./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/floats-cbmc-regression/float21.i -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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:05:44,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:05:44,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:05:44,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:05:44,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:05:44,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:05:44,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:05:44,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:05:44,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:05:44,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:05:44,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:05:44,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:05:44,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:05:44,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:05:44,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:05:44,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:05:44,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:05:44,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:05:44,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:05:44,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:05:44,662 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:05:44,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:05:44,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:05:44,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:05:44,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:05:44,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:05:44,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:05:44,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:05:44,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:05:44,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:05:44,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:05:44,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:05:44,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:05:44,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:05:44,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:05:44,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:05:44,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:05:44,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:05:44,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:05:44,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:05:44,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:05:44,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:05:44,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:05:44,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:05:44,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:05:44,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:05:44,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:05:44,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:05:44,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:05:44,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:05:44,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:05:44,706 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:05:44,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:05:44,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:05:44,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:05:44,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:05:44,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:05:44,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:05:44,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:05:44,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:05:44,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:05:44,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:05:44,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:44,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:05:44,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:05:44,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:05:44,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:05:44,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:05:44,712 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:05:44,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:05:44,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:05:44,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2022-07-13 14:05:44,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:05:44,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:05:44,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:05:44,928 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:05:44,928 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:05:44,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2022-07-13 14:05:44,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ef51b6f/236eb314e0a14f4fab15f62b7f252ab7/FLAGfec09e04b [2022-07-13 14:05:45,383 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:05:45,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2022-07-13 14:05:45,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ef51b6f/236eb314e0a14f4fab15f62b7f252ab7/FLAGfec09e04b [2022-07-13 14:05:45,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ef51b6f/236eb314e0a14f4fab15f62b7f252ab7 [2022-07-13 14:05:45,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:05:45,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:05:45,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:45,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:05:45,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:05:45,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:45" (1/1) ... [2022-07-13 14:05:45,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5016b910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:45, skipping insertion in model container [2022-07-13 14:05:45,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:45" (1/1) ... [2022-07-13 14:05:45,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:05:45,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:05:46,213 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:848) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1792) 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:1447) 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.visit(CHandler.java:1120) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1619) 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:1081) 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:1470) 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:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) 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) [2022-07-13 14:05:46,220 INFO L158 Benchmark]: Toolchain (without parser) took 473.85ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 78.2MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:05:46,220 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 107.0MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:46,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.85ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 78.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:05:46,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 107.0MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.85ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 78.2MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:848) 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/floats-cbmc-regression/float21.i -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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:05:47,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:05:47,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:05:47,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:05:47,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:05:47,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:05:47,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:05:47,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:05:47,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:05:47,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:05:47,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:05:47,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:05:47,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:05:47,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:05:47,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:05:47,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:05:47,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:05:47,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:05:47,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:05:47,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:05:47,782 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:05:47,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:05:47,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:05:47,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:05:47,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:05:47,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:05:47,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:05:47,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:05:47,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:05:47,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:05:47,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:05:47,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:05:47,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:05:47,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:05:47,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:05:47,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:05:47,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:05:47,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:05:47,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:05:47,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:05:47,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:05:47,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:05:47,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:05:47,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:05:47,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:05:47,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:05:47,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:05:47,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:05:47,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:05:47,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:05:47,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:05:47,826 