB in the end (delta: -21.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 13:31:55,366 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:31:55,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.21ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 71.1MB in the end (delta: -21.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 13:31:55,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.21ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 71.1MB in the end (delta: -21.5MB). Peak memory consumption was 6.3MB. 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/float_req_bl_0876.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 eab96e82dec8c6a03938c46f142ce8ca8e84f75603faad2ada4530990f260568 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:31:56,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:31:56,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:31:57,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:31:57,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:31:57,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:31:57,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:31:57,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:31:57,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:31:57,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:31:57,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:31:57,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:31:57,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:31:57,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:31:57,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:31:57,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:31:57,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:31:57,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:31:57,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:31:57,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:31:57,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:31:57,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:31:57,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:31:57,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:31:57,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:31:57,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:31:57,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:31:57,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:31:57,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:31:57,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:31:57,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:31:57,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:31:57,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:31:57,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:31:57,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:31:57,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:31:57,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:31:57,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:31:57,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:31:57,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:31:57,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:31:57,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-14 13:31:57,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:31:57,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:31:57,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:31:57,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:31:57,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:31:57,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:31:57,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:31:57,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:31:57,103 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:31:57,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:31:57,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:31:57,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:31:57,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:31:57,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:31:57,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:31:57,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:31:57,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:31:57,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:31:57,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:31:57,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:31:57,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-14 13:31:57,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab96e82dec8c6a03938c46f142ce8ca8e84f75603faad2ada4530990f260568 [2021-12-14 13:31:57,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:31:57,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:31:57,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:31:57,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:31:57,384 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:31:57,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0876.c [2021-12-14 13:31:57,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7f5f411/43666f1604774e38a8fec1835d216fbd/FLAG5067fde62 [2021-12-14 13:31:57,757 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:31:57,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0876.c [2021-12-14 13:31:57,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7f5f411/43666f1604774e38a8fec1835d216fbd/FLAG5067fde62 [2021-12-14 13:31:58,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7f5f411/43666f1604774e38a8fec1835d216fbd [2021-12-14 13:31:58,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:31:58,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:31:58,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:31:58,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:31:58,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:31:58,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbf19f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58, skipping insertion in model container [2021-12-14 13:31:58,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:31:58,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:31:58,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0876.c[14082,14095] [2021-12-14 13:31:58,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:31:58,436 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:31:58,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0876.c[14082,14095] [2021-12-14 13:31:58,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:31:58,540 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:31:58,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58 WrapperNode [2021-12-14 13:31:58,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:31:58,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:31:58,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:31:58,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:31:58,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,621 INFO L137 Inliner]: procedures = 26, calls = 193, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 739 [2021-12-14 13:31:58,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:31:58,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:31:58,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:31:58,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:31:58,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:31:58,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:31:58,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:31:58,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:31:58,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (1/1) ... [2021-12-14 13:31:58,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:31:58,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:31:58,773 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) [2021-12-14 13:31:58,795 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 [2021-12-14 13:31:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-12-14 13:31:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-14 13:31:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-14 13:31:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-12-14 13:31:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-12-14 13:31:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-14 13:31:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:31:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:31:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-14 13:31:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 13:31:58,936 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:31:58,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:32:27,802 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:32:27,819 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:32:27,819 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-12-14 13:32:27,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:27 BoogieIcfgContainer [2021-12-14 13:32:27,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:32:27,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:32:27,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:32:27,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:32:27,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:31:58" (1/3) ... [2021-12-14 13:32:27,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de09f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:27, skipping insertion in model container [2021-12-14 13:32:27,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:31:58" (2/3) ... [2021-12-14 13:32:27,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de09f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:27, skipping insertion in model container [2021-12-14 13:32:27,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:27" (3/3) ... [2021-12-14 13:32:27,838 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0876.c [2021-12-14 13:32:27,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:32:27,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:32:27,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:32:27,934 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 [2021-12-14 13:32:27,935 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:32:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 192 states have internal predecessors, (328), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 13:32:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 13:32:27,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:32:27,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:32:27,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:32:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:32:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 703028076, now seen corresponding path program 1 times [2021-12-14 13:32:27,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:32:27,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865199117] [2021-12-14 13:32:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:32:27,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:32:27,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:32:27,992 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) [2021-12-14 13:32:27,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-14 13:32:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:32:28,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-14 13:32:28,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:32:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:32:28,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:32:28,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-14 13:32:28,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865199117] [2021-12-14 13:32:28,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865199117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:32:28,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:32:28,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 13:32:28,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213426442] [2021-12-14 13:32:28,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:32:28,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 13:32:28,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-14 13:32:28,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 13:32:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 13:32:28,909 INFO L87 Difference]: Start difference. First operand has 200 states, 191 states have (on average 1.7172774869109948) internal successors, (328), 192 states have internal predecessors, (328), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:32:28,955 INFO L93 Difference]: Finished difference Result 397 states and 677 transitions. [2021-12-14 13:32:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 13:32:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-14 13:32:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:32:28,967 INFO L225 Difference]: With dead ends: 397 [2021-12-14 13:32:28,967 INFO L226 Difference]: Without dead ends: 196 [2021-12-14 13:32:28,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 13:32:28,978 INFO L933 BasicCegarLoop]: 265 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, 265 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 [2021-12-14 13:32:28,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:32:28,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-14 13:32:29,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-12-14 13:32:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3297872340425532) internal successors, (250), 188 states have internal predecessors, (250), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 13:32:29,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2021-12-14 13:32:29,060 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 18 [2021-12-14 13:32:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:32:29,060 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2021-12-14 13:32:29,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2021-12-14 13:32:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-14 13:32:29,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:32:29,063 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] [2021-12-14 13:32:29,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-14 13:32:29,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-14 13:32:29,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:32:29,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:32:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1530787270, now seen corresponding path program 1 times [2021-12-14 13:32:29,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:32:29,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109000235] [2021-12-14 13:32:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:32:29,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:32:29,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:32:29,294 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) [2021-12-14 13:32:29,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-14 13:32:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:32:30,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 13:32:30,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:32:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:32:30,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:32:30,842 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-14 13:32:30,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109000235] [2021-12-14 13:32:30,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109000235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:32:30,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:32:30,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 13:32:30,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407778103] [2021-12-14 13:32:30,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:32:30,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 13:32:30,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-14 13:32:30,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 13:32:30,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 13:32:30,845 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:32:30,863 INFO L93 Difference]: Finished difference Result 205 states and 269 transitions. [2021-12-14 13:32:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 13:32:30,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-12-14 13:32:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:32:30,865 INFO L225 Difference]: With dead ends: 205 [2021-12-14 13:32:30,865 INFO L226 Difference]: Without dead ends: 196 [2021-12-14 13:32:30,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 13:32:30,866 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:32:30,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1236 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2021-12-14 13:32:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-14 13:32:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-12-14 13:32:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.324468085106383) internal successors, (249), 188 states have internal predecessors, (249), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 13:32:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 259 transitions. [2021-12-14 13:32:30,874 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 259 transitions. Word has length 22 [2021-12-14 13:32:30,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:32:30,884 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 259 transitions. [2021-12-14 13:32:30,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 259 transitions. [2021-12-14 13:32:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-14 13:32:30,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:32:30,886 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] [2021-12-14 13:32:30,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-14 13:32:31,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-14 13:32:31,112 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:32:31,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:32:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash 459364139, now seen corresponding path program 1 times [2021-12-14 13:32:31,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:32:31,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363769579] [2021-12-14 13:32:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:32:31,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:32:31,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:32:31,123 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) [2021-12-14 13:32:31,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-14 13:32:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:32:31,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 13:32:31,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:32:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:32:33,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:32:33,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-14 13:32:33,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363769579] [2021-12-14 13:32:33,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363769579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:32:33,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:32:33,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 13:32:33,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879098839] [2021-12-14 13:32:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:32:33,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 13:32:33,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-14 13:32:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 13:32:33,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:32:33,011 INFO L87 Difference]: Start difference. First operand 196 states and 259 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:35,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:32:35,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:32:35,744 INFO L93 Difference]: Finished difference Result 214 states and 277 transitions. [2021-12-14 13:32:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 13:32:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-14 13:32:35,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:32:35,747 INFO L225 Difference]: With dead ends: 214 [2021-12-14 13:32:35,747 INFO L226 Difference]: Without dead ends: 205 [2021-12-14 13:32:35,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:32:35,748 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 10 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-14 13:32:35,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1450 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 42 Unchecked, 2.7s Time] [2021-12-14 13:32:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-14 13:32:35,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 196. [2021-12-14 13:32:35,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3191489361702127) internal successors, (248), 188 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 13:32:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 258 transitions. [2021-12-14 13:32:35,775 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 258 transitions. Word has length 24 [2021-12-14 13:32:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:32:35,776 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 258 transitions. [2021-12-14 13:32:35,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 258 transitions. [2021-12-14 13:32:35,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-14 13:32:35,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:32:35,777 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] [2021-12-14 13:32:35,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-14 13:32:35,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-14 13:32:35,978 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:32:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:32:35,980 INFO L85 PathProgramCache]: Analyzing trace with hash 461211181, now seen corresponding path program 1 times [2021-12-14 13:32:35,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-14 13:32:35,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098513310] [2021-12-14 13:32:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:32:35,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-14 13:32:35,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-14 13:32:35,985 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) [2021-12-14 13:32:35,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-14 13:32:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:32:36,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-14 13:32:36,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:32:37,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-14 13:32:37,506 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-12-14 13:32:37,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 30 [2021-12-14 13:32:39,864 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-14 13:32:39,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 35 [2021-12-14 13:32:40,810 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 35 treesize of output 19 [2021-12-14 13:32:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:32:42,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 13:32:42,528 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-14 13:32:42,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098513310] [2021-12-14 13:32:42,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098513310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:32:42,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:32:42,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 13:32:42,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791970663] [2021-12-14 13:32:42,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:32:42,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 13:32:42,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-14 13:32:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 13:32:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-14 13:32:42,530 INFO L87 Difference]: Start difference. First operand 196 states and 258 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 13:32:44,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:32:51,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:32:53,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 13:32:56,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 13:32:58,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:00,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:02,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:03,349 WARN L534 Checker$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 [] [2021-12-14 13:33:05,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:07,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:10,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 13:33:12,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []