./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:45:03,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:45:03,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:45:03,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:45:03,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:45:03,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:45:03,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:45:03,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:45:03,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:45:03,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:45:03,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:45:03,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:45:03,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:45:03,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:45:03,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:45:03,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:45:03,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:45:03,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:45:03,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:45:03,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:45:03,754 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:45:03,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:45:03,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:45:03,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:45:03,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:45:03,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:45:03,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:45:03,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:45:03,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:45:03,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:45:03,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:45:03,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:45:03,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:45:03,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:45:03,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:45:03,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:45:03,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:45:03,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:45:03,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:45:03,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:45:03,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:45:03,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:45:03,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:45:03,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:45:03,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:45:03,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:45:03,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:45:03,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:45:03,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:45:03,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:45:03,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:45:03,808 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:45:03,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:45:03,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:45:03,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:45:03,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:45:03,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:45:03,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:45:03,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:45:03,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:45:03,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:45:03,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:45:03,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-19 22:45:04,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:45:04,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:45:04,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:45:04,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:45:04,040 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:45:04,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-19 22:45:04,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ed88ece/949caa00790f4589b342030200f79af7/FLAGc3a99776f [2022-07-19 22:45:04,774 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:45:04,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-19 22:45:04,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ed88ece/949caa00790f4589b342030200f79af7/FLAGc3a99776f [2022-07-19 22:45:04,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ed88ece/949caa00790f4589b342030200f79af7 [2022-07-19 22:45:04,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:45:04,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:45:04,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:45:04,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:45:04,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:45:04,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:04" (1/1) ... [2022-07-19 22:45:04,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e49b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:04, skipping insertion in model container [2022-07-19 22:45:04,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:04" (1/1) ... [2022-07-19 22:45:04,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:45:05,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:45:06,548 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-19 22:45:06,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:06,724 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:45:06,896 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-19 22:45:06,904 INFO L158 Benchmark]: Toolchain (without parser) took 2027.27ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 82.3MB in the beginning and 43.7MB in the end (delta: 38.6MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2022-07-19 22:45:06,904 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:45:06,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2024.26ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 82.3MB in the beginning and 43.7MB in the end (delta: 38.6MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2022-07-19 22:45:06,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 75.5MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2024.26ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 82.3MB in the beginning and 43.7MB in the end (delta: 38.6MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:45:08,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:45:08,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:45:08,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:45:08,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:45:08,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:45:08,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:45:08,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:45:08,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:45:08,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:45:08,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:45:08,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:45:08,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:45:08,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:45:08,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:45:08,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:45:08,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:45:08,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:45:08,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:45:08,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:45:08,422 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:45:08,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:45:08,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:45:08,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:45:08,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:45:08,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:45:08,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:45:08,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:45:08,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:45:08,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:45:08,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:45:08,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:45:08,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:45:08,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:45:08,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:45:08,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:45:08,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:45:08,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:45:08,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:45:08,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:45:08,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:45:08,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:45:08,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 22:45:08,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:45:08,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:45:08,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:45:08,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:45:08,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:45:08,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:45:08,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:45:08,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:45:08,484 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:45:08,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:45:08,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:45:08,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:45:08,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:45:08,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:45:08,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 22:45:08,486 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 22:45:08,486 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 22:45:08,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:45:08,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:45:08,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:45:08,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:45:08,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:45:08,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:45:08,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:45:08,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:45:08,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:45:08,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:45:08,488 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 22:45:08,488 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 22:45:08,488 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:45:08,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:45:08,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:45:08,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 22:45:08,489 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-19 22:45:08,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:45:08,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:45:08,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:45:08,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:45:08,806 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:45:08,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-19 22:45:08,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d480343/c3996fcec87e4585b43cd9a4c09734eb/FLAGa27de7a63 [2022-07-19 22:45:09,550 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:45:09,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-19 22:45:09,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d480343/c3996fcec87e4585b43cd9a4c09734eb/FLAGa27de7a63 [2022-07-19 22:45:09,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d480343/c3996fcec87e4585b43cd9a4c09734eb [2022-07-19 22:45:09,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:45:09,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:45:09,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:45:09,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:45:09,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:45:09,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:09" (1/1) ... [2022-07-19 22:45:09,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288c0c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:09, skipping insertion in model container [2022-07-19 22:45:09,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:09" (1/1) ... [2022-07-19 22:45:09,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:45:09,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:45:11,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-19 22:45:11,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:11,575 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 22:45:11,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:45:11,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-19 22:45:11,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:11,970 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:45:12,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-19 22:45:12,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:12,451 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:45:12,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12 WrapperNode [2022-07-19 22:45:12,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:45:12,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:45:12,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:45:12,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:45:12,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:12,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:12,873 INFO L137 Inliner]: procedures = 199, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 15657 [2022-07-19 22:45:12,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:45:12,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:45:12,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:45:12,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:45:12,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:12,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:12,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:12,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:13,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:13,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:13,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:13,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:45:13,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:45:13,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:45:13,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:45:13,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (1/1) ... [2022-07-19 22:45:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:45:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:45:13,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 22:45:13,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 22:45:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2022-07-