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:05:47,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:05:47,827 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:05:47,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:05:47,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:05:47,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:05:47,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:05:47,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:47,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:05:47,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:05:47,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:05:47,830 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:05:47,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:05:47,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:05:47,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:05:47,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:05:47,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:05:47,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2022-07-13 14:05:48,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:05:48,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:05:48,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:05:48,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:05:48,150 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:05:48,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float21.i [2022-07-13 14:05:48,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4795225/75ae7edcd31f418bb6bfd29381113af7/FLAG191ec1752 [2022-07-13 14:05:48,629 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:05:48,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float21.i [2022-07-13 14:05:48,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4795225/75ae7edcd31f418bb6bfd29381113af7/FLAG191ec1752 [2022-07-13 14:05:48,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d4795225/75ae7edcd31f418bb6bfd29381113af7 [2022-07-13 14:05:48,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:05:48,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:05:48,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:48,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:05:48,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:05:48,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:48" (1/1) ... [2022-07-13 14:05:48,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e9633c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:48, skipping insertion in model container [2022-07-13 14:05:48,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:48" (1/1) ... [2022-07-13 14:05:48,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:05:48,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:05:49,032 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/floats-cbmc-regression/float21.i[40548,40561] [2022-07-13 14:05:49,036 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/floats-cbmc-regression/float21.i[40793,40806] [2022-07-13 14:05:49,037 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/floats-cbmc-regression/float21.i[41044,41057] [2022-07-13 14:05:49,038 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/floats-cbmc-regression/float21.i[41293,41306] [2022-07-13 14:05:49,039 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/floats-cbmc-regression/float21.i[41371,41384] [2022-07-13 14:05:49,039 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/floats-cbmc-regression/float21.i[41469,41482] [2022-07-13 14:05:49,040 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/floats-cbmc-regression/float21.i[41539,41552] [2022-07-13 14:05:49,041 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/floats-cbmc-regression/float21.i[41607,41620] [2022-07-13 14:05:49,041 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/floats-cbmc-regression/float21.i[41705,41718] [2022-07-13 14:05:49,041 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/floats-cbmc-regression/float21.i[41799,41812] [2022-07-13 14:05:49,042 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/floats-cbmc-regression/float21.i[41906,41919] [2022-07-13 14:05:49,044 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/floats-cbmc-regression/float21.i[41974,41987] [2022-07-13 14:05:49,046 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/floats-cbmc-regression/float21.i[42220,42233] [2022-07-13 14:05:49,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:49,058 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:05:49,087 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/floats-cbmc-regression/float21.i[40548,40561] [2022-07-13 14:05:49,088 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/floats-cbmc-regression/float21.i[40793,40806] [2022-07-13 14:05:49,092 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/floats-cbmc-regression/float21.i[41044,41057] [2022-07-13 14:05:49,094 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/floats-cbmc-regression/float21.i[41293,41306] [2022-07-13 14:05:49,094 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/floats-cbmc-regression/float21.i[41371,41384] [2022-07-13 14:05:49,095 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/floats-cbmc-regression/float21.i[41469,41482] [2022-07-13 14:05:49,095 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/floats-cbmc-regression/float21.i[41539,41552] [2022-07-13 14:05:49,096 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/floats-cbmc-regression/float21.i[41607,41620] [2022-07-13 14:05:49,097 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/floats-cbmc-regression/float21.i[41705,41718] [2022-07-13 14:05:49,097 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/floats-cbmc-regression/float21.i[41799,41812] [2022-07-13 14:05:49,097 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/floats-cbmc-regression/float21.i[41906,41919] [2022-07-13 14:05:49,098 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/floats-cbmc-regression/float21.i[41974,41987] [2022-07-13 14:05:49,099 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/floats-cbmc-regression/float21.i[42220,42233] [2022-07-13 14:05:49,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:49,165 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:05:49,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49 WrapperNode [2022-07-13 14:05:49,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:49,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:49,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:05:49,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:05:49,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,203 INFO L137 Inliner]: procedures = 449, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-07-13 14:05:49,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:49,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:05:49,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:05:49,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:05:49,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:05:49,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:05:49,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:05:49,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:05:49,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (1/1) ... [2022-07-13 14:05:49,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:49,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:05:49,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:05:49,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:05:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:05:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:05:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:05:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:05:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 14:05:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 14:05:49,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:05:49,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:05:57,566 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:05:57,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:05:57,571 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:05:57,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:57 BoogieIcfgContainer [2022-07-13 14:05:57,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:05:57,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:05:57,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:05:57,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:05:57,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:05:48" (1/3) ... [2022-07-13 14:05:57,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b39c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:57, skipping insertion in model container [2022-07-13 14:05:57,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:49" (2/3) ... [2022-07-13 14:05:57,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b39c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:57, skipping insertion in model container [2022-07-13 14:05:57,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:57" (3/3) ... [2022-07-13 14:05:57,577 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2022-07-13 14:05:57,598 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:05:57,599 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-07-13 14:05:57,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:05:57,647 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c1fe057, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b97f4b7 [2022-07-13 14:05:57,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-13 14:05:57,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 50 states have internal predecessors, (64), 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) [2022-07-13 14:05:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 14:05:57,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:57,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 14:05:57,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:05:57,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-13 14:05:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:05:57,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046298202] [2022-07-13 14:05:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:57,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:05:57,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:05:57,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:05:57,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:05:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:05:57,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 14:05:57,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:05:57,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:05:57,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:05:57,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:05:57,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046298202] [2022-07-13 14:05:57,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046298202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:05:57,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:05:57,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:05:57,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113564767] [2022-07-13 14:05:57,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:05:57,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:05:57,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:05:57,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:05:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:05:57,791 INFO L87 Difference]: Start difference. First operand has 55 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 50 states have internal predecessors, (64), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:05:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:05:57,808 INFO L93 Difference]: Finished difference Result 105 states and 137 transitions. [2022-07-13 14:05:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:05:57,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-13 14:05:57,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:05:57,813 INFO L225 Difference]: With dead ends: 105 [2022-07-13 14:05:57,814 INFO L226 Difference]: Without dead ends: 49 [2022-07-13 14:05:57,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:05:57,818 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:05:57,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-07-13 14:05:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-07-13 14:05:57,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-07-13 14:05:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 44 states have internal predecessors, (44), 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) [2022-07-13 14:05:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-07-13 14:05:57,842 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 4 [2022-07-13 14:05:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:05:57,842 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-07-13 14:05:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:05:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2022-07-13 14:05:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:05:57,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:57,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:05:57,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:05:58,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:05:58,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:05:58,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1079818240, now seen corresponding path program 1 times [2022-07-13 14:05:58,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:05:58,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51122091] [2022-07-13 14:05:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:58,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:05:58,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:05:58,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:05:58,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:05:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:05:58,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 14:05:58,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:05:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:05:58,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:05:58,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:05:58,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51122091] [2022-07-13 14:05:58,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51122091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:05:58,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:05:58,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:05:58,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571244932] [2022-07-13 14:05:58,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:05:58,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:05:58,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:05:58,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:05:58,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:05:58,500 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-07-13 14:05:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:05:58,535 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2022-07-13 14:05:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:05:58,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2022-07-13 14:05:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:05:58,537 INFO L225 Difference]: With dead ends: 49 [2022-07-13 14:05:58,537 INFO L226 Difference]: Without dead ends: 47 [2022-07-13 14:05:58,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:05:58,538 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:05:58,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 146 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-07-13 14:05:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-13 14:05:58,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-07-13 14:05:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.3125) internal successors, (42), 42 states have internal predecessors, (42), 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) [2022-07-13 14:05:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-07-13 14:05:58,543 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 11 [2022-07-13 14:05:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:05:58,544 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-07-13 14:05:58,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-07-13 14:05:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-07-13 14:05:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:05:58,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:58,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:05:58,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:05:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:05:58,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:05:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash -885368843, now seen corresponding path program 1 times [2022-07-13 14:05:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:05:58,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779443504] [2022-07-13 14:05:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:58,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:05:58,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:05:58,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:05:58,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:05:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:05:58,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 14:05:58,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:05:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:05:58,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:05:58,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:05:58,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779443504] [2022-07-13 14:05:58,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779443504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:05:58,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:05:58,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:05:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925728469] [2022-07-13 14:05:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:05:58,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:05:58,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:05:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:05:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:05:58,817 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 14:05:58,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:05:58,820 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2022-07-13 14:05:58,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:05:58,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-07-13 14:05:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:05:58,821 INFO L225 Difference]: With dead ends: 47 [2022-07-13 14:05:58,821 INFO L226 Difference]: Without dead ends: 45 [2022-07-13 14:05:58,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:05:58,822 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:05:58,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2022-07-13 14:05:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-13 14:05:58,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-13 14:05:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 40 states have internal predecessors, (40), 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) [2022-07-13 14:05:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2022-07-13 14:05:58,826 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 12 [2022-07-13 14:05:58,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:05:58,826 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-07-13 14:05:58,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 14:05:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2022-07-13 14:05:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 14:05:58,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:58,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:05:58,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 14:05:59,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:05:59,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:05:59,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1435316947, now seen corresponding path program 1 times [2022-07-13 14:05:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:05:59,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085202412] [2022-07-13 14:05:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:59,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:05:59,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:05:59,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:05:59,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 14:05:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:05:59,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 14:05:59,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:05:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 14:05:59,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:05:59,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:05:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085202412] [2022-07-13 14:05:59,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085202412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:05:59,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:05:59,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:05:59,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022426286] [2022-07-13 14:05:59,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:05:59,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:05:59,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:05:59,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:05:59,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:05:59,444 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:03,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:04,227 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2022-07-13 14:06:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:06:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-07-13 14:06:04,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:04,239 INFO L225 Difference]: With dead ends: 45 [2022-07-13 14:06:04,239 INFO L226 Difference]: Without dead ends: 41 [2022-07-13 14:06:04,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:06:04,240 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:04,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 56 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-13 14:06:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-13 14:06:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-07-13 14:06:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 36 states have internal predecessors, (36), 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) [2022-07-13 14:06:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2022-07-13 14:06:04,244 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 19 [2022-07-13 14:06:04,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:04,244 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2022-07-13 14:06:04,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2022-07-13 14:06:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:06:04,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:04,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:04,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-13 14:06:04,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:04,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1545156500, now seen corresponding path program 1 times [2022-07-13 14:06:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:04,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882821585] [2022-07-13 14:06:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:04,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:04,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:04,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:04,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-13 14:06:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:04,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 14:06:04,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 14:06:04,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:04,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:04,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882821585] [2022-07-13 14:06:04,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882821585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:04,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:04,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:06:04,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940206236] [2022-07-13 14:06:04,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:04,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:06:04,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:04,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:06:04,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:04,561 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:04,563 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2022-07-13 14:06:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:06:04,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-07-13 14:06:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:04,563 INFO L225 Difference]: With dead ends: 41 [2022-07-13 14:06:04,564 INFO L226 Difference]: Without dead ends: 39 [2022-07-13 14:06:04,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:04,565 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:04,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-07-13 14:06:04,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-13 14:06:04,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-13 14:06:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 34 states have internal predecessors, (34), 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) [2022-07-13 14:06:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2022-07-13 14:06:04,568 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 20 [2022-07-13 14:06:04,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:04,568 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2022-07-13 14:06:04,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:04,569 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2022-07-13 14:06:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-13 14:06:04,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:04,569 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:04,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-13 14:06:04,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:04,777 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:04,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:04,778 INFO L85 PathProgramCache]: Analyzing trace with hash 655215355, now seen corresponding path program 1 times [2022-07-13 14:06:04,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:04,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225181601] [2022-07-13 14:06:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:04,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:04,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:04,780 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:04,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-13 14:06:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:04,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 14:06:04,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 14:06:04,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:04,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:04,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225181601] [2022-07-13 14:06:04,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225181601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:04,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:04,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:06:04,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995900941] [2022-07-13 14:06:04,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:04,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:06:04,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:04,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:06:04,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:04,935 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:07,861 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2022-07-13 14:06:07,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:06:07,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-07-13 14:06:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:07,873 INFO L225 Difference]: With dead ends: 39 [2022-07-13 14:06:07,873 INFO L226 Difference]: Without dead ends: 35 [2022-07-13 14:06:07,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:07,874 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:07,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 22 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-13 14:06:07,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-13 14:06:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-07-13 14:06:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 30 states have internal predecessors, (30), 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) [2022-07-13 14:06:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-07-13 14:06:07,879 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 21 [2022-07-13 14:06:07,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:07,879 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-07-13 14:06:07,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-07-13 14:06:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 14:06:07,880 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:07,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:07,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-13 14:06:08,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:08,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:08,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:08,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1163156356, now seen corresponding path program 1 times [2022-07-13 14:06:08,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:08,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722604648] [2022-07-13 14:06:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:08,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:08,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:08,083 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:08,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-13 14:06:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:08,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 14:06:08,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 14:06:08,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:08,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:08,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722604648] [2022-07-13 14:06:08,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722604648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:08,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:08,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:06:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639852355] [2022-07-13 14:06:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:08,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:06:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:06:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:08,230 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:11,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:11,828 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-07-13 14:06:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:06:11,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-07-13 14:06:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:11,841 INFO L225 Difference]: With dead ends: 35 [2022-07-13 14:06:11,841 INFO L226 Difference]: Without dead ends: 33 [2022-07-13 14:06:11,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:11,842 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:11,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-13 14:06:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-13 14:06:11,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-13 14:06:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 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) [2022-07-13 14:06:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-07-13 14:06:11,845 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 22 [2022-07-13 14:06:11,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:11,845 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-07-13 14:06:11,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-07-13 14:06:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 14:06:11,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:11,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:11,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-13 14:06:12,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:12,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:12,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1698104541, now seen corresponding path program 1 times [2022-07-13 14:06:12,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:12,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980171105] [2022-07-13 14:06:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:12,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:12,049 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:12,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-13 14:06:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:12,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 14:06:12,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 14:06:12,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:12,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:12,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980171105] [2022-07-13 14:06:12,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980171105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:12,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:12,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:06:12,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260591255] [2022-07-13 14:06:12,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:12,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 14:06:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:12,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 14:06:12,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:12,171 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:14,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:15,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:15,943 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-07-13 14:06:15,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 14:06:15,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-13 14:06:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:15,956 INFO L225 Difference]: With dead ends: 33 [2022-07-13 14:06:15,956 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 14:06:15,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 14:06:15,956 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:15,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-13 14:06:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 14:06:15,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 14:06:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 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) [2022-07-13 14:06:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-07-13 14:06:15,959 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2022-07-13 14:06:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:15,959 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-07-13 14:06:15,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-07-13 14:06:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-13 14:06:15,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:15,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:15,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-13 14:06:16,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:16,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:16,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2103462324, now seen corresponding path program 1 times [2022-07-13 14:06:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:16,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673736409] [2022-07-13 14:06:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:16,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:16,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:16,170 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:16,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-13 14:06:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:16,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 14:06:16,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 14:06:16,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:16,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:16,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673736409] [2022-07-13 14:06:16,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673736409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:16,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:16,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:06:16,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739490307] [2022-07-13 14:06:16,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:16,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:06:16,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:16,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:06:16,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:06:16,664 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:18,510 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-13 14:06:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:06:18,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-07-13 14:06:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:18,524 INFO L225 Difference]: With dead ends: 31 [2022-07-13 14:06:18,524 INFO L226 Difference]: Without dead ends: 27 [2022-07-13 14:06:18,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:06:18,527 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:18,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 14:06:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-13 14:06:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-13 14:06:18,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2022-07-13 14:06:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-07-13 14:06:18,537 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 26 [2022-07-13 14:06:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:18,537 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-07-13 14:06:18,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-07-13 14:06:18,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-13 14:06:18,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:18,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:18,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-13 14:06:18,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:18,751 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2022-07-13 14:06:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1859738407, now seen corresponding path program 1 times [2022-07-13 14:06:18,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:18,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276711125] [2022-07-13 14:06:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:18,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:18,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:18,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:18,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-13 14:06:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:19,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 14:06:19,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:28,701 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~f~0#1| (_ FloatingPoint 8 24))) (and (fp.isSubnormal |ULTIMATE.start_main_~f~0#1|) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~f~0#1|)) |ULTIMATE.start_main_~f~0#1|)))) is different from false [2022-07-13 14:06:30,713 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~f~0#1| (_ FloatingPoint 8 24))) (and (fp.isSubnormal |ULTIMATE.start_main_~f~0#1|) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~f~0#1|)) |ULTIMATE.start_main_~f~0#1|)))) is different from true [2022-07-13 14:06:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 14:06:30,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:30,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:30,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276711125] [2022-07-13 14:06:30,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276711125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:30,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:30,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:06:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210318364] [2022-07-13 14:06:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:30,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:06:30,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:30,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:06:30,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=18, Unknown=2, NotChecked=8, Total=42 [2022-07-13 14:06:30,714 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 14:06:34,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:36,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-13 14:06:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:36,605 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-07-13 14:06:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:06:36,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2022-07-13 14:06:36,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:36,620 INFO L225 Difference]: With dead ends: 27 [2022-07-13 14:06:36,620 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:06:36,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=19, Invalid=25, Unknown=2, NotChecked=10, Total=56 [2022-07-13 14:06:36,621 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:36,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 2 Unknown, 25 Unchecked, 5.9s Time] [2022-07-13 14:06:36,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:06:36,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:06:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:06:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:06:36,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-07-13 14:06:36,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:36,621 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:06:36,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 14:06:36,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:06:36,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:06:36,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2022-07-13 14:06:36,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2022-07-13 14:06:36,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2022-07-13 14:06:36,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2022-07-13 14:06:36,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2022-07-13 14:06:36,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2022-07-13 14:06:36,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-13 14:06:36,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:36,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:06:36,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2022-07-13 14:06:36,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2022-07-13 14:06:36,919 INFO L899 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2022-07-13 14:06:36,919 INFO L899 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L384-3(line 384) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L895 garLoopResultBuilder]: At program point L401(line 401) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L401-1(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2022-07-13 14:06:36,920 INFO L899 garLoopResultBuilder]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L402-2(line 402) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L394(line 394) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L895 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L386-1(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L902 garLoopResultBuilder]: At program point L403(lines 378 404) the Hoare annotation is: true [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L395(line 395) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L387(line 387) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2022-07-13 14:06:36,921 INFO L899 garLoopResultBuilder]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L388(line 388) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L388-2(line 388) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 33554431.0 2854495385411919762116571938898990272765493248.0)) |ULTIMATE.start_main_~v~0#1|) (= |ULTIMATE.start_main_~smallestNormalFloat~0#1| ((_ to_fp 8 24) currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) (= ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)) |ULTIMATE.start_main_~largestSubnormalFloat~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 379 404) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L3-2(lines 2 4) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 2 4) the Hoare annotation is: true [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2022-07-13 14:06:36,922 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 2 4) no Hoare annotation was computed. [2022-07-13 14:06:36,924 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:36,925 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:06:36,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:06:36 BoogieIcfgContainer [2022-07-13 14:06:36,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:06:36,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:06:36,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:06:36,931 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:06:36,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:57" (3/4) ... [2022-07-13 14:06:36,936 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:06:36,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-13 14:06:36,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 14:06:36,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 14:06:36,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:06:36,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:06:36,977 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:06:36,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:06:36,978 INFO L158 Benchmark]: Toolchain (without parser) took 48305.84ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 52.0MB in the beginning and 74.8MB in the end (delta: -22.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,978 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:06:36,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.49ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.44ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 38.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,979 INFO L158 Benchmark]: Boogie Preprocessor took 18.24ms. Allocated memory is still 71.3MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,979 INFO L158 Benchmark]: RCFGBuilder took 8349.57ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 37.1MB in the beginning and 83.5MB in the end (delta: -46.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,980 INFO L158 Benchmark]: TraceAbstraction took 39356.98ms. Allocated memory is still 104.9MB. Free memory was 82.9MB in the beginning and 77.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,980 INFO L158 Benchmark]: Witness Printer took 46.99ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 74.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:06:36,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.49ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.44ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 38.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.24ms. Allocated memory is still 71.3MB. Free memory was 38.6MB in the beginning and 37.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8349.57ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 37.1MB in the beginning and 83.5MB in the end (delta: -46.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39356.98ms. Allocated memory is still 104.9MB. Free memory was 82.9MB in the beginning and 77.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 46.99ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 74.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 39.3s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 22.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 22.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 91 IncrementalHoareTripleChecker+Unchecked, 251 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 275 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 60 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 182 ConstructedInterpolants, 20 QuantifiedInterpolants, 1095 SizeOfPredicates, 31 NumberOfNonLiveVariables, 366 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-13 14:06:37,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE