./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 9ec220fd0064d8652998013027d97b204a648814 ...................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 9ec220fd0064d8652998013027d97b204a648814 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:25,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:25,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:25,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:25,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:25,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:25,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:25,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:25,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:25,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:25,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:25,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:25,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:25,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:25,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:25,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:25,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:25,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:25,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:25,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:25,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:25,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:25,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:25,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:25,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:25,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:25,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:25,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:25,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:25,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:25,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:25,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:25,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:25,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:25,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:25,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:25,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:25,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:25,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:25,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:25,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:25,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:16:25,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:25,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:25,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:25,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:25,729 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:25,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:25,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:25,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:16:25,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:25,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:25,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:25,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:25,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:25,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:25,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:25,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:25,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:25,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:25,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:25,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:25,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:25,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:25,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:25,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:25,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:25,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:16:25,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:16:25,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:25,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:25,736 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-10-24 14:16:26,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:26,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:26,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:26,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:26,257 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:26,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-10-24 14:16:26,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a1ba86e/1e5fa75eb9964aedb9493e1a09c05492/FLAG61027f19e [2020-10-24 14:16:27,138 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:27,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-10-24 14:16:27,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a1ba86e/1e5fa75eb9964aedb9493e1a09c05492/FLAG61027f19e [2020-10-24 14:16:27,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68a1ba86e/1e5fa75eb9964aedb9493e1a09c05492 [2020-10-24 14:16:27,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:27,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:27,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:27,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:27,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:27,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:27" (1/1) ... [2020-10-24 14:16:27,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e9bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:27, skipping insertion in model container [2020-10-24 14:16:27,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:27" (1/1) ... [2020-10-24 14:16:27,480 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:27,507 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:27,733 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructUnaryExpression(ExpressionTranslation.java:141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleUnaryArithmeticOperators(CExpressionTranslator.java:407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2351) 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:704) 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:2341) 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:2341) 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:2341) 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:2341) 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:1568) 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:1044) 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:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) 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) [2020-10-24 14:16:27,742 INFO L168 Benchmark]: Toolchain (without parser) took 293.26 ms. Allocated memory is still 41.9 MB. Free memory was 24.7 MB in the beginning and 26.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:27,743 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:27,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.69 ms. Allocated memory is still 41.9 MB. Free memory was 24.1 MB in the beginning and 26.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:27,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 24.4 MB in the beginning and 24.3 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.69 ms. Allocated memory is still 41.9 MB. Free memory was 24.1 MB in the beginning and 26.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:30,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:30,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:30,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:30,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:30,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:30,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:30,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:30,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:30,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:30,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:30,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:30,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:30,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:30,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:30,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:30,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:30,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:30,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:30,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:30,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:30,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:30,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:30,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:30,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:30,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:30,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:30,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:30,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:30,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:30,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:30,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:30,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:30,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:30,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:30,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:30,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:30,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:30,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:30,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:30,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:30,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:16:30,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:30,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:30,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:30,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:30,554 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:30,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:30,554 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:30,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:30,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:30,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:30,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:30,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:30,555 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:16:30,555 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:16:30,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:30,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:30,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:30,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:30,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:30,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:30,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:30,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:30,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:30,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:30,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:30,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:30,558 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:16:30,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:16:30,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:30,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:30,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:16:30,559 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-10-24 14:16:31,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:31,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:31,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:31,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:31,100 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:31,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-10-24 14:16:31,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f724093ae/3ab0cb1927f246c19ac02c3eb19d978d/FLAGb1e404701 [2020-10-24 14:16:31,948 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:31,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-10-24 14:16:31,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f724093ae/3ab0cb1927f246c19ac02c3eb19d978d/FLAGb1e404701 [2020-10-24 14:16:32,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f724093ae/3ab0cb1927f246c19ac02c3eb19d978d [2020-10-24 14:16:32,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:32,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:32,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:32,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:32,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:32,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679e42b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32, skipping insertion in model container [2020-10-24 14:16:32,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,316 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:32,344 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:32,566 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:32,584 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:32,653 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:32,693 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32 WrapperNode [2020-10-24 14:16:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:32,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:32,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:32,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:32,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:32,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:32,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:32,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:32,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... [2020-10-24 14:16:32,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:32,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:32,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:32,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:32,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:16:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:16:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:32,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:16:34,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:34,208 INFO L298 CfgBuilder]: Removed 76 assume(true) statements. [2020-10-24 14:16:34,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:34 BoogieIcfgContainer [2020-10-24 14:16:34,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:34,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:34,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:34,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:34,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:32" (1/3) ... [2020-10-24 14:16:34,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4645b735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:34, skipping insertion in model container [2020-10-24 14:16:34,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:32" (2/3) ... [2020-10-24 14:16:34,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4645b735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:34, skipping insertion in model container [2020-10-24 14:16:34,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:34" (3/3) ... [2020-10-24 14:16:34,220 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2020-10-24 14:16:34,233 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:34,239 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-10-24 14:16:34,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-10-24 14:16:34,285 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:34,285 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:34,286 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:34,286 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:34,286 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:34,286 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:34,286 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:34,287 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:34,317 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-24 14:16:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:16:34,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:34,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:16:34,325 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:34,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:34,332 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 14:16:34,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:34,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928987662] [2020-10-24 14:16:34,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:34,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:34,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:34,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:34,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928987662] [2020-10-24 14:16:34,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:34,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:34,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135124304] [2020-10-24 14:16:34,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:34,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:34,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:34,679 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 4 states. [2020-10-24 14:16:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:34,771 INFO L93 Difference]: Finished difference Result 307 states and 378 transitions. [2020-10-24 14:16:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:34,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-24 14:16:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:34,791 INFO L225 Difference]: With dead ends: 307 [2020-10-24 14:16:34,791 INFO L226 Difference]: Without dead ends: 131 [2020-10-24 14:16:34,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-24 14:16:34,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-10-24 14:16:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-24 14:16:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 130 transitions. [2020-10-24 14:16:34,844 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 130 transitions. Word has length 4 [2020-10-24 14:16:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:34,844 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 130 transitions. [2020-10-24 14:16:34,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 130 transitions. [2020-10-24 14:16:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:16:34,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:34,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:16:35,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:16:35,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:35,064 INFO L82 PathProgramCache]: Analyzing trace with hash 889691430, now seen corresponding path program 1 times [2020-10-24 14:16:35,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:35,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691634305] [2020-10-24 14:16:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:35,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:35,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:35,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:35,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691634305] [2020-10-24 14:16:35,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:35,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:35,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378828355] [2020-10-24 14:16:35,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:35,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:35,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:35,215 INFO L87 Difference]: Start difference. First operand 131 states and 130 transitions. Second operand 4 states. [2020-10-24 14:16:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:35,234 INFO L93 Difference]: Finished difference Result 131 states and 130 transitions. [2020-10-24 14:16:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:35,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-24 14:16:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:35,237 INFO L225 Difference]: With dead ends: 131 [2020-10-24 14:16:35,237 INFO L226 Difference]: Without dead ends: 129 [2020-10-24 14:16:35,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-24 14:16:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-10-24 14:16:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-24 14:16:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 128 transitions. [2020-10-24 14:16:35,260 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 128 transitions. Word has length 6 [2020-10-24 14:16:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:35,260 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 128 transitions. [2020-10-24 14:16:35,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 128 transitions. [2020-10-24 14:16:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:16:35,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:35,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:35,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:16:35,479 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:35,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash 295158664, now seen corresponding path program 1 times [2020-10-24 14:16:35,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:35,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154152592] [2020-10-24 14:16:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:35,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:35,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:35,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:35,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154152592] [2020-10-24 14:16:35,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:35,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:35,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095008580] [2020-10-24 14:16:35,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:35,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:35,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:35,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:35,666 INFO L87 Difference]: Start difference. First operand 129 states and 128 transitions. Second operand 4 states. [2020-10-24 14:16:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:35,717 INFO L93 Difference]: Finished difference Result 129 states and 128 transitions. [2020-10-24 14:16:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:35,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-24 14:16:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:35,721 INFO L225 Difference]: With dead ends: 129 [2020-10-24 14:16:35,721 INFO L226 Difference]: Without dead ends: 127 [2020-10-24 14:16:35,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:35,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-24 14:16:35,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-10-24 14:16:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-24 14:16:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 126 transitions. [2020-10-24 14:16:35,743 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 126 transitions. Word has length 8 [2020-10-24 14:16:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:35,744 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 126 transitions. [2020-10-24 14:16:35,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 126 transitions. [2020-10-24 14:16:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 