./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i --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/float-flags-simp1.i -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 e232a229fd97a588b0965972f35cc759d5e34261 ........................................................................................................................................................................ 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/float-flags-simp1.i -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 e232a229fd97a588b0965972f35cc759d5e34261 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:06:40,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:06:40,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:06:40,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:06:40,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:06:40,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:06:40,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:06:40,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:06:40,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:06:40,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:06:40,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:06:40,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:06:40,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:06:40,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:06:40,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:06:40,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:06:40,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:06:40,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:06:40,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:06:40,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:06:40,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:06:40,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:06:40,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:06:40,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:06:40,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:06:40,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:06:40,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:06:40,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:06:40,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:06:40,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:06:40,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:06:40,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:06:40,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:06:40,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:06:40,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:06:40,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:06:40,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:06:40,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:06:40,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:06:40,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:06:40,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:06:40,773 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 14:06:40,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:06:40,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:06:40,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:06:40,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:06:40,847 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:06:40,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:06:40,848 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:06:40,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:06:40,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:06:40,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:06:40,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:06:40,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:06:40,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:06:40,851 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:06:40,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:06:40,852 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:06:40,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:06:40,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:06:40,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:06:40,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:06:40,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:06:40,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:06:40,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:06:40,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:06:40,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:06:40,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:06:40,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:06:40,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:06:40,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:06:40,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232a229fd97a588b0965972f35cc759d5e34261 [2020-10-24 14:06:41,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:06:41,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:06:41,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:06:41,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:06:41,304 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:06:41,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-10-24 14:06:41,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad254f85/244083cfe7e1465e91b430d97f2c9ec8/FLAGdcb90e14a [2020-10-24 14:06:42,284 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:06:42,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-10-24 14:06:42,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad254f85/244083cfe7e1465e91b430d97f2c9ec8/FLAGdcb90e14a [2020-10-24 14:06:42,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad254f85/244083cfe7e1465e91b430d97f2c9ec8 [2020-10-24 14:06:42,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:06:42,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:06:42,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:06:42,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:06:42,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:06:42,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:42" (1/1) ... [2020-10-24 14:06:42,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4ddd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:42, skipping insertion in model container [2020-10-24 14:06:42,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:42" (1/1) ... [2020-10-24 14:06:42,509 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:06:42,594 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:06:43,174 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1400) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1079) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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: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: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 14:06:43,180 INFO L168 Benchmark]: Toolchain (without parser) took 703.34 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 37.0 MB in the end (delta: -739.7 kB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:06:43,181 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:06:43,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.11 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 37.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:06:43,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.11 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 37.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) 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 14:06:45,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:06:45,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:06:45,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:06:45,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:06:45,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:06:45,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:06:45,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:06:45,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:06:45,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:06:45,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:06:45,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:06:45,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:06:45,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:06:45,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:06:45,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:06:45,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:06:45,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:06:45,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:06:45,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:06:45,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:06:45,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:06:45,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:06:45,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:06:45,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:06:45,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:06:45,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:06:45,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:06:45,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:06:45,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:06:45,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:06:45,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:06:45,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:06:45,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:06:45,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:06:45,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:06:45,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:06:45,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:06:45,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:06:45,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:06:45,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:06:45,626 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 14:06:45,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:06:45,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:06:45,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:06:45,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:06:45,659 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:06:45,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:06:45,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:06:45,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:06:45,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:06:45,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:06:45,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:06:45,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:06:45,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:06:45,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:06:45,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:06:45,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:06:45,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:06:45,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:06:45,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:06:45,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:06:45,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:06:45,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:06:45,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:06:45,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:06:45,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:06:45,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:06:45,666 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:06:45,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:06:45,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:06:45,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:06:45,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:06:45,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e232a229fd97a588b0965972f35cc759d5e34261 [2020-10-24 14:06:46,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:06:46,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:06:46,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:06:46,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:06:46,158 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:06:46,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-10-24 14:06:46,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8d7099ab/e8d64abff23f46d8973e6985e9943373/FLAG58687ad80 [2020-10-24 14:06:47,099 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:06:47,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-flags-simp1.i [2020-10-24 14:06:47,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8d7099ab/e8d64abff23f46d8973e6985e9943373/FLAG58687ad80 [2020-10-24 14:06:47,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8d7099ab/e8d64abff23f46d8973e6985e9943373 [2020-10-24 14:06:47,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:06:47,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:06:47,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:06:47,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:06:47,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:06:47,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:47" (1/1) ... [2020-10-24 14:06:47,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5612a2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:47, skipping insertion in model container [2020-10-24 14:06:47,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:47" (1/1) ... [2020-10-24 14:06:47,320 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:06:47,381 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:06:48,092 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:06:48,118 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:06:48,263 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:06:48,634 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:06:48,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48 WrapperNode [2020-10-24 14:06:48,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:06:48,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:06:48,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:06:48,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:06:48,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:06:48,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:06:48,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:06:48,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:06:48,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (1/1) ... [2020-10-24 14:06:48,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:06:48,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:06:48,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:06:48,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:06:48,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (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 14:06:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:06:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:06:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:06:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:06:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:06:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:06:50,053 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:06:50,053 INFO L298 CfgBuilder]: Removed 80 assume(true) statements. [2020-10-24 14:06:50,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:06:50 BoogieIcfgContainer [2020-10-24 14:06:50,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:06:50,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:06:50,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:06:50,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:06:50,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:06:47" (1/3) ... [2020-10-24 14:06:50,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6761b553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:06:50, skipping insertion in model container [2020-10-24 14:06:50,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:48" (2/3) ... [2020-10-24 14:06:50,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6761b553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:06:50, skipping insertion in model container [2020-10-24 14:06:50,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:06:50" (3/3) ... [2020-10-24 14:06:50,066 INFO L111 eAbstractionObserver]: Analyzing ICFG float-flags-simp1.i [2020-10-24 14:06:50,081 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:06:50,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-10-24 14:06:50,102 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-10-24 14:06:50,141 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:06:50,141 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:06:50,141 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:06:50,141 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:06:50,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:06:50,142 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:06:50,142 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:06:50,142 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:06:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-24 14:06:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:06:50,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:50,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:06:50,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:50,190 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-10-24 14:06:50,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:50,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223958814] [2020-10-24 14:06:50,206 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 14:06:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:50,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:06:50,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:50,406 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 14:06:50,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:50,511 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 14:06:50,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223958814] [2020-10-24 14:06:50,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:50,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:06:50,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658297746] [2020-10-24 14:06:50,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:06:50,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:50,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:06:50,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:06:50,538 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 6 states. [2020-10-24 14:06:51,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:51,049 INFO L93 Difference]: Finished difference Result 400 states and 544 transitions. [2020-10-24 14:06:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:06:51,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-24 14:06:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:51,065 INFO L225 Difference]: With dead ends: 400 [2020-10-24 14:06:51,066 INFO L226 Difference]: Without dead ends: 172 [2020-10-24 14:06:51,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 14:06:51,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-24 14:06:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-24 14:06:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-24 14:06:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 171 transitions. [2020-10-24 14:06:51,122 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 171 transitions. Word has length 5 [2020-10-24 14:06:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:51,123 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 171 transitions. [2020-10-24 14:06:51,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:06:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 171 transitions. [2020-10-24 14:06:51,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 14:06:51,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:51,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:06:51,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:06:51,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:51,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1231432625, now seen corresponding path program 1 times [2020-10-24 14:06:51,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:51,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522411043] [2020-10-24 14:06:51,365 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 14:06:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:51,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:06:51,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:51,491 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 14:06:51,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:51,509 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 14:06:51,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522411043] [2020-10-24 14:06:51,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:51,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:51,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354573458] [2020-10-24 14:06:51,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:51,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:51,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:51,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:51,514 INFO L87 Difference]: Start difference. First operand 172 states and 171 transitions. Second operand 4 states. [2020-10-24 14:06:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:51,538 INFO L93 Difference]: Finished difference Result 172 states and 171 transitions. [2020-10-24 14:06:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:51,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-24 14:06:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:51,542 INFO L225 Difference]: With dead ends: 172 [2020-10-24 14:06:51,542 INFO L226 Difference]: Without dead ends: 169 [2020-10-24 14:06:51,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 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 14:06:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-24 14:06:51,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-24 14:06:51,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-24 14:06:51,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 168 transitions. [2020-10-24 14:06:51,562 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 168 transitions. Word has length 11 [2020-10-24 14:06:51,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:51,563 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 168 transitions. [2020-10-24 14:06:51,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 168 transitions. [2020-10-24 14:06:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 14:06:51,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:51,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:06:51,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:06:51,776 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:51,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2014631005, now seen corresponding path program 1 times [2020-10-24 14:06:51,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:51,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120994980] [2020-10-24 14:06:51,778 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 14:06:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:52,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:06:52,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:52,161 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 14:06:52,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:52,182 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 14:06:52,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120994980] [2020-10-24 14:06:52,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:52,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:52,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239374663] [2020-10-24 14:06:52,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:52,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:52,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:52,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:52,185 INFO L87 Difference]: Start difference. First operand 169 states and 168 transitions. Second operand 4 states. [2020-10-24 14:06:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:52,216 INFO L93 Difference]: Finished difference Result 169 states and 168 transitions. [2020-10-24 14:06:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:52,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 14:06:52,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:52,219 INFO L225 Difference]: With dead ends: 169 [2020-10-24 14:06:52,219 INFO L226 Difference]: Without dead ends: 166 [2020-10-24 14:06:52,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-24 14:06:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-24 14:06:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-24 14:06:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 165 transitions. [2020-10-24 14:06:52,230 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 165 transitions. Word has length 13 [2020-10-24 14:06:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:52,231 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 165 transitions. [2020-10-24 14:06:52,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 165 transitions. [2020-10-24 14:06:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 14:06:52,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:52,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:06:52,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:06:52,450 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:52,453 INFO L82 PathProgramCache]: Analyzing trace with hash -959444245, now seen corresponding path program 1 times [2020-10-24 14:06:52,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:52,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150487219] [2020-10-24 14:06:52,454 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 14:06:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:52,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:06:52,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:52,831 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 14:06:52,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:52,856 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 14:06:52,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150487219] [2020-10-24 14:06:52,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:52,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:52,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982168167] [2020-10-24 14:06:52,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:52,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:52,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:52,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:52,858 INFO L87 Difference]: Start difference. First operand 166 states and 165 transitions. Second operand 4 states. [2020-10-24 14:06:53,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:53,351 INFO L93 Difference]: Finished difference Result 166 states and 165 transitions. [2020-10-24 14:06:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:53,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-24 14:06:53,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:53,353 INFO L225 Difference]: With dead ends: 166 [2020-10-24 14:06:53,354 INFO L226 Difference]: Without dead ends: 163 [2020-10-24 14:06:53,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 14:06:53,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-24 14:06:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-24 14:06:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-24 14:06:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 162 transitions. [2020-10-24 14:06:53,364 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 162 transitions. Word has length 15 [2020-10-24 14:06:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:53,364 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 162 transitions. [2020-10-24 14:06:53,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 162 transitions. [2020-10-24 14:06:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 14:06:53,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:53,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:06:53,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:06:53,583 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1402460153, now seen corresponding path program 1 times [2020-10-24 14:06:53,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:53,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561339272] [2020-10-24 14:06:53,585 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 14:06:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:53,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:06:53,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:54,032 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 14:06:54,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:54,055 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 14:06:54,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561339272] [2020-10-24 14:06:54,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:54,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:54,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353031306] [2020-10-24 14:06:54,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:54,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:54,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:54,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:54,059 INFO L87 Difference]: Start difference. First operand 163 states and 162 transitions. Second operand 4 states. [2020-10-24 14:06:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:54,095 INFO L93 Difference]: Finished difference Result 163 states and 162 transitions. [2020-10-24 14:06:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:54,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-24 14:06:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:54,097 INFO L225 Difference]: With dead ends: 163 [2020-10-24 14:06:54,098 INFO L226 Difference]: Without dead ends: 160 [2020-10-24 14:06:54,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:54,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-24 14:06:54,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-24 14:06:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-24 14:06:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 159 transitions. [2020-10-24 14:06:54,106 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 159 transitions. Word has length 17 [2020-10-24 14:06:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:54,106 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 159 transitions. [2020-10-24 14:06:54,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 159 transitions. [2020-10-24 14:06:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 14:06:54,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:54,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:06:54,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 14:06:54,321 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:54,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:54,322 INFO L82 PathProgramCache]: Analyzing trace with hash -845112441, now seen corresponding path program 1 times [2020-10-24 14:06:54,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:54,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590614797] [2020-10-24 14:06:54,324 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 14:06:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:54,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:06:54,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:54,769 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 14:06:54,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:54,796 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 14:06:54,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590614797] [2020-10-24 14:06:54,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:54,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:54,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930521614] [2020-10-24 14:06:54,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:54,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:54,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:54,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:54,801 INFO L87 Difference]: Start difference. First operand 160 states and 159 transitions. Second operand 4 states. [2020-10-24 14:06:54,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:54,850 INFO L93 Difference]: Finished difference Result 160 states and 159 transitions. [2020-10-24 14:06:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:54,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-24 14:06:54,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:54,855 INFO L225 Difference]: With dead ends: 160 [2020-10-24 14:06:54,856 INFO L226 Difference]: Without dead ends: 157 [2020-10-24 14:06:54,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-24 14:06:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-10-24 14:06:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-24 14:06:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 156 transitions. [2020-10-24 14:06:54,871 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 156 transitions. Word has length 19 [2020-10-24 14:06:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:54,873 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 156 transitions. [2020-10-24 14:06:54,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 156 transitions. [2020-10-24 14:06:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-24 14:06:54,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:54,876 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] [2020-10-24 14:06:55,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 14:06:55,077 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:55,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:55,078 INFO L82 PathProgramCache]: Analyzing trace with hash -393824875, now seen corresponding path program 1 times [2020-10-24 14:06:55,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:55,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113845742] [2020-10-24 14:06:55,083 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 14:06:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:55,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:06:55,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:55,530 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 14:06:55,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:55,547 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 14:06:55,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113845742] [2020-10-24 14:06:55,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:55,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:55,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734165076] [2020-10-24 14:06:55,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:55,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:55,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:55,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:55,550 INFO L87 Difference]: Start difference. First operand 157 states and 156 transitions. Second operand 4 states. [2020-10-24 14:06:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:55,581 INFO L93 Difference]: Finished difference Result 157 states and 156 transitions. [2020-10-24 14:06:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:55,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-24 14:06:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:55,583 INFO L225 Difference]: With dead ends: 157 [2020-10-24 14:06:55,583 INFO L226 Difference]: Without dead ends: 154 [2020-10-24 14:06:55,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-24 14:06:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-24 14:06:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-24 14:06:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 153 transitions. [2020-10-24 14:06:55,589 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 153 transitions. Word has length 21 [2020-10-24 14:06:55,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:55,589 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 153 transitions. [2020-10-24 14:06:55,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 153 transitions. [2020-10-24 14:06:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-24 14:06:55,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:55,591 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] [2020-10-24 14:06:55,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 14:06:55,793 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:55,794 INFO L82 PathProgramCache]: Analyzing trace with hash -498170333, now seen corresponding path program 1 times [2020-10-24 14:06:55,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:55,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540198296] [2020-10-24 14:06:55,796 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 14:06:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:56,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:06:56,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:56,472 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 14:06:56,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:56,491 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 14:06:56,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540198296] [2020-10-24 14:06:56,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:56,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:56,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250846776] [2020-10-24 14:06:56,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:56,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:56,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:56,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:56,494 INFO L87 Difference]: Start difference. First operand 154 states and 153 transitions. Second operand 4 states. [2020-10-24 14:06:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:06:56,526 INFO L93 Difference]: Finished difference Result 154 states and 153 transitions. [2020-10-24 14:06:56,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:06:56,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-24 14:06:56,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:06:56,529 INFO L225 Difference]: With dead ends: 154 [2020-10-24 14:06:56,529 INFO L226 Difference]: Without dead ends: 151 [2020-10-24 14:06:56,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 14:06:56,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-24 14:06:56,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2020-10-24 14:06:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-24 14:06:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 150 transitions. [2020-10-24 14:06:56,534 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 150 transitions. Word has length 23 [2020-10-24 14:06:56,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:06:56,535 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 150 transitions. [2020-10-24 14:06:56,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:06:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 150 transitions. [2020-10-24 14:06:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-24 14:06:56,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:06:56,536 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] [2020-10-24 14:06:56,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 14:06:56,752 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:06:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:06:56,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1989907151, now seen corresponding path program 1 times [2020-10-24 14:06:56,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:06:56,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773588439] [2020-10-24 14:06:56,755 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 14:06:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:06:57,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:06:57,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:06:57,514 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 14:06:57,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:06:57,548 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 14:06:57,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773588439] [2020-10-24 14:06:57,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:06:57,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:06:57,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202184471] [2020-10-24 14:06:57,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:06:57,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:06:57,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:06:57,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:06:57,551 INFO L87 Difference]: Start difference. First operand 151 states and 150 transitions. Second operand 4 states. [2020-10-24 14:07:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:39,766 INFO L93 Difference]: Finished difference Result 151 states and 150 transitions. [2020-10-24 14:07:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:39,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-24 14:07:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:39,768 INFO L225 Difference]: With dead ends: 151 [2020-10-24 14:07:39,769 INFO L226 Difference]: Without dead ends: 148 [2020-10-24 14:07:39,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 14:07:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-24 14:07:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-24 14:07:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-24 14:07:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 147 transitions. [2020-10-24 14:07:39,774 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 147 transitions. Word has length 25 [2020-10-24 14:07:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:39,774 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 147 transitions. [2020-10-24 14:07:39,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 147 transitions. [2020-10-24 14:07:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-24 14:07:39,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:39,775 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] [2020-10-24 14:07:39,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-24 14:07:39,986 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:39,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:39,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1029911873, now seen corresponding path program 1 times [2020-10-24 14:07:39,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:39,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793186432] [2020-10-24 14:07:39,989 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 14:07:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:40,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:07:40,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:40,870 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 14:07:40,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:40,929 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 14:07:40,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793186432] [2020-10-24 14:07:40,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:40,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:40,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631919654] [2020-10-24 14:07:40,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:40,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:40,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:40,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:40,931 INFO L87 Difference]: Start difference. First operand 148 states and 147 transitions. Second operand 4 states. [2020-10-24 14:07:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:41,007 INFO L93 Difference]: Finished difference Result 148 states and 147 transitions. [2020-10-24 14:07:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:41,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-24 14:07:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:41,010 INFO L225 Difference]: With dead ends: 148 [2020-10-24 14:07:41,010 INFO L226 Difference]: Without dead ends: 145 [2020-10-24 14:07:41,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-24 14:07:41,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-24 14:07:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-24 14:07:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 144 transitions. [2020-10-24 14:07:41,016 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 144 transitions. Word has length 27 [2020-10-24 14:07:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:41,016 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 144 transitions. [2020-10-24 14:07:41,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 144 transitions. [2020-10-24 14:07:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-24 14:07:41,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:41,018 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] [2020-10-24 14:07:41,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-24 14:07:41,231 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:41,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1892417843, now seen corresponding path program 1 times [2020-10-24 14:07:41,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:41,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382798263] [2020-10-24 14:07:41,234 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 14:07:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:42,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:07:42,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:42,160 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 14:07:42,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:42,220 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 14:07:42,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382798263] [2020-10-24 14:07:42,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:42,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:42,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961112582] [2020-10-24 14:07:42,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:42,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:42,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:42,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:42,223 INFO L87 Difference]: Start difference. First operand 145 states and 144 transitions. Second operand 4 states. [2020-10-24 14:07:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:42,296 INFO L93 Difference]: Finished difference Result 145 states and 144 transitions. [2020-10-24 14:07:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:42,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-24 14:07:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:42,299 INFO L225 Difference]: With dead ends: 145 [2020-10-24 14:07:42,299 INFO L226 Difference]: Without dead ends: 142 [2020-10-24 14:07:42,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:42,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-24 14:07:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-10-24 14:07:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-24 14:07:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 141 transitions. [2020-10-24 14:07:42,303 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 141 transitions. Word has length 29 [2020-10-24 14:07:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:42,304 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 141 transitions. [2020-10-24 14:07:42,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 141 transitions. [2020-10-24 14:07:42,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-24 14:07:42,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:42,316 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] [2020-10-24 14:07:42,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-24 14:07:42,527 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:42,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:42,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1831966373, now seen corresponding path program 1 times [2020-10-24 14:07:42,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:42,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064206143] [2020-10-24 14:07:42,529 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 14:07:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:43,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:07:43,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:43,545 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 14:07:43,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:43,608 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 14:07:43,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064206143] [2020-10-24 14:07:43,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:43,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:43,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429006169] [2020-10-24 14:07:43,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:43,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:43,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:43,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:43,610 INFO L87 Difference]: Start difference. First operand 142 states and 141 transitions. Second operand 4 states. [2020-10-24 14:07:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:43,669 INFO L93 Difference]: Finished difference Result 142 states and 141 transitions. [2020-10-24 14:07:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:43,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-24 14:07:43,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:43,671 INFO L225 Difference]: With dead ends: 142 [2020-10-24 14:07:43,671 INFO L226 Difference]: Without dead ends: 139 [2020-10-24 14:07:43,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 14:07:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-24 14:07:43,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-10-24 14:07:43,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-24 14:07:43,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 138 transitions. [2020-10-24 14:07:43,679 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 138 transitions. Word has length 31 [2020-10-24 14:07:43,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:43,681 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 138 transitions. [2020-10-24 14:07:43,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:43,681 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 138 transitions. [2020-10-24 14:07:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-24 14:07:43,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:43,686 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] [2020-10-24 14:07:43,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-24 14:07:43,888 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:43,889 INFO L82 PathProgramCache]: Analyzing trace with hash 427321961, now seen corresponding path program 1 times [2020-10-24 14:07:43,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:43,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909768805] [2020-10-24 14:07:43,890 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 14:07:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:44,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:07:44,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:44,803 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 14:07:44,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:44,850 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 14:07:44,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909768805] [2020-10-24 14:07:44,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:44,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:44,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836867852] [2020-10-24 14:07:44,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:44,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:44,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:44,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:44,853 INFO L87 Difference]: Start difference. First operand 139 states and 138 transitions. Second operand 4 states. [2020-10-24 14:07:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:44,906 INFO L93 Difference]: Finished difference Result 139 states and 138 transitions. [2020-10-24 14:07:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:44,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-24 14:07:44,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:44,908 INFO L225 Difference]: With dead ends: 139 [2020-10-24 14:07:44,908 INFO L226 Difference]: Without dead ends: 136 [2020-10-24 14:07:44,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 14:07:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-24 14:07:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-24 14:07:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-24 14:07:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 135 transitions. [2020-10-24 14:07:44,913 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 135 transitions. Word has length 33 [2020-10-24 14:07:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:44,914 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 135 transitions. [2020-10-24 14:07:44,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 135 transitions. [2020-10-24 14:07:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-24 14:07:44,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:44,915 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] [2020-10-24 14:07:45,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-24 14:07:45,117 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:45,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:45,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1650040329, now seen corresponding path program 1 times [2020-10-24 14:07:45,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:45,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578503686] [2020-10-24 14:07:45,120 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 14:07:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:07:46,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:46,188 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 14:07:46,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:46,236 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 14:07:46,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578503686] [2020-10-24 14:07:46,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:46,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:46,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97798011] [2020-10-24 14:07:46,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:46,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:46,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:46,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:46,238 INFO L87 Difference]: Start difference. First operand 136 states and 135 transitions. Second operand 4 states. [2020-10-24 14:07:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:07:47,155 INFO L93 Difference]: Finished difference Result 136 states and 135 transitions. [2020-10-24 14:07:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:07:47,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-24 14:07:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:07:47,158 INFO L225 Difference]: With dead ends: 136 [2020-10-24 14:07:47,158 INFO L226 Difference]: Without dead ends: 133 [2020-10-24 14:07:47,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 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 14:07:47,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-24 14:07:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-24 14:07:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-24 14:07:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 132 transitions. [2020-10-24 14:07:47,164 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 132 transitions. Word has length 35 [2020-10-24 14:07:47,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:07:47,164 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 132 transitions. [2020-10-24 14:07:47,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:07:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 132 transitions. [2020-10-24 14:07:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-24 14:07:47,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:07:47,165 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] [2020-10-24 14:07:47,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-24 14:07:47,370 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:07:47,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:07:47,371 INFO L82 PathProgramCache]: Analyzing trace with hash -835407867, now seen corresponding path program 1 times [2020-10-24 14:07:47,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:07:47,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616122211] [2020-10-24 14:07:47,373 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 14:07:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:07:48,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:07:48,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:07:48,328 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 14:07:48,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:07:48,391 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 14:07:48,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616122211] [2020-10-24 14:07:48,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:07:48,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:07:48,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271747312] [2020-10-24 14:07:48,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:07:48,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:07:48,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:07:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:07:48,394 INFO L87 Difference]: Start difference. First operand 133 states and 132 transitions. Second operand 4 states. [2020-10-24 14:08:28,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:28,433 INFO L93 Difference]: Finished difference Result 133 states and 132 transitions. [2020-10-24 14:08:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:28,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-24 14:08:28,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:28,435 INFO L225 Difference]: With dead ends: 133 [2020-10-24 14:08:28,435 INFO L226 Difference]: Without dead ends: 130 [2020-10-24 14:08:28,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 14:08:28,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-24 14:08:28,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-24 14:08:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-24 14:08:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 129 transitions. [2020-10-24 14:08:28,439 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 129 transitions. Word has length 37 [2020-10-24 14:08:28,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:28,440 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 129 transitions. [2020-10-24 14:08:28,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 129 transitions. [2020-10-24 14:08:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-24 14:08:28,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:28,441 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] [2020-10-24 14:08:28,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-24 14:08:28,648 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:28,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:28,649 INFO L82 PathProgramCache]: Analyzing trace with hash 342340755, now seen corresponding path program 1 times [2020-10-24 14:08:28,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:28,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575024977] [2020-10-24 14:08:28,651 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 14:08:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:29,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:08:29,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:29,728 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 14:08:29,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:29,785 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 14:08:29,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575024977] [2020-10-24 14:08:29,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:29,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:08:29,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264618749] [2020-10-24 14:08:29,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:08:29,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:29,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:08:29,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:29,787 INFO L87 Difference]: Start difference. First operand 130 states and 129 transitions. Second operand 4 states. [2020-10-24 14:08:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:29,857 INFO L93 Difference]: Finished difference Result 130 states and 129 transitions. [2020-10-24 14:08:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:29,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-24 14:08:29,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:29,859 INFO L225 Difference]: With dead ends: 130 [2020-10-24 14:08:29,859 INFO L226 Difference]: Without dead ends: 127 [2020-10-24 14:08:29,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:29,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-24 14:08:29,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-10-24 14:08:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-24 14:08:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 126 transitions. [2020-10-24 14:08:29,864 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 126 transitions. Word has length 39 [2020-10-24 14:08:29,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:29,864 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 126 transitions. [2020-10-24 14:08:29,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 126 transitions. [2020-10-24 14:08:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-24 14:08:29,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:29,865 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 14:08:30,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-24 14:08:30,075 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:30,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:30,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1712599135, now seen corresponding path program 1 times [2020-10-24 14:08:30,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:30,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30078347] [2020-10-24 14:08:30,078 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 14:08:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:31,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:08:31,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:31,373 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 14:08:31,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:31,429 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 14:08:31,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30078347] [2020-10-24 14:08:31,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:31,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:08:31,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29299346] [2020-10-24 14:08:31,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:08:31,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:31,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:08:31,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:31,432 INFO L87 Difference]: Start difference. First operand 127 states and 126 transitions. Second operand 4 states. [2020-10-24 14:08:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:31,496 INFO L93 Difference]: Finished difference Result 127 states and 126 transitions. [2020-10-24 14:08:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:31,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-24 14:08:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:31,497 INFO L225 Difference]: With dead ends: 127 [2020-10-24 14:08:31,497 INFO L226 Difference]: Without dead ends: 124 [2020-10-24 14:08:31,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-24 14:08:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-24 14:08:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-24 14:08:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 123 transitions. [2020-10-24 14:08:31,501 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 123 transitions. Word has length 41 [2020-10-24 14:08:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:31,502 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 123 transitions. [2020-10-24 14:08:31,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 123 transitions. [2020-10-24 14:08:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-24 14:08:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:31,503 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] [2020-10-24 14:08:31,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-10-24 14:08:31,714 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:31,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:31,715 INFO L82 PathProgramCache]: Analyzing trace with hash -824876753, now seen corresponding path program 1 times [2020-10-24 14:08:31,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:31,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882442197] [2020-10-24 14:08:31,717 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 14:08:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:32,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:08:32,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:32,827 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 14:08:32,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:32,891 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 14:08:32,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882442197] [2020-10-24 14:08:32,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:32,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:08:32,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324643457] [2020-10-24 14:08:32,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:08:32,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:32,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:08:32,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:32,893 INFO L87 Difference]: Start difference. First operand 124 states and 123 transitions. Second operand 4 states. [2020-10-24 14:08:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:32,973 INFO L93 Difference]: Finished difference Result 124 states and 123 transitions. [2020-10-24 14:08:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:32,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-10-24 14:08:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:32,975 INFO L225 Difference]: With dead ends: 124 [2020-10-24 14:08:32,975 INFO L226 Difference]: Without dead ends: 121 [2020-10-24 14:08:32,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-24 14:08:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-10-24 14:08:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-24 14:08:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 120 transitions. [2020-10-24 14:08:32,979 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 120 transitions. Word has length 43 [2020-10-24 14:08:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:32,980 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 120 transitions. [2020-10-24 14:08:32,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 120 transitions. [2020-10-24 14:08:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-24 14:08:32,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:32,981 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 14:08:33,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-10-24 14:08:33,182 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:33,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:33,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1872808253, now seen corresponding path program 1 times [2020-10-24 14:08:33,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:33,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739570200] [2020-10-24 14:08:33,184 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 14:08:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:34,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 14:08:34,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:36,491 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-24 14:08:36,505 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 14:08:36,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:37,582 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 14:08:37,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739570200] [2020-10-24 14:08:37,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:37,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:08:37,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484943906] [2020-10-24 14:08:37,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:08:37,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:37,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:08:37,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:08:37,587 INFO L87 Difference]: Start difference. First operand 121 states and 120 transitions. Second operand 5 states. [2020-10-24 14:08:42,450 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 35 [2020-10-24 14:08:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:47,571 INFO L93 Difference]: Finished difference Result 121 states and 120 transitions. [2020-10-24 14:08:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:08:47,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2020-10-24 14:08:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:47,573 INFO L225 Difference]: With dead ends: 121 [2020-10-24 14:08:47,573 INFO L226 Difference]: Without dead ends: 118 [2020-10-24 14:08:47,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:08:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-24 14:08:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-10-24 14:08:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-24 14:08:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 117 transitions. [2020-10-24 14:08:47,577 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 117 transitions. Word has length 45 [2020-10-24 14:08:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:47,578 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 117 transitions. [2020-10-24 14:08:47,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:08:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 117 transitions. [2020-10-24 14:08:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-24 14:08:47,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:47,579 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] [2020-10-24 14:08:47,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-24 14:08:47,787 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:47,789 INFO L82 PathProgramCache]: Analyzing trace with hash 187852747, now seen corresponding path program 1 times [2020-10-24 14:08:47,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:47,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317586929] [2020-10-24 14:08:47,790 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 14:08:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:50,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:08:50,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:51,782 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-24 14:08:51,801 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 14:08:51,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:52,180 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 14:08:52,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317586929] [2020-10-24 14:08:52,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:52,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:08:52,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443433861] [2020-10-24 14:08:52,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:08:52,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:52,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:08:52,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:52,182 INFO L87 Difference]: Start difference. First operand 118 states and 117 transitions. Second operand 4 states. [2020-10-24 14:08:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:53,773 INFO L93 Difference]: Finished difference Result 118 states and 117 transitions. [2020-10-24 14:08:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:53,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-24 14:08:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:53,808 INFO L225 Difference]: With dead ends: 118 [2020-10-24 14:08:53,808 INFO L226 Difference]: Without dead ends: 115 [2020-10-24 14:08:53,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-24 14:08:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-24 14:08:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-24 14:08:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 114 transitions. [2020-10-24 14:08:53,811 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 114 transitions. Word has length 47 [2020-10-24 14:08:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:53,811 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 114 transitions. [2020-10-24 14:08:53,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 114 transitions. [2020-10-24 14:08:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-24 14:08:53,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:53,812 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] [2020-10-24 14:08:54,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-24 14:08:54,014 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:54,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:54,014 INFO L82 PathProgramCache]: Analyzing trace with hash 148282585, now seen corresponding path program 1 times [2020-10-24 14:08:54,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:54,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476707159] [2020-10-24 14:08:54,015 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 14:08:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:56,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:08:56,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:08:56,788 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 14:08:56,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:08:56,858 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 14:08:56,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476707159] [2020-10-24 14:08:56,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:08:56,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:08:56,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961359438] [2020-10-24 14:08:56,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:08:56,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:08:56,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:08:56,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:56,861 INFO L87 Difference]: Start difference. First operand 115 states and 114 transitions. Second operand 4 states. [2020-10-24 14:08:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:08:56,932 INFO L93 Difference]: Finished difference Result 115 states and 114 transitions. [2020-10-24 14:08:56,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:08:56,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-10-24 14:08:56,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:08:56,934 INFO L225 Difference]: With dead ends: 115 [2020-10-24 14:08:56,934 INFO L226 Difference]: Without dead ends: 112 [2020-10-24 14:08:56,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:08:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-24 14:08:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-24 14:08:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-24 14:08:56,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 111 transitions. [2020-10-24 14:08:56,938 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 111 transitions. Word has length 49 [2020-10-24 14:08:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:08:56,939 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 111 transitions. [2020-10-24 14:08:56,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:08:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 111 transitions. [2020-10-24 14:08:56,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-24 14:08:56,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:08:56,940 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 14:08:57,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2020-10-24 14:08:57,142 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:08:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:08:57,143 INFO L82 PathProgramCache]: Analyzing trace with hash 776063079, now seen corresponding path program 1 times [2020-10-24 14:08:57,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:08:57,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800623392] [2020-10-24 14:08:57,144 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 14:08:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:08:59,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:08:59,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:09:00,047 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 14:09:00,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:09:00,138 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 14:09:00,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800623392] [2020-10-24 14:09:00,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:09:00,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:09:00,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966030489] [2020-10-24 14:09:00,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:09:00,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:09:00,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:09:00,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:09:00,141 INFO L87 Difference]: Start difference. First operand 112 states and 111 transitions. Second operand 5 states. [2020-10-24 14:09:21,246 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-10-24 14:09:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:09:41,937 INFO L93 Difference]: Finished difference Result 112 states and 111 transitions. [2020-10-24 14:09:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:09:41,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-24 14:09:41,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:09:41,978 INFO L225 Difference]: With dead ends: 112 [2020-10-24 14:09:41,978 INFO L226 Difference]: Without dead ends: 109 [2020-10-24 14:09:41,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:09:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-24 14:09:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-24 14:09:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-24 14:09:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 108 transitions. [2020-10-24 14:09:41,982 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 108 transitions. Word has length 51 [2020-10-24 14:09:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:09:41,982 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 108 transitions. [2020-10-24 14:09:41,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:09:41,982 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 108 transitions. [2020-10-24 14:09:41,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-24 14:09:41,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:09:41,983 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] [2020-10-24 14:09:42,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2020-10-24 14:09:42,184 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:09:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:09:42,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1517270411, now seen corresponding path program 1 times [2020-10-24 14:09:42,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:09:42,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167947424] [2020-10-24 14:09:42,187 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 14:09:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:09:45,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:09:45,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:09:45,569 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 14:09:45,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:09:45,640 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 14:09:45,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167947424] [2020-10-24 14:09:45,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:09:45,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:09:45,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730853708] [2020-10-24 14:09:45,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:09:45,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:09:45,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:09:45,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:09:45,642 INFO L87 Difference]: Start difference. First operand 109 states and 108 transitions. Second operand 4 states. [2020-10-24 14:09:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:09:45,695 INFO L93 Difference]: Finished difference Result 109 states and 108 transitions. [2020-10-24 14:09:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:09:45,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-24 14:09:45,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:09:45,699 INFO L225 Difference]: With dead ends: 109 [2020-10-24 14:09:45,700 INFO L226 Difference]: Without dead ends: 106 [2020-10-24 14:09:45,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 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 14:09:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-24 14:09:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-24 14:09:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-24 14:09:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 105 transitions. [2020-10-24 14:09:45,705 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 105 transitions. Word has length 53 [2020-10-24 14:09:45,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:09:45,705 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 105 transitions. [2020-10-24 14:09:45,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:09:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 105 transitions. [2020-10-24 14:09:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-24 14:09:45,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:09:45,706 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] [2020-10-24 14:09:45,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2020-10-24 14:09:45,908 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:09:45,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:09:45,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2092530941, now seen corresponding path program 1 times [2020-10-24 14:09:45,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:09:45,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139947760] [2020-10-24 14:09:45,910 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 14:09:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:09:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:09:49,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:09:49,402 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 14:09:49,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:09:49,469 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 14:09:49,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139947760] [2020-10-24 14:09:49,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:09:49,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:09:49,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663798564] [2020-10-24 14:09:49,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:09:49,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:09:49,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:09:49,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:09:49,471 INFO L87 Difference]: Start difference. First operand 106 states and 105 transitions. Second operand 5 states. [2020-10-24 14:10:25,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:10:25,539 INFO L93 Difference]: Finished difference Result 106 states and 105 transitions. [2020-10-24 14:10:25,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:10:25,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-24 14:10:25,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:10:25,541 INFO L225 Difference]: With dead ends: 106 [2020-10-24 14:10:25,541 INFO L226 Difference]: Without dead ends: 103 [2020-10-24 14:10:25,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:10:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-24 14:10:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-24 14:10:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-24 14:10:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 102 transitions. [2020-10-24 14:10:25,546 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 102 transitions. Word has length 55 [2020-10-24 14:10:25,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:10:25,546 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 102 transitions. [2020-10-24 14:10:25,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:10:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 102 transitions. [2020-10-24 14:10:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-24 14:10:25,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:10:25,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:10:25,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2020-10-24 14:10:25,757 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:10:25,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:10:25,758 INFO L82 PathProgramCache]: Analyzing trace with hash -867118575, now seen corresponding path program 1 times [2020-10-24 14:10:25,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:10:25,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233613772] [2020-10-24 14:10:25,760 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 14:10:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:10:29,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:10:29,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:10:29,329 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 14:10:29,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:10:29,411 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 14:10:29,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233613772] [2020-10-24 14:10:29,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:10:29,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:10:29,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959380120] [2020-10-24 14:10:29,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:10:29,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:10:29,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:10:29,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:10:29,413 INFO L87 Difference]: Start difference. First operand 103 states and 102 transitions. Second operand 5 states. [2020-10-24 14:11:13,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:11:13,495 INFO L93 Difference]: Finished difference Result 103 states and 102 transitions. [2020-10-24 14:11:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:11:13,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-10-24 14:11:13,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:11:13,497 INFO L225 Difference]: With dead ends: 103 [2020-10-24 14:11:13,497 INFO L226 Difference]: Without dead ends: 100 [2020-10-24 14:11:13,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:11:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-24 14:11:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-10-24 14:11:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-24 14:11:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 99 transitions. [2020-10-24 14:11:13,502 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 99 transitions. Word has length 57 [2020-10-24 14:11:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:11:13,503 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 99 transitions. [2020-10-24 14:11:13,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:11:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 99 transitions. [2020-10-24 14:11:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-24 14:11:13,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:11:13,504 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] [2020-10-24 14:11:13,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 mathsat -unsat_core_generation=3 [2020-10-24 14:11:13,713 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:11:13,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:11:13,714 INFO L82 PathProgramCache]: Analyzing trace with hash -66873441, now seen corresponding path program 1 times [2020-10-24 14:11:13,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:11:13,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063747766] [2020-10-24 14:11:13,717 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 14:11:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:11:17,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:11:17,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:11:17,363 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 14:11:17,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:11:17,443 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 14:11:17,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063747766] [2020-10-24 14:11:17,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:11:17,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:11:17,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185498817] [2020-10-24 14:11:17,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:11:17,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:11:17,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:11:17,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:11:17,447 INFO L87 Difference]: Start difference. First operand 100 states and 99 transitions. Second operand 4 states. [2020-10-24 14:11:19,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:11:19,487 INFO L93 Difference]: Finished difference Result 100 states and 99 transitions. [2020-10-24 14:11:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:11:19,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-10-24 14:11:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:11:19,546 INFO L225 Difference]: With dead ends: 100 [2020-10-24 14:11:19,546 INFO L226 Difference]: Without dead ends: 97 [2020-10-24 14:11:19,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 114 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 14:11:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-24 14:11:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-24 14:11:19,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-24 14:11:19,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 96 transitions. [2020-10-24 14:11:19,548 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 96 transitions. Word has length 59 [2020-10-24 14:11:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:11:19,549 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 96 transitions. [2020-10-24 14:11:19,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:11:19,549 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 96 transitions. [2020-10-24 14:11:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-24 14:11:19,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:11:19,550 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] [2020-10-24 14:11:19,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 mathsat -unsat_core_generation=3 [2020-10-24 14:11:19,751 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:11:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:11:19,752 INFO L82 PathProgramCache]: Analyzing trace with hash 169554861, now seen corresponding path program 1 times [2020-10-24 14:11:19,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:11:19,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211429025] [2020-10-24 14:11:19,754 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 14:11:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:11:26,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:11:26,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:11:28,561 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_#t~nondet269| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet270| (_ BitVec 64)) (~CRM RoundingMode)) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet270|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet270|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet270|))) (.cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet269|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet269|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet269|)))) (and (= (fp.neg (_ +oo 11 53)) .cse0) (= (fp.div ~CRM .cse1 .cse0) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet271|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet271|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet271|))) (= ((_ to_fp 11 53) ~CRM 1.0) .cse1)))) is different from false [2020-10-24 14:11:28,580 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 14:11:28,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:11:28,631 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 14:11:28,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211429025] [2020-10-24 14:11:28,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:11:28,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:11:28,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444472636] [2020-10-24 14:11:28,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:11:28,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:11:28,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:11:28,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2020-10-24 14:11:28,633 INFO L87 Difference]: Start difference. First operand 97 states and 96 transitions. Second operand 4 states. [2020-10-24 14:11:30,881 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_#t~nondet269| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet270| (_ BitVec 64)) (~CRM RoundingMode)) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet270|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet270|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet270|))) (.cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet269|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet269|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet269|)))) (and (= (fp.neg (_ +oo 11 53)) .cse0) (= (fp.div ~CRM .cse1 .cse0) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet271|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet271|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet271|))) (= ((_ to_fp 11 53) ~CRM 1.0) .cse1)))) (= (_ bv1 1) ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet271|))) is different from false [2020-10-24 14:11:30,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:11:30,892 INFO L93 Difference]: Finished difference Result 97 states and 96 transitions. [2020-10-24 14:11:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:11:30,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-24 14:11:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:11:30,893 INFO L225 Difference]: With dead ends: 97 [2020-10-24 14:11:30,893 INFO L226 Difference]: Without dead ends: 94 [2020-10-24 14:11:30,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=2, NotChecked=6, Total=20 [2020-10-24 14:11:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-24 14:11:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-10-24 14:11:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-24 14:11:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 93 transitions. [2020-10-24 14:11:30,896 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 93 transitions. Word has length 61 [2020-10-24 14:11:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:11:30,896 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 93 transitions. [2020-10-24 14:11:30,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:11:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 93 transitions. [2020-10-24 14:11:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-24 14:11:30,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:11:30,897 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 14:11:31,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 mathsat -unsat_core_generation=3 [2020-10-24 14:11:31,099 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:11:31,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:11:31,099 INFO L82 PathProgramCache]: Analyzing trace with hash -256113093, now seen corresponding path program 1 times [2020-10-24 14:11:31,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:11:31,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746470535] [2020-10-24 14:11:31,101 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 29 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with mathsat -unsat_core_generation=3 [2020-10-24 14:11:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:11:37,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:11:37,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:11:37,634 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 14:11:37,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:11:37,700 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 14:11:37,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746470535] [2020-10-24 14:11:37,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:11:37,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:11:37,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129577402] [2020-10-24 14:11:37,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:11:37,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:11:37,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:11:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:11:37,701 INFO L87 Difference]: Start difference. First operand 94 states and 93 transitions. Second operand 4 states. [2020-10-24 14:11:38,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:11:38,673 INFO L93 Difference]: Finished difference Result 94 states and 93 transitions. [2020-10-24 14:11:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:11:38,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-24 14:11:38,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:11:38,676 INFO L225 Difference]: With dead ends: 94 [2020-10-24 14:11:38,676 INFO L226 Difference]: Without dead ends: 91 [2020-10-24 14:11:38,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 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 14:11:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-24 14:11:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-24 14:11:38,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-24 14:11:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 90 transitions. [2020-10-24 14:11:38,679 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 90 transitions. Word has length 63 [2020-10-24 14:11:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:11:38,679 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 90 transitions. [2020-10-24 14:11:38,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:11:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 90 transitions. [2020-10-24 14:11:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-24 14:11:38,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:11:38,680 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] [2020-10-24 14:11:38,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 mathsat -unsat_core_generation=3 [2020-10-24 14:11:38,889 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:11:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:11:38,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1301123255, now seen corresponding path program 1 times [2020-10-24 14:11:38,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:11:38,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833658608] [2020-10-24 14:11:38,891 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 30 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with mathsat -unsat_core_generation=3 [2020-10-24 14:11:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:11:47,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:11:47,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:11:50,151 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_#t~nondet286| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet287| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet287|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet287|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet287|))) (.cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet286|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet286|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet286|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet288|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet288|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet288|))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)))) is different from false [2020-10-24 14:11:50,169 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 14:11:50,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:11:51,285 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 14:11:51,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833658608] [2020-10-24 14:11:51,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:11:51,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:11:51,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529938179] [2020-10-24 14:11:51,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:11:51,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:11:51,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:11:51,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-10-24 14:11:51,287 INFO L87 Difference]: Start difference. First operand 91 states and 90 transitions. Second operand 5 states. [2020-10-24 14:12:11,309 WARN L193 SmtUtils]: Spent 17.17 s on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-10-24 14:12:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:12:13,460 INFO L93 Difference]: Finished difference Result 91 states and 90 transitions. [2020-10-24 14:12:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:12:13,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-24 14:12:13,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:12:13,462 INFO L225 Difference]: With dead ends: 91 [2020-10-24 14:12:13,462 INFO L226 Difference]: Without dead ends: 88 [2020-10-24 14:12:13,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2020-10-24 14:12:13,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-24 14:12:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-10-24 14:12:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-24 14:12:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 87 transitions. [2020-10-24 14:12:13,465 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 87 transitions. Word has length 65 [2020-10-24 14:12:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:12:13,465 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 87 transitions. [2020-10-24 14:12:13,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:12:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 87 transitions. [2020-10-24 14:12:13,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-24 14:12:13,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:12:13,466 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, 1] [2020-10-24 14:12:13,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 mathsat -unsat_core_generation=3 [2020-10-24 14:12:13,675 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:12:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:12:13,676 INFO L82 PathProgramCache]: Analyzing trace with hash -533541161, now seen corresponding path program 1 times [2020-10-24 14:12:13,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:12:13,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903429377] [2020-10-24 14:12:13,681 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 31 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with mathsat -unsat_core_generation=3 [2020-10-24 14:12:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:12:22,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:12:22,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:12:22,655 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 14:12:22,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:12:22,734 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 14:12:22,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903429377] [2020-10-24 14:12:22,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:12:22,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:12:22,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133415334] [2020-10-24 14:12:22,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:12:22,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:12:22,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:12:22,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:12:22,737 INFO L87 Difference]: Start difference. First operand 88 states and 87 transitions. Second operand 4 states. [2020-10-24 14:12:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:12:22,793 INFO L93 Difference]: Finished difference Result 88 states and 87 transitions. [2020-10-24 14:12:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:12:22,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-24 14:12:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:12:22,795 INFO L225 Difference]: With dead ends: 88 [2020-10-24 14:12:22,795 INFO L226 Difference]: Without dead ends: 85 [2020-10-24 14:12:22,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:12:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-24 14:12:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-24 14:12:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-24 14:12:22,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 84 transitions. [2020-10-24 14:12:22,798 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 84 transitions. Word has length 67 [2020-10-24 14:12:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:12:22,798 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 84 transitions. [2020-10-24 14:12:22,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:12:22,799 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 84 transitions. [2020-10-24 14:12:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-24 14:12:22,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:12:22,799 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, 1, 1, 1] [2020-10-24 14:12:23,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 mathsat -unsat_core_generation=3 [2020-10-24 14:12:23,008 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:12:23,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:12:23,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1621523227, now seen corresponding path program 1 times [2020-10-24 14:12:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:12:23,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688388511] [2020-10-24 14:12:23,011 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 32 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with mathsat -unsat_core_generation=3 [2020-10-24 14:12:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:12:35,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:12:35,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:12:37,755 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_#t~nondet307| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet306| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet306|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet306|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet306|))) (.cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet307|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet307|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet307|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet308|))) (= .cse0 (_ +zero 11 53)) (= (_ +zero 11 53) .cse1)))) is different from false [2020-10-24 14:12:37,781 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 14:12:37,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:12:39,021 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 14:12:39,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688388511] [2020-10-24 14:12:39,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:12:39,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:12:39,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040806771] [2020-10-24 14:12:39,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:12:39,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:12:39,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:12:39,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-10-24 14:12:39,023 INFO L87 Difference]: Start difference. First operand 85 states and 84 transitions. Second operand 5 states. [2020-10-24 14:12:42,034 WARN L838 $PredicateComparison]: unable to prove that (and (fp.isNaN (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet308|))) (exists ((|ULTIMATE.start_main_#t~nondet307| (_ BitVec 64)) (|ULTIMATE.start_main_#t~nondet306| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet306|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet306|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet306|))) (.cse1 (fp ((_ extract 63 63) |ULTIMATE.start_main_#t~nondet307|) ((_ extract 62 52) |ULTIMATE.start_main_#t~nondet307|) ((_ extract 51 0) |ULTIMATE.start_main_#t~nondet307|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 62 52) |c_ULTIMATE.start_main_#t~nondet308|) ((_ extract 51 0) |c_ULTIMATE.start_main_#t~nondet308|))) (= .cse0 (_ +zero 11 53)) (= (_ +zero 11 53) .cse1)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:12:42,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:12:42,101 INFO L93 Difference]: Finished difference Result 85 states and 84 transitions. [2020-10-24 14:12:42,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:12:42,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-10-24 14:12:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:12:42,103 INFO L225 Difference]: With dead ends: 85 [2020-10-24 14:12:42,103 INFO L226 Difference]: Without dead ends: 82 [2020-10-24 14:12:42,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-10-24 14:12:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-24 14:12:42,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-24 14:12:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-24 14:12:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 81 transitions. [2020-10-24 14:12:42,106 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 81 transitions. Word has length 69 [2020-10-24 14:12:42,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:12:42,106 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 81 transitions. [2020-10-24 14:12:42,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:12:42,106 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 81 transitions. [2020-10-24 14:12:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-24 14:12:42,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:12:42,106 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, 1, 1, 1, 1, 1] [MP mathsat -unsat_core_generation=3 (32)] Forcibly destroying the process [2020-10-24 14:12:42,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 mathsat -unsat_core_generation=3 [2020-10-24 14:12:42,308 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:12:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:12:42,308 INFO L82 PathProgramCache]: Analyzing trace with hash 799732083, now seen corresponding path program 1 times [2020-10-24 14:12:42,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:12:42,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344358162] [2020-10-24 14:12:42,310 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 33 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with mathsat -unsat_core_generation=3 [2020-10-24 14:12:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:12:55,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:12:55,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:12:55,566 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 14:12:55,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:12:55,648 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 14:12:55,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344358162] [2020-10-24 14:12:55,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:12:55,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:12:55,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538713349] [2020-10-24 14:12:55,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:12:55,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:12:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:12:55,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:12:55,651 INFO L87 Difference]: Start difference. First operand 82 states and 81 transitions. Second operand 4 states. [2020-10-24 14:12:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:12:55,730 INFO L93 Difference]: Finished difference Result 82 states and 81 transitions. [2020-10-24 14:12:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:12:55,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-10-24 14:12:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:12:55,732 INFO L225 Difference]: With dead ends: 82 [2020-10-24 14:12:55,732 INFO L226 Difference]: Without dead ends: 79 [2020-10-24 14:12:55,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:12:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-24 14:12:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-24 14:12:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-24 14:12:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 78 transitions. [2020-10-24 14:12:55,734 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 78 transitions. Word has length 71 [2020-10-24 14:12:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:12:55,735 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 78 transitions. [2020-10-24 14:12:55,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:12:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 78 transitions. [2020-10-24 14:12:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-24 14:12:55,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:12:55,736 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:12:55,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 mathsat -unsat_core_generation=3 [2020-10-24 14:12:55,940 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:12:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:12:55,941 INFO L82 PathProgramCache]: Analyzing trace with hash -246188927, now seen corresponding path program 1 times [2020-10-24 14:12:55,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:12:55,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319441527] [2020-10-24 14:12:55,943 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 34 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with mathsat -unsat_core_generation=3 [2020-10-24 14:13:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:13:09,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 14:13:09,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:13:09,283 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 14:13:09,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:13:09,354 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 14:13:09,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319441527] [2020-10-24 14:13:09,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:13:09,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:13:09,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027848641] [2020-10-24 14:13:09,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:13:09,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:13:09,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:13:09,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:13:09,356 INFO L87 Difference]: Start difference. First operand 79 states and 78 transitions. Second operand 4 states. [2020-10-24 14:13:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:13:09,439 INFO L93 Difference]: Finished difference Result 79 states and 78 transitions. [2020-10-24 14:13:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:13:09,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-10-24 14:13:09,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:13:09,440 INFO L225 Difference]: With dead ends: 79 [2020-10-24 14:13:09,440 INFO L226 Difference]: Without dead ends: 76 [2020-10-24 14:13:09,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:13:09,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-24 14:13:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-24 14:13:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 14:13:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 75 transitions. [2020-10-24 14:13:09,443 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 75 transitions. Word has length 73 [2020-10-24 14:13:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:13:09,443 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 75 transitions. [2020-10-24 14:13:09,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:13:09,443 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 75 transitions. [2020-10-24 14:13:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-24 14:13:09,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:13:09,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:13:09,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 mathsat -unsat_core_generation=3 [2020-10-24 14:13:09,645 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_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.startErr37ASSERT_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 14:13:09,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:13:09,646 INFO L82 PathProgramCache]: Analyzing trace with hash -353931761, now seen corresponding path program 1 times [2020-10-24 14:13:09,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:13:09,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984663462] [2020-10-24 14:13:09,648 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 35 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with mathsat -unsat_core_generation=3 [2020-10-24 14:13:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:13:23,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 14:13:23,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:13:23,659 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 14:13:23,675 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 14:13:23,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:13:24,409 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 14:13:24,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984663462] [2020-10-24 14:13:24,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:13:24,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 14:13:24,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803170528] [2020-10-24 14:13:24,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 14:13:24,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:13:24,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 14:13:24,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:13:24,412 INFO L87 Difference]: Start difference. First operand 76 states and 75 transitions. Second operand 4 states. [2020-10-24 14:13:24,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:13:24,442 INFO L93 Difference]: Finished difference Result 76 states and 75 transitions. [2020-10-24 14:13:24,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:13:24,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-10-24 14:13:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:13:24,443 INFO L225 Difference]: With dead ends: 76 [2020-10-24 14:13:24,443 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:13:24,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 14:13:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:13:24,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:13:24,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:13:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:13:24,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2020-10-24 14:13:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:13:24,444 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:13:24,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 14:13:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:13:24,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [MP mathsat -unsat_core_generation=3 (35)] Forcibly destroying the process [2020-10-24 14:13:24,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 mathsat -unsat_core_generation=3 [2020-10-24 14:13:24,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:13:24,659 INFO L274 CegarLoopResult]: For program point L993(line 993) no Hoare annotation was computed. [2020-10-24 14:13:24,659 INFO L274 CegarLoopResult]: For program point L993-2(line 993) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point L994(line 994) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point L994-2(line 994) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,660 INFO L274 CegarLoopResult]: For program point L995(line 995) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point L995-2(line 995) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point L996(line 996) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point L963(lines 963 1022) no Hoare annotation was computed. [2020-10-24 14:13:24,661 INFO L274 CegarLoopResult]: For program point L996-2(line 996) no Hoare annotation was computed. [2020-10-24 14:13:24,662 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,662 INFO L274 CegarLoopResult]: For program point L997(line 997) no Hoare annotation was computed. [2020-10-24 14:13:24,662 INFO L274 CegarLoopResult]: For program point L997-2(line 997) no Hoare annotation was computed. [2020-10-24 14:13:24,662 INFO L274 CegarLoopResult]: For program point L998(line 998) no Hoare annotation was computed. [2020-10-24 14:13:24,662 INFO L274 CegarLoopResult]: For program point L998-2(line 998) no Hoare annotation was computed. [2020-10-24 14:13:24,663 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,663 INFO L274 CegarLoopResult]: For program point L999(line 999) no Hoare annotation was computed. [2020-10-24 14:13:24,663 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point L999-2(line 999) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point L1000(line 1000) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point L1000-2(line 1000) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,664 INFO L274 CegarLoopResult]: For program point L1001(line 1001) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point L1001-2(line 1001) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,665 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,666 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,666 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,666 INFO L274 CegarLoopResult]: For program point L12-7(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,666 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,668 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,668 INFO L274 CegarLoopResult]: For program point L12-11(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,668 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,669 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,669 INFO L274 CegarLoopResult]: For program point L12-15(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,669 INFO L274 CegarLoopResult]: For program point L12-16(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,670 INFO L274 CegarLoopResult]: For program point L12-18(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,670 INFO L274 CegarLoopResult]: For program point L12-19(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,672 INFO L274 CegarLoopResult]: For program point L12-20(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,672 INFO L274 CegarLoopResult]: For program point L12-22(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-23(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-24(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-26(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-27(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-28(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,673 INFO L274 CegarLoopResult]: For program point L12-30(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,674 INFO L274 CegarLoopResult]: For program point L12-31(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,675 INFO L274 CegarLoopResult]: For program point L12-32(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,677 INFO L274 CegarLoopResult]: For program point L1004(line 1004) no Hoare annotation was computed. [2020-10-24 14:13:24,679 INFO L274 CegarLoopResult]: For program point L971(line 971) no Hoare annotation was computed. [2020-10-24 14:13:24,679 INFO L274 CegarLoopResult]: For program point L12-34(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,679 INFO L274 CegarLoopResult]: For program point L1004-2(line 1004) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L971-2(lines 964 1022) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L12-35(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L12-36(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L12-38(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L12-39(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,680 INFO L274 CegarLoopResult]: For program point L12-40(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-42(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-43(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-44(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-46(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-47(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,681 INFO L274 CegarLoopResult]: For program point L12-48(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,684 INFO L274 CegarLoopResult]: For program point L12-50(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,684 INFO L274 CegarLoopResult]: For program point L12-51(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,684 INFO L274 CegarLoopResult]: For program point L12-52(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-54(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-55(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-56(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-58(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-59(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-60(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,685 INFO L274 CegarLoopResult]: For program point L12-62(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L12-63(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L1005(line 1005) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L12-64(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L972-1(lines 964 1022) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L1005-2(line 1005) no Hoare annotation was computed. [2020-10-24 14:13:24,686 INFO L274 CegarLoopResult]: For program point L12-66(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-67(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-68(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-70(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-71(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-72(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,687 INFO L274 CegarLoopResult]: For program point L12-74(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,689 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,689 INFO L274 CegarLoopResult]: For program point L12-75(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,691 INFO L274 CegarLoopResult]: For program point L12-76(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,691 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,691 INFO L274 CegarLoopResult]: For program point L12-78(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,692 INFO L274 CegarLoopResult]: For program point L12-79(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,692 INFO L274 CegarLoopResult]: For program point L12-80(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,692 INFO L274 CegarLoopResult]: For program point L12-82(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,692 INFO L274 CegarLoopResult]: For program point L12-83(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,692 INFO L274 CegarLoopResult]: For program point L12-84(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,693 INFO L274 CegarLoopResult]: For program point L12-86(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point L12-87(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point L12-88(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point L12-90(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point L12-91(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point L12-92(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L12-94(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L12-95(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L973-1(lines 964 1022) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L12-96(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L12-98(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,695 INFO L274 CegarLoopResult]: For program point L12-99(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,696 INFO L274 CegarLoopResult]: For program point L12-100(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,696 INFO L274 CegarLoopResult]: For program point L12-102(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,696 INFO L274 CegarLoopResult]: For program point L12-103(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,697 INFO L274 CegarLoopResult]: For program point L12-104(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,697 INFO L274 CegarLoopResult]: For program point L12-106(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,697 INFO L274 CegarLoopResult]: For program point L12-107(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,697 INFO L274 CegarLoopResult]: For program point L12-108(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-110(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-111(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-112(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-114(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-115(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-116(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,698 INFO L274 CegarLoopResult]: For program point L12-118(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-119(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-120(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-122(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-123(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-124(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,699 INFO L274 CegarLoopResult]: For program point L12-126(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-127(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-128(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-130(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-131(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-132(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-134(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,700 INFO L274 CegarLoopResult]: For program point L12-135(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point L12-136(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point L12-138(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point L12-139(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point L12-140(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,701 INFO L274 CegarLoopResult]: For program point L12-142(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-143(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-144(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-146(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-147(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-148(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-150(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,702 INFO L274 CegarLoopResult]: For program point L12-151(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point L1008(line 1008) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point L975-1(lines 964 1022) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point L1008-2(line 1008) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point L1009(line 1009) no Hoare annotation was computed. [2020-10-24 14:13:24,703 INFO L274 CegarLoopResult]: For program point L976-1(line 976) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point L1009-2(line 1009) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point L1010(line 1010) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point L1010-2(line 1010) no Hoare annotation was computed. [2020-10-24 14:13:24,704 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L1011(line 1011) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L1011-2(line 1011) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L1012(line 1012) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L979(line 979) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L1012-2(line 1012) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point L979-2(line 979) no Hoare annotation was computed. [2020-10-24 14:13:24,705 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point L1013(line 1013) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point L980(line 980) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point L1013-2(line 1013) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point L980-2(line 980) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,706 INFO L274 CegarLoopResult]: For program point L1014(line 1014) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L981(line 981) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L1014-2(line 1014) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L981-2(line 981) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L1015(line 1015) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L982(line 982) no Hoare annotation was computed. [2020-10-24 14:13:24,707 INFO L274 CegarLoopResult]: For program point L1015-2(line 1015) no Hoare annotation was computed. [2020-10-24 14:13:24,708 INFO L274 CegarLoopResult]: For program point L982-2(line 982) no Hoare annotation was computed. [2020-10-24 14:13:24,708 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,708 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:13:24,708 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,708 INFO L274 CegarLoopResult]: For program point L1016(line 1016) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point L983(line 983) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point L1016-2(line 1016) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point L983-2(line 983) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,709 INFO L274 CegarLoopResult]: For program point L1017(line 1017) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point L1017-2(line 1017) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point L1018(line 1018) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point L1018-2(line 1018) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,710 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point L1019(line 1019) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point L986(line 986) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point L986-2(line 986) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,711 INFO L274 CegarLoopResult]: For program point L987(line 987) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point L987-2(line 987) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point L988(line 988) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point L988-2(line 988) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point L989-2(line 989) no Hoare annotation was computed. [2020-10-24 14:13:24,712 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point L990(line 990) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point L990-2(line 990) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,713 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:13:24,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:13:24 BoogieIcfgContainer [2020-10-24 14:13:24,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:13:24,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:13:24,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:13:24,725 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:13:24,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:06:50" (3/4) ... [2020-10-24 14:13:24,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:13:24,757 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 14:13:24,759 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:13:24,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:13:24,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:13:24,913 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:13:24,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:13:24,915 INFO L168 Benchmark]: Toolchain (without parser) took 397625.19 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 40.1 MB in the beginning and 55.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,916 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:13:24,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1338.03 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 39.5 MB in the beginning and 40.5 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.96 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 35.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,918 INFO L168 Benchmark]: Boogie Preprocessor took 67.53 ms. Allocated memory is still 69.2 MB. Free memory was 35.3 MB in the beginning and 32.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,918 INFO L168 Benchmark]: RCFGBuilder took 1201.85 ms. Allocated memory is still 69.2 MB. Free memory was 32.1 MB in the beginning and 25.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,919 INFO L168 Benchmark]: TraceAbstraction took 394666.19 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 24.8 MB in the beginning and 30.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,919 INFO L168 Benchmark]: Witness Printer took 188.88 ms. Allocated memory is still 86.0 MB. Free memory was 30.5 MB in the beginning and 55.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:24,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1338.03 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 39.5 MB in the beginning and 40.5 MB in the end (delta: -1.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 148.96 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 35.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.53 ms. Allocated memory is still 69.2 MB. Free memory was 35.3 MB in the beginning and 32.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1201.85 ms. Allocated memory is still 69.2 MB. Free memory was 32.1 MB in the beginning and 25.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 394666.19 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 24.8 MB in the beginning and 30.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Witness Printer took 188.88 ms. Allocated memory is still 86.0 MB. Free memory was 30.5 MB in the beginning and 55.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 38 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 394.5s, OverallIterations: 34, TraceHistogramMax: 1, AutomataDifference: 249.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3803 SDtfs, 600 SDslu, 5430 SDs, 0 SdLazy, 1170 SolverSat, 7 SolverUnsat, 99 SolverUnknown, 0 SolverNotchecked, 217.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2798 GetRequests, 2698 SyntacticMatches, 18 SemanticMatches, 82 ConstructedPredicates, 5 IntricatePredicates, 13 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 43.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred 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, 34 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: 0.8s SsaConstructionTime, 106.1s SatisfiabilityAnalysisTime, 29.3s InterpolantComputationTime, 1424 NumberOfCodeBlocks, 1424 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2780 ConstructedInterpolants, 31 QuantifiedInterpolants, 224824 SizeOfPredicates, 93 NumberOfNonLiveVariables, 3703 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...