./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0883.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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_0883.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 06b4b1323d8f9b464c0feec2390cbe4b016fc9fcf8f855908ee9b31b1449e1d6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:33:58,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:33:58,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:33:58,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:33:58,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:33:58,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:33:58,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:33:58,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:33:58,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:33:58,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:33:58,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:33:58,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:33:58,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:33:58,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:33:58,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:33:58,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:33:58,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:33:58,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:33:58,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:33:58,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:33:58,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:33:58,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:33:58,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:33:58,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:33:58,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:33:58,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:33:58,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:33:58,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:33:58,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:33:58,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:33:58,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:33:58,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:33:58,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:33:58,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:33:58,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:33:58,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:33:58,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:33:58,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:33:58,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:33:58,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:33:58,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:33:58,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:33:58,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:33:58,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:33:58,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:33:58,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:33:58,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:33:58,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:33:58,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:33:58,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:33:58,840 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:33:58,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:33:58,841 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:33:58,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:33:58,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:33:58,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:33:58,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:33:58,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:33:58,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:33:58,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:33:58,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:33:58,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:33:58,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:33:58,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:33:58,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:33:58,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:33:58,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06b4b1323d8f9b464c0feec2390cbe4b016fc9fcf8f855908ee9b31b1449e1d6 [2021-12-15 10:33:59,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:33:59,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:33:59,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:33:59,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:33:59,088 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:33:59,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2021-12-15 10:33:59,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445f13bd1/4476479e7d48472199a3bd60d8e2603c/FLAG5108ba52d [2021-12-15 10:33:59,547 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:33:59,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2021-12-15 10:33:59,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445f13bd1/4476479e7d48472199a3bd60d8e2603c/FLAG5108ba52d [2021-12-15 10:33:59,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445f13bd1/4476479e7d48472199a3bd60d8e2603c [2021-12-15 10:33:59,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:33:59,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:33:59,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:33:59,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:33:59,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:33:59,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:33:59" (1/1) ... [2021-12-15 10:34:00,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a32d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:00, skipping insertion in model container [2021-12-15 10:34:00,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:33:59" (1/1) ... [2021-12-15 10:34:00,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:34:00,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:34:00,228 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) [2021-12-15 10:34:00,233 INFO L158 Benchmark]: Toolchain (without parser) took 237.55ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 94.9MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:34:00,234 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:34:00,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.88ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 94.9MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:34:00,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.88ms. Allocated memory is still 121.6MB. Free memory was 82.3MB in the beginning and 94.9MB in the end (delta: -12.7MB). Peak memory consumption was 10.5MB. 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_0883.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 06b4b1323d8f9b464c0feec2390cbe4b016fc9fcf8f855908ee9b31b1449e1d6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:34:01,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:34:01,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:34:01,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:34:01,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:34:01,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:34:01,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:34:01,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:34:01,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:34:01,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:34:01,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:34:01,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:34:01,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:34:01,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:34:01,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:34:01,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:34:01,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:34:01,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:34:01,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:34:01,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:34:01,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:34:01,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:34:01,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:34:01,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:34:01,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:34:01,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:34:01,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:34:01,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:34:01,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:34:01,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:34:01,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:34:01,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:34:01,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:34:01,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:34:01,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:34:01,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:34:01,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:34:01,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:34:01,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:34:01,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:34:01,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:34:01,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:34:01,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:34:01,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:34:01,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:34:01,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:34:01,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:34:01,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:34:01,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:34:01,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:34:01,859 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:34:01,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:34:01,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:34:01,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:34:01,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:34:01,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:34:01,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:34:01,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:34:01,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:34:01,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:34:01,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:34:01,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:34:01,863 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:34:01,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:34:01,864 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:34:01,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:34:01,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:34:01,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:34:01,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:34:01,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06b4b1323d8f9b464c0feec2390cbe4b016fc9fcf8f855908ee9b31b1449e1d6 [2021-12-15 10:34:02,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:34:02,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:34:02,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:34:02,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:34:02,121 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:34:02,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2021-12-15 10:34:02,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08aca36/4d12700253bd48c683442d07fd29948e/FLAG6939b6cd6 [2021-12-15 10:34:02,562 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:34:02,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0883.c [2021-12-15 10:34:02,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08aca36/4d12700253bd48c683442d07fd29948e/FLAG6939b6cd6 [2021-12-15 10:34:02,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08aca36/4d12700253bd48c683442d07fd29948e [2021-12-15 10:34:02,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:34:02,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:34:02,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:34:02,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:34:02,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:34:02,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30892c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02, skipping insertion in model container [2021-12-15 10:34:02,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:34:02,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:34:02,785 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_0883.c[14409,14422] [2021-12-15 10:34:02,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:34:02,794 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:34:02,861 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_0883.c[14409,14422] [2021-12-15 10:34:02,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:34:02,880 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:34:02,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02 WrapperNode [2021-12-15 10:34:02,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:34:02,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:34:02,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:34:02,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:34:02,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,939 INFO L137 Inliner]: procedures = 25, calls = 164, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 781 [2021-12-15 10:34:02,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:34:02,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:34:02,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:34:02,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:34:02,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:02,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:34:03,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:34:03,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:34:03,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:34:03,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (1/1) ... [2021-12-15 10:34:03,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:34:03,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:34:03,026 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) [2021-12-15 10:34:03,030 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 [2021-12-15 10:34:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:34:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:34:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-12-15 10:34:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-12-15 10:34:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:34:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:34:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:34:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-15 10:34:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:34:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:34:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:34:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:34:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:34:03,209 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:34:03,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:35:03,777 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:35:03,785 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:35:03,786 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-12-15 10:35:03,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:35:03 BoogieIcfgContainer [2021-12-15 10:35:03,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:35:03,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:35:03,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:35:03,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:35:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:34:02" (1/3) ... [2021-12-15 10:35:03,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dac724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:35:03, skipping insertion in model container [2021-12-15 10:35:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:34:02" (2/3) ... [2021-12-15 10:35:03,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dac724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:35:03, skipping insertion in model container [2021-12-15 10:35:03,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:35:03" (3/3) ... [2021-12-15 10:35:03,792 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0883.c [2021-12-15 10:35:03,799 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:35:03,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:35:03,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:35:03,837 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 [2021-12-15 10:35:03,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:35:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 202 states have (on average 1.702970297029703) internal successors, (344), 203 states have internal predecessors, (344), 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) [2021-12-15 10:35:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 10:35:03,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:35:03,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:35:03,854 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:35:03,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:35:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2088583523, now seen corresponding path program 1 times [2021-12-15 10:35:03,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:35:03,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280876209] [2021-12-15 10:35:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:35:03,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:35:03,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:35:03,867 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) [2021-12-15 10:35:03,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:35:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:35:04,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:35:04,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:35:04,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:35:04,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:35:04,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:35:04,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280876209] [2021-12-15 10:35:04,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280876209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:35:04,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:35:04,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:35:04,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328196688] [2021-12-15 10:35:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:35:04,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:35:04,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:35:04,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:35:04,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:35:04,505 INFO L87 Difference]: Start difference. First operand has 208 states, 202 states have (on average 1.702970297029703) internal successors, (344), 203 states have internal predecessors, (344), 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 6.5) internal successors, (13), 2 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) [2021-12-15 10:35:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:35:04,534 INFO L93 Difference]: Finished difference Result 413 states and 699 transitions. [2021-12-15 10:35:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:35:04,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2021-12-15 10:35:04,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:35:04,542 INFO L225 Difference]: With dead ends: 413 [2021-12-15 10:35:04,542 INFO L226 Difference]: Without dead ends: 204 [2021-12-15 10:35:04,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:35:04,547 INFO L933 BasicCegarLoop]: 289 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, 289 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 [2021-12-15 10:35:04,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:35:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-12-15 10:35:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-12-15 10:35:04,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.3969849246231156) internal successors, (278), 199 states have internal predecessors, (278), 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) [2021-12-15 10:35:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 284 transitions. [2021-12-15 10:35:04,580 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 284 transitions. Word has length 13 [2021-12-15 10:35:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:35:04,580 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 284 transitions. [2021-12-15 10:35:04,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2021-12-15 10:35:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 284 transitions. [2021-12-15 10:35:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 10:35:04,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:35:04,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:35:04,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:35:04,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:35:04,787 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:35:04,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:35:04,788 INFO L85 PathProgramCache]: Analyzing trace with hash -344978042, now seen corresponding path program 1 times [2021-12-15 10:35:04,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:35:04,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497428982] [2021-12-15 10:35:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:35:04,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:35:04,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:35:04,790 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) [2021-12-15 10:35:04,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:35:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:35:05,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 10:35:05,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:35:05,613 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 [2021-12-15 10:35:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:35:09,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:35:09,237 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:35:09,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497428982] [2021-12-15 10:35:09,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497428982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:35:09,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:35:09,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:35:09,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820570560] [2021-12-15 10:35:09,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:35:09,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:35:09,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:35:09,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:35:09,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2021-12-15 10:35:09,239 INFO L87 Difference]: Start difference. First operand 204 states and 284 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:35:12,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:35:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:35:12,102 INFO L93 Difference]: Finished difference Result 212 states and 291 transitions. [2021-12-15 10:35:12,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 10:35:12,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-15 10:35:12,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:35:12,261 INFO L225 Difference]: With dead ends: 212 [2021-12-15 10:35:12,261 INFO L226 Difference]: Without dead ends: 204 [2021-12-15 10:35:12,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-12-15 10:35:12,262 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 2 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-15 10:35:12,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1057 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 57 Unchecked, 2.5s Time] [2021-12-15 10:35:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-12-15 10:35:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-12-15 10:35:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.3919597989949748) internal successors, (277), 199 states have internal predecessors, (277), 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) [2021-12-15 10:35:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 283 transitions. [2021-12-15 10:35:12,285 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 283 transitions. Word has length 16 [2021-12-15 10:35:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:35:12,285 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 283 transitions. [2021-12-15 10:35:12,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:35:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 283 transitions. [2021-12-15 10:35:12,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:35:12,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:35:12,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:35:12,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 10:35:12,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:35:12,486 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:35:12,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:35:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1132958113, now seen corresponding path program 1 times [2021-12-15 10:35:12,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:35:12,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967144529] [2021-12-15 10:35:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:35:12,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:35:12,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:35:12,489 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) [2021-12-15 10:35:12,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:35:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:35:12,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:35:12,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:35:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:35:16,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:35:16,032 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:35:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967144529] [2021-12-15 10:35:16,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967144529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:35:16,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:35:16,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 10:35:16,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266278387] [2021-12-15 10:35:16,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:35:16,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:35:16,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:35:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:35:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:35:16,033 INFO L87 Difference]: Start difference. First operand 204 states and 283 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:35:16,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:35:16,047 INFO L93 Difference]: Finished difference Result 212 states and 290 transitions. [2021-12-15 10:35:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:35:16,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-15 10:35:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:35:16,048 INFO L225 Difference]: With dead ends: 212 [2021-12-15 10:35:16,048 INFO L226 Difference]: Without dead ends: 204 [2021-12-15 10:35:16,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:35:16,049 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 0 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1336 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 [2021-12-15 10:35:16,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1336 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 45 Unchecked, 0.0s Time] [2021-12-15 10:35:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-12-15 10:35:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-12-15 10:35:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.3869346733668342) internal successors, (276), 199 states have internal predecessors, (276), 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) [2021-12-15 10:35:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 282 transitions. [2021-12-15 10:35:16,057 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 282 transitions. Word has length 18 [2021-12-15 10:35:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:35:16,057 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 282 transitions. [2021-12-15 10:35:16,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:35:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 282 transitions. [2021-12-15 10:35:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:35:16,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:35:16,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:35:16,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:35:16,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:35:16,264 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:35:16,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:35:16,264 INFO L85 PathProgramCache]: Analyzing trace with hash 323611487, now seen corresponding path program 1 times [2021-12-15 10:35:16,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:35:16,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170938428] [2021-12-15 10:35:16,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:35:16,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:35:16,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:35:16,266 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) [2021-12-15 10:35:16,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 10:35:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:35:16,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-15 10:35:16,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:35:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 10:35:17,686 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