14:16:35,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:35,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:35,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:16:35,960 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:35,962 INFO L82 PathProgramCache]: Analyzing trace with hash 179821258, now seen corresponding path program 1 times [2020-10-24 14:16:35,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:35,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195571508] [2020-10-24 14:16:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:36,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:36,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:36,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:36,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195571508] [2020-10-24 14:16:36,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:36,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:36,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114214094] [2020-10-24 14:16:36,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:36,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:36,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:36,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:36,301 INFO L87 Difference]: Start difference. First operand 127 states and 126 transitions. Second operand 4 states. [2020-10-24 14:16:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:36,328 INFO L93 Difference]: Finished difference Result 127 states and 126 transitions. [2020-10-24 14:16:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:36,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-24 14:16:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:36,332 INFO L225 Difference]: With dead ends: 127 [2020-10-24 14:16:36,332 INFO L226 Difference]: Without dead ends: 125 [2020-10-24 14:16:36,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:36,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-24 14:16:36,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-24 14:16:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-24 14:16:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 124 transitions. [2020-10-24 14:16:36,340 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 124 transitions. Word has length 10 [2020-10-24 14:16:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:36,340 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 124 transitions. [2020-10-24 14:16:36,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 124 transitions. [2020-10-24 14:16:36,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 14:16:36,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:36,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:36,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:16:36,557 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:36,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1009724140, now seen corresponding path program 1 times [2020-10-24 14:16:36,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:36,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483411332] [2020-10-24 14:16:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:36,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:36,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:36,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:36,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483411332] [2020-10-24 14:16:36,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:36,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:36,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992394296] [2020-10-24 14:16:36,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:36,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:36,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:36,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:36,786 INFO L87 Difference]: Start difference. First operand 125 states and 124 transitions. Second operand 4 states. [2020-10-24 14:16:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:36,815 INFO L93 Difference]: Finished difference Result 125 states and 124 transitions. [2020-10-24 14:16:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:36,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-24 14:16:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:36,823 INFO L225 Difference]: With dead ends: 125 [2020-10-24 14:16:36,825 INFO L226 Difference]: Without dead ends: 123 [2020-10-24 14:16:36,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:36,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-24 14:16:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-24 14:16:36,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-24 14:16:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 122 transitions. [2020-10-24 14:16:36,841 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 122 transitions. Word has length 12 [2020-10-24 14:16:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:36,845 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 122 transitions. [2020-10-24 14:16:36,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 122 transitions. [2020-10-24 14:16:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 14:16:36,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:36,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:37,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 14:16:37,061 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:37,062 INFO L82 PathProgramCache]: Analyzing trace with hash -317522962, now seen corresponding path program 1 times [2020-10-24 14:16:37,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:37,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852154348] [2020-10-24 14:16:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:37,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:37,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:37,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:37,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852154348] [2020-10-24 14:16:37,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:37,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:37,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393711340] [2020-10-24 14:16:37,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:37,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:37,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:37,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:37,308 INFO L87 Difference]: Start difference. First operand 123 states and 122 transitions. Second operand 4 states. [2020-10-24 14:16:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:37,338 INFO L93 Difference]: Finished difference Result 123 states and 122 transitions. [2020-10-24 14:16:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:37,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-24 14:16:37,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:37,342 INFO L225 Difference]: With dead ends: 123 [2020-10-24 14:16:37,342 INFO L226 Difference]: Without dead ends: 121 [2020-10-24 14:16:37,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:37,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-24 14:16:37,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-10-24 14:16:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-24 14:16:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 120 transitions. [2020-10-24 14:16:37,350 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 120 transitions. Word has length 14 [2020-10-24 14:16:37,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:37,350 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 120 transitions. [2020-10-24 14:16:37,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 120 transitions. [2020-10-24 14:16:37,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 14:16:37,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:37,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:37,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 14:16:37,568 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:37,570 INFO L82 PathProgramCache]: Analyzing trace with hash -196700720, now seen corresponding path program 1 times [2020-10-24 14:16:37,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250296454] [2020-10-24 14:16:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:37,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:37,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:37,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:37,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250296454] [2020-10-24 14:16:37,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:37,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:37,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456117027] [2020-10-24 14:16:37,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:37,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:37,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:37,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:37,852 INFO L87 Difference]: Start difference. First operand 121 states and 120 transitions. Second operand 4 states. [2020-10-24 14:16:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:37,879 INFO L93 Difference]: Finished difference Result 121 states and 120 transitions. [2020-10-24 14:16:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:37,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-24 14:16:37,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:37,881 INFO L225 Difference]: With dead ends: 121 [2020-10-24 14:16:37,881 INFO L226 Difference]: Without dead ends: 119 [2020-10-24 14:16:37,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-24 14:16:37,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-24 14:16:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-24 14:16:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 118 transitions. [2020-10-24 14:16:37,888 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 118 transitions. Word has length 16 [2020-10-24 14:16:37,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:37,888 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 118 transitions. [2020-10-24 14:16:37,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:37,888 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 118 transitions. [2020-10-24 14:16:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 14:16:37,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:37,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:38,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 14:16:38,104 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:38,106 INFO L82 PathProgramCache]: Analyzing trace with hash -50642798, now seen corresponding path program 1 times [2020-10-24 14:16:38,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:38,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918041189] [2020-10-24 14:16:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:38,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:38,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:38,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:38,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918041189] [2020-10-24 14:16:38,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:38,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:38,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126747984] [2020-10-24 14:16:38,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:38,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:38,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:38,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:38,406 INFO L87 Difference]: Start difference. First operand 119 states and 118 transitions. Second operand 4 states. [2020-10-24 14:16:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:38,442 INFO L93 Difference]: Finished difference Result 119 states and 118 transitions. [2020-10-24 14:16:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:38,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-24 14:16:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:38,448 INFO L225 Difference]: With dead ends: 119 [2020-10-24 14:16:38,448 INFO L226 Difference]: Without dead ends: 117 [2020-10-24 14:16:38,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-24 14:16:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-24 14:16:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-24 14:16:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 116 transitions. [2020-10-24 14:16:38,465 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 116 transitions. Word has length 18 [2020-10-24 14:16:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:38,467 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 116 transitions. [2020-10-24 14:16:38,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 116 transitions. [2020-10-24 14:16:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-24 14:16:38,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:38,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:38,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 14:16:38,672 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:38,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1422900172, now seen corresponding path program 1 times [2020-10-24 14:16:38,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:38,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786366384] [2020-10-24 14:16:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:38,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:38,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:38,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:38,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:38,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786366384] [2020-10-24 14:16:38,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:38,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:38,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410923857] [2020-10-24 14:16:38,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:38,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:38,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:38,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:38,957 INFO L87 Difference]: Start difference. First operand 117 states and 116 transitions. Second operand 4 states. [2020-10-24 14:16:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:38,986 INFO L93 Difference]: Finished difference Result 117 states and 116 transitions. [2020-10-24 14:16:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:38,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-24 14:16:38,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:38,990 INFO L225 Difference]: With dead ends: 117 [2020-10-24 14:16:38,990 INFO L226 Difference]: Without dead ends: 115 [2020-10-24 14:16:38,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-24 14:16:38,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-24 14:16:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-24 14:16:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 114 transitions. [2020-10-24 14:16:38,995 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 114 transitions. Word has length 20 [2020-10-24 14:16:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:38,995 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 114 transitions. [2020-10-24 14:16:38,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 114 transitions. [2020-10-24 14:16:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-24 14:16:38,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:38,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:39,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-24 14:16:39,212 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:39,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1607276362, now seen corresponding path program 1 times [2020-10-24 14:16:39,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:39,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603806819] [2020-10-24 14:16:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:39,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:39,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:39,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:39,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603806819] [2020-10-24 14:16:39,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:39,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:39,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050431460] [2020-10-24 14:16:39,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:39,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:39,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:39,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:39,531 INFO L87 Difference]: Start difference. First operand 115 states and 114 transitions. Second operand 4 states. [2020-10-24 14:16:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:39,553 INFO L93 Difference]: Finished difference Result 115 states and 114 transitions. [2020-10-24 14:16:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:39,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-24 14:16:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:39,556 INFO L225 Difference]: With dead ends: 115 [2020-10-24 14:16:39,556 INFO L226 Difference]: Without dead ends: 113 [2020-10-24 14:16:39,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:39,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-24 14:16:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-24 14:16:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-24 14:16:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 112 transitions. [2020-10-24 14:16:39,560 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 112 transitions. Word has length 22 [2020-10-24 14:16:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:39,560 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 112 transitions. [2020-10-24 14:16:39,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 112 transitions. [2020-10-24 14:16:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-24 14:16:39,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:39,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:39,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-24 14:16:39,771 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:39,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1595831832, now seen corresponding path program 1 times [2020-10-24 14:16:39,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:39,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967651929] [2020-10-24 14:16:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:40,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:40,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:40,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:40,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967651929] [2020-10-24 14:16:40,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:40,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:40,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190432177] [2020-10-24 14:16:40,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:40,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:40,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:40,092 INFO L87 Difference]: Start difference. First operand 113 states and 112 transitions. Second operand 4 states. [2020-10-24 14:16:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:40,123 INFO L93 Difference]: Finished difference Result 113 states and 112 transitions. [2020-10-24 14:16:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:40,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-24 14:16:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:40,126 INFO L225 Difference]: With dead ends: 113 [2020-10-24 14:16:40,126 INFO L226 Difference]: Without dead ends: 111 [2020-10-24 14:16:40,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:40,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-24 14:16:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-24 14:16:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-24 14:16:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 110 transitions. [2020-10-24 14:16:40,136 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 110 transitions. Word has length 24 [2020-10-24 14:16:40,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:40,136 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 110 transitions. [2020-10-24 14:16:40,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 110 transitions. [2020-10-24 14:16:40,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-24 14:16:40,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:40,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:40,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-24 14:16:40,340 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:40,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:40,341 INFO L82 PathProgramCache]: Analyzing trace with hash 291255386, now seen corresponding path program 1 times [2020-10-24 14:16:40,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:40,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174978253] [2020-10-24 14:16:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:40,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:40,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:40,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:40,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174978253] [2020-10-24 14:16:40,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:40,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015058541] [2020-10-24 14:16:40,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:40,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:40,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:40,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:40,699 INFO L87 Difference]: Start difference. First operand 111 states and 110 transitions. Second operand 4 states. [2020-10-24 14:16:40,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:40,723 INFO L93 Difference]: Finished difference Result 111 states and 110 transitions. [2020-10-24 14:16:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:40,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-24 14:16:40,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:40,725 INFO L225 Difference]: With dead ends: 111 [2020-10-24 14:16:40,726 INFO L226 Difference]: Without dead ends: 109 [2020-10-24 14:16:40,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-24 14:16:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-24 14:16:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-24 14:16:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 108 transitions. [2020-10-24 14:16:40,729 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 108 transitions. Word has length 26 [2020-10-24 14:16:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:40,729 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 108 transitions. [2020-10-24 14:16:40,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 108 transitions. [2020-10-24 14:16:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-24 14:16:40,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:40,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:40,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-24 14:16:40,941 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:40,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:40,943 INFO L82 PathProgramCache]: Analyzing trace with hash 723741564, now seen corresponding path program 1 times [2020-10-24 14:16:40,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:40,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100137990] [2020-10-24 14:16:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:41,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:41,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:41,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:41,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100137990] [2020-10-24 14:16:41,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:41,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:41,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784136716] [2020-10-24 14:16:41,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:41,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:41,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:41,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:41,369 INFO L87 Difference]: Start difference. First operand 109 states and 108 transitions. Second operand 4 states. [2020-10-24 14:16:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:41,392 INFO L93 Difference]: Finished difference Result 109 states and 108 transitions. [2020-10-24 14:16:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:41,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-24 14:16:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:41,395 INFO L225 Difference]: With dead ends: 109 [2020-10-24 14:16:41,395 INFO L226 Difference]: Without dead ends: 107 [2020-10-24 14:16:41,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:41,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-24 14:16:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-24 14:16:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-24 14:16:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 106 transitions. [2020-10-24 14:16:41,399 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 106 transitions. Word has length 28 [2020-10-24 14:16:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:41,400 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 106 transitions. [2020-10-24 14:16:41,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 106 transitions. [2020-10-24 14:16:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-24 14:16:41,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:41,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:41,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-24 14:16:41,614 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:41,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:41,616 INFO L82 PathProgramCache]: Analyzing trace with hash -268868738, now seen corresponding path program 1 times [2020-10-24 14:16:41,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:41,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255522014] [2020-10-24 14:16:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:41,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:41,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:41,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:41,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255522014] [2020-10-24 14:16:41,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:41,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:41,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252580679] [2020-10-24 14:16:41,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:41,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:41,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:41,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:41,991 INFO L87 Difference]: Start difference. First operand 107 states and 106 transitions. Second operand 4 states. [2020-10-24 14:16:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:42,020 INFO L93 Difference]: Finished difference Result 107 states and 106 transitions. [2020-10-24 14:16:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:42,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-24 14:16:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:42,028 INFO L225 Difference]: With dead ends: 107 [2020-10-24 14:16:42,028 INFO L226 Difference]: Without dead ends: 105 [2020-10-24 14:16:42,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-24 14:16:42,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-24 14:16:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-24 14:16:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 104 transitions. [2020-10-24 14:16:42,034 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 104 transitions. Word has length 30 [2020-10-24 14:16:42,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:42,035 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 104 transitions. [2020-10-24 14:16:42,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 104 transitions. [2020-10-24 14:16:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-24 14:16:42,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:42,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:42,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-24 14:16:42,253 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:42,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:42,254 INFO L82 PathProgramCache]: Analyzing trace with hash -684628896, now seen corresponding path program 1 times [2020-10-24 14:16:42,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:42,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437059783] [2020-10-24 14:16:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:42,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:42,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:42,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437059783] [2020-10-24 14:16:42,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:42,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:42,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858279330] [2020-10-24 14:16:42,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:42,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:42,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:42,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:42,588 INFO L87 Difference]: Start difference. First operand 105 states and 104 transitions. Second operand 4 states. [2020-10-24 14:16:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:42,618 INFO L93 Difference]: Finished difference Result 105 states and 104 transitions. [2020-10-24 14:16:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:42,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-24 14:16:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:42,621 INFO L225 Difference]: With dead ends: 105 [2020-10-24 14:16:42,621 INFO L226 Difference]: Without dead ends: 103 [2020-10-24 14:16:42,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-24 14:16:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-24 14:16:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-24 14:16:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 102 transitions. [2020-10-24 14:16:42,625 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 102 transitions. Word has length 32 [2020-10-24 14:16:42,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:42,625 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 102 transitions. [2020-10-24 14:16:42,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 102 transitions. [2020-10-24 14:16:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-24 14:16:42,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:42,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:42,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-24 14:16:42,827 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:42,828 INFO L82 PathProgramCache]: Analyzing trace with hash -798181854, now seen corresponding path program 1 times [2020-10-24 14:16:42,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:42,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148511193] [2020-10-24 14:16:42,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:43,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:43,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:43,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:43,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148511193] [2020-10-24 14:16:43,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:43,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:43,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974926308] [2020-10-24 14:16:43,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:43,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:43,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:43,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:43,232 INFO L87 Difference]: Start difference. First operand 103 states and 102 transitions. Second operand 4 states. [2020-10-24 14:16:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:43,260 INFO L93 Difference]: Finished difference Result 103 states and 102 transitions. [2020-10-24 14:16:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:43,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-24 14:16:43,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:43,263 INFO L225 Difference]: With dead ends: 103 [2020-10-24 14:16:43,263 INFO L226 Difference]: Without dead ends: 101 [2020-10-24 14:16:43,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:43,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-24 14:16:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-10-24 14:16:43,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-24 14:16:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 100 transitions. [2020-10-24 14:16:43,267 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 100 transitions. Word has length 34 [2020-10-24 14:16:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:43,267 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 100 transitions. [2020-10-24 14:16:43,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 100 transitions. [2020-10-24 14:16:43,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-24 14:16:43,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:43,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:43,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-24 14:16:43,470 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:43,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1746575556, now seen corresponding path program 1 times [2020-10-24 14:16:43,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:43,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721254657] [2020-10-24 14:16:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:43,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:43,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:43,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:43,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721254657] [2020-10-24 14:16:43,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:43,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:43,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884117053] [2020-10-24 14:16:43,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:43,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:43,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:43,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:43,844 INFO L87 Difference]: Start difference. First operand 101 states and 100 transitions. Second operand 4 states. [2020-10-24 14:16:43,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:43,868 INFO L93 Difference]: Finished difference Result 101 states and 100 transitions. [2020-10-24 14:16:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:43,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-24 14:16:43,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:43,871 INFO L225 Difference]: With dead ends: 101 [2020-10-24 14:16:43,871 INFO L226 Difference]: Without dead ends: 99 [2020-10-24 14:16:43,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:43,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-24 14:16:43,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-24 14:16:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-24 14:16:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 98 transitions. [2020-10-24 14:16:43,875 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 98 transitions. Word has length 36 [2020-10-24 14:16:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:43,876 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 98 transitions. [2020-10-24 14:16:43,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 98 transitions. [2020-10-24 14:16:43,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-24 14:16:43,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:43,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:44,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-10-24 14:16:44,089 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:44,090 INFO L82 PathProgramCache]: Analyzing trace with hash -872911802, now seen corresponding path program 1 times [2020-10-24 14:16:44,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:44,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738765371] [2020-10-24 14:16:44,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:44,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:44,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:44,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:44,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738765371] [2020-10-24 14:16:44,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:44,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:44,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224289451] [2020-10-24 14:16:44,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:44,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:44,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:44,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:44,512 INFO L87 Difference]: Start difference. First operand 99 states and 98 transitions. Second operand 4 states. [2020-10-24 14:16:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:44,541 INFO L93 Difference]: Finished difference Result 99 states and 98 transitions. [2020-10-24 14:16:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:44,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-24 14:16:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:44,543 INFO L225 Difference]: With dead ends: 99 [2020-10-24 14:16:44,543 INFO L226 Difference]: Without dead ends: 97 [2020-10-24 14:16:44,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-24 14:16:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-24 14:16:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-24 14:16:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 96 transitions. [2020-10-24 14:16:44,546 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 96 transitions. Word has length 38 [2020-10-24 14:16:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:44,546 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 96 transitions. [2020-10-24 14:16:44,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 96 transitions. [2020-10-24 14:16:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-24 14:16:44,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:44,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:44,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-10-24 14:16:44,756 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:44,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1117437255, now seen corresponding path program 1 times [2020-10-24 14:16:44,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:44,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840340642] [2020-10-24 14:16:44,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:45,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:45,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:45,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:45,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840340642] [2020-10-24 14:16:45,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:45,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:16:45,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431570149] [2020-10-24 14:16:45,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:16:45,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:45,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:16:45,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:45,184 INFO L87 Difference]: Start difference. First operand 97 states and 96 transitions. Second operand 4 states. [2020-10-24 14:16:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:45,334 INFO L93 Difference]: Finished difference Result 97 states and 96 transitions. [2020-10-24 14:16:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:16:45,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-24 14:16:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:45,335 INFO L225 Difference]: With dead ends: 97 [2020-10-24 14:16:45,335 INFO L226 Difference]: Without dead ends: 81 [2020-10-24 14:16:45,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:16:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-24 14:16:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-24 14:16:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-24 14:16:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 80 transitions. [2020-10-24 14:16:45,339 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 80 transitions. Word has length 41 [2020-10-24 14:16:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:45,339 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 80 transitions. [2020-10-24 14:16:45,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:16:45,339 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 80 transitions. [2020-10-24 14:16:45,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-24 14:16:45,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:45,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:45,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-24 14:16:45,542 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:45,543 INFO L82 PathProgramCache]: Analyzing trace with hash -597974797, now seen corresponding path program 1 times [2020-10-24 14:16:45,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:45,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362961386] [2020-10-24 14:16:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:45,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:45,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:46,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:46,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362961386] [2020-10-24 14:16:46,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:46,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:46,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593672295] [2020-10-24 14:16:46,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:46,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:46,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:46,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:46,133 INFO L87 Difference]: Start difference. First operand 81 states and 80 transitions. Second operand 6 states. [2020-10-24 14:16:46,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:46,344 INFO L93 Difference]: Finished difference Result 81 states and 80 transitions. [2020-10-24 14:16:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:46,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-24 14:16:46,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:46,346 INFO L225 Difference]: With dead ends: 81 [2020-10-24 14:16:46,346 INFO L226 Difference]: Without dead ends: 79 [2020-10-24 14:16:46,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-24 14:16:46,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-24 14:16:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-24 14:16:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 78 transitions. [2020-10-24 14:16:46,349 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 78 transitions. Word has length 45 [2020-10-24 14:16:46,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:46,349 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 78 transitions. [2020-10-24 14:16:46,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 78 transitions. [2020-10-24 14:16:46,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-24 14:16:46,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:46,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:46,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-24 14:16:46,559 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:46,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1263410663, now seen corresponding path program 1 times [2020-10-24 14:16:46,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:46,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573561875] [2020-10-24 14:16:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:46,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:46,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:47,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:47,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573561875] [2020-10-24 14:16:47,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:47,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:47,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286740224] [2020-10-24 14:16:47,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:47,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:47,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:47,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:47,167 INFO L87 Difference]: Start difference. First operand 79 states and 78 transitions. Second operand 6 states. [2020-10-24 14:16:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:47,411 INFO L93 Difference]: Finished difference Result 79 states and 78 transitions. [2020-10-24 14:16:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:47,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-24 14:16:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:47,415 INFO L225 Difference]: With dead ends: 79 [2020-10-24 14:16:47,415 INFO L226 Difference]: Without dead ends: 77 [2020-10-24 14:16:47,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:47,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-24 14:16:47,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-24 14:16:47,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-24 14:16:47,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 76 transitions. [2020-10-24 14:16:47,420 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 76 transitions. Word has length 48 [2020-10-24 14:16:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:47,421 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 76 transitions. [2020-10-24 14:16:47,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:47,421 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 76 transitions. [2020-10-24 14:16:47,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-24 14:16:47,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:47,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1] [2020-10-24 14:16:47,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2020-10-24 14:16:47,623 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:47,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:47,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1474911720, now seen corresponding path program 1 times [2020-10-24 14:16:47,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:47,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937527546] [2020-10-24 14:16:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:48,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:16:48,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:48,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:48,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937527546] [2020-10-24 14:16:48,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:48,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-10-24 14:16:48,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862560799] [2020-10-24 14:16:48,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:16:48,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:48,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:16:48,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:16:48,151 INFO L87 Difference]: Start difference. First operand 77 states and 76 transitions. Second operand 5 states. [2020-10-24 14:16:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:48,331 INFO L93 Difference]: Finished difference Result 77 states and 76 transitions. [2020-10-24 14:16:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:48,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-24 14:16:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:48,333 INFO L225 Difference]: With dead ends: 77 [2020-10-24 14:16:48,334 INFO L226 Difference]: Without dead ends: 75 [2020-10-24 14:16:48,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:48,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-24 14:16:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-24 14:16:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-24 14:16:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 74 transitions. [2020-10-24 14:16:48,336 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 74 transitions. Word has length 51 [2020-10-24 14:16:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:48,337 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 74 transitions. [2020-10-24 14:16:48,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:16:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 74 transitions. [2020-10-24 14:16:48,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-24 14:16:48,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:48,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1] [2020-10-24 14:16:48,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2020-10-24 14:16:48,539 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:48,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1585898428, now seen corresponding path program 1 times [2020-10-24 14:16:48,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:48,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327732652] [2020-10-24 14:16:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:48,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:16:48,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:49,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:49,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327732652] [2020-10-24 14:16:49,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:49,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-10-24 14:16:49,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234637756] [2020-10-24 14:16:49,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:16:49,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:49,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:16:49,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:16:49,088 INFO L87 Difference]: Start difference. First operand 75 states and 74 transitions. Second operand 5 states. [2020-10-24 14:16:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:49,331 INFO L93 Difference]: Finished difference Result 75 states and 74 transitions. [2020-10-24 14:16:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:49,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-24 14:16:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:49,333 INFO L225 Difference]: With dead ends: 75 [2020-10-24 14:16:49,333 INFO L226 Difference]: Without dead ends: 73 [2020-10-24 14:16:49,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-24 14:16:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-24 14:16:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-24 14:16:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 72 transitions. [2020-10-24 14:16:49,335 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 72 transitions. Word has length 54 [2020-10-24 14:16:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:49,336 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 72 transitions. [2020-10-24 14:16:49,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:16:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 72 transitions. [2020-10-24 14:16:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-24 14:16:49,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:49,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:49,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2020-10-24 14:16:49,542 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:49,543 INFO L82 PathProgramCache]: Analyzing trace with hash 866119389, now seen corresponding path program 1 times [2020-10-24 14:16:49,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:49,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783403566] [2020-10-24 14:16:49,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:49,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:16:49,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:50,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:50,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783403566] [2020-10-24 14:16:50,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:50,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:50,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359468680] [2020-10-24 14:16:50,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:50,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:50,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:50,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:50,192 INFO L87 Difference]: Start difference. First operand 73 states and 72 transitions. Second operand 6 states. [2020-10-24 14:16:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:50,469 INFO L93 Difference]: Finished difference Result 73 states and 72 transitions. [2020-10-24 14:16:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:50,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-10-24 14:16:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:50,471 INFO L225 Difference]: With dead ends: 73 [2020-10-24 14:16:50,471 INFO L226 Difference]: Without dead ends: 71 [2020-10-24 14:16:50,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-24 14:16:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-24 14:16:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-24 14:16:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 70 transitions. [2020-10-24 14:16:50,473 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 70 transitions. Word has length 57 [2020-10-24 14:16:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:50,474 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 70 transitions. [2020-10-24 14:16:50,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 70 transitions. [2020-10-24 14:16:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-24 14:16:50,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:50,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:50,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2020-10-24 14:16:50,683 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:50,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1594468975, now seen corresponding path program 1 times [2020-10-24 14:16:50,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:50,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615051071] [2020-10-24 14:16:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 26 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:51,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:16:51,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:51,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:51,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615051071] [2020-10-24 14:16:51,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:51,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:51,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71153690] [2020-10-24 14:16:51,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:51,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:51,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:51,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:51,285 INFO L87 Difference]: Start difference. First operand 71 states and 70 transitions. Second operand 6 states. [2020-10-24 14:16:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:51,473 INFO L93 Difference]: Finished difference Result 71 states and 70 transitions. [2020-10-24 14:16:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:51,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-10-24 14:16:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:51,474 INFO L225 Difference]: With dead ends: 71 [2020-10-24 14:16:51,474 INFO L226 Difference]: Without dead ends: 69 [2020-10-24 14:16:51,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-24 14:16:51,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-24 14:16:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-24 14:16:51,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 68 transitions. [2020-10-24 14:16:51,476 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 68 transitions. Word has length 60 [2020-10-24 14:16:51,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:51,477 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 68 transitions. [2020-10-24 14:16:51,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:51,477 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 68 transitions. [2020-10-24 14:16:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-24 14:16:51,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:51,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:51,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 mathsat -unsat_core_generation=3 [2020-10-24 14:16:51,684 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:51,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:51,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1519408082, now seen corresponding path program 1 times [2020-10-24 14:16:51,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:51,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655507315] [2020-10-24 14:16:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 27 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:52,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:52,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:52,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:52,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655507315] [2020-10-24 14:16:52,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:52,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:52,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504129847] [2020-10-24 14:16:52,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:52,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:52,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:52,443 INFO L87 Difference]: Start difference. First operand 69 states and 68 transitions. Second operand 6 states. [2020-10-24 14:16:52,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:52,818 INFO L93 Difference]: Finished difference Result 69 states and 68 transitions. [2020-10-24 14:16:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:52,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-24 14:16:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:52,819 INFO L225 Difference]: With dead ends: 69 [2020-10-24 14:16:52,819 INFO L226 Difference]: Without dead ends: 67 [2020-10-24 14:16:52,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-24 14:16:52,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-24 14:16:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-24 14:16:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 66 transitions. [2020-10-24 14:16:52,821 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 66 transitions. Word has length 63 [2020-10-24 14:16:52,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:52,822 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 66 transitions. [2020-10-24 14:16:52,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 66 transitions. [2020-10-24 14:16:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-24 14:16:52,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:52,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:53,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 mathsat -unsat_core_generation=3 [2020-10-24 14:16:53,027 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:53,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:53,028 INFO L82 PathProgramCache]: Analyzing trace with hash 32207718, now seen corresponding path program 1 times [2020-10-24 14:16:53,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:53,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088034991] [2020-10-24 14:16:53,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:53,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:16:53,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:53,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:53,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088034991] [2020-10-24 14:16:53,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:53,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:53,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754664224] [2020-10-24 14:16:53,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:53,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:53,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:53,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:53,735 INFO L87 Difference]: Start difference. First operand 67 states and 66 transitions. Second operand 6 states. [2020-10-24 14:16:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:54,039 INFO L93 Difference]: Finished difference Result 67 states and 66 transitions. [2020-10-24 14:16:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:54,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-10-24 14:16:54,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:54,040 INFO L225 Difference]: With dead ends: 67 [2020-10-24 14:16:54,040 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:16:54,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:16:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:16:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:16:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:16:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:16:54,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2020-10-24 14:16:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:54,042 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:16:54,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:16:54,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:16:54,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 mathsat -unsat_core_generation=3 [2020-10-24 14:16:54,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:16:54,249 INFO L274 CegarLoopResult]: For program point L35-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-10-24 14:16:54,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L37-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,251 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-24 14:16:54,252 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,253 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,253 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,253 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,253 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,254 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,254 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,254 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,254 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-32(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-33(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,255 INFO L274 CegarLoopResult]: For program point L4-34(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,256 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,256 INFO L274 CegarLoopResult]: For program point L4-35(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,256 INFO L274 CegarLoopResult]: For program point L4-36(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,256 INFO L274 CegarLoopResult]: For program point L4-37(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,256 INFO L274 CegarLoopResult]: For program point L4-38(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-39(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-40(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-41(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-42(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-43(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,257 INFO L274 CegarLoopResult]: For program point L4-44(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L4-45(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L4-46(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L4-47(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-10-24 14:16:54,258 INFO L274 CegarLoopResult]: For program point L4-48(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,259 INFO L274 CegarLoopResult]: For program point L4-49(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,259 INFO L274 CegarLoopResult]: For program point L4-50(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,259 INFO L274 CegarLoopResult]: For program point L4-51(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,259 INFO L274 CegarLoopResult]: For program point L4-52(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-53(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-54(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-55(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-56(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-57(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,260 INFO L274 CegarLoopResult]: For program point L4-58(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point L4-59(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point L4-60(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point L4-61(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point L4-62(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,261 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L6(lines 6 50) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L39-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L4-63(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L4-64(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L4-65(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L4-66(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,262 INFO L274 CegarLoopResult]: For program point L4-67(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L4-68(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L4-69(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L4-70(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L4-71(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-24 14:16:54,263 INFO L274 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-10-24 14:16:54,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point L41-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,265 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point L42-1(line 42) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-10-24 14:16:54,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-10-24 14:16:54,267 INFO L274 CegarLoopResult]: For program point L43-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-10-24 14:16:54,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point L45-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,269 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-24 14:16:54,270 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L30-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L47-2(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,271 INFO L274 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-10-24 14:16:54,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point L32-1(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-24 14:16:54,273 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point L33-1(lines 7 50) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-24 14:16:54,274 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,275 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-24 14:16:54,275 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-24 14:16:54,275 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-24 14:16:54,275 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-24 14:16:54,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:54 BoogieIcfgContainer [2020-10-24 14:16:54,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:16:54,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:16:54,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:16:54,293 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:16:54,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:34" (3/4) ... [2020-10-24 14:16:54,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:16:54,334 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 14:16:54,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:16:54,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:16:54,336 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:16:54,429 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:16:54,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:16:54,432 INFO L168 Benchmark]: Toolchain (without parser) took 22149.11 ms. Allocated memory was 44.0 MB in the beginning and 81.8 MB in the end (delta: 37.7 MB). Free memory was 27.2 MB in the beginning and 25.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,432 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:54,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.62 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 23.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.02 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 20.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,433 INFO L168 Benchmark]: Boogie Preprocessor took 64.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 37.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,434 INFO L168 Benchmark]: RCFGBuilder took 1359.04 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 28.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,434 INFO L168 Benchmark]: TraceAbstraction took 20080.40 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 28.1 MB in the beginning and 32.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,435 INFO L168 Benchmark]: Witness Printer took 136.40 ms. Allocated memory is still 81.8 MB. Free memory was 32.9 MB in the beginning and 25.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:54,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.62 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 23.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.02 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 20.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 37.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1359.04 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 28.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20080.40 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 28.1 MB in the beginning and 32.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Witness Printer took 136.40 ms. Allocated memory is still 81.8 MB. Free memory was 32.9 MB in the beginning and 25.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 176 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.9s, OverallIterations: 27, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2502 SDtfs, 249 SDslu, 3024 SDs, 0 SdLazy, 462 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1680 GetRequests, 1602 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 27 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1672 ConstructedInterpolants, 236 QuantifiedInterpolants, 513330 SizeOfPredicates, 94 NumberOfNonLiveVariables, 2089 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 54 InterpolantComputations, 54 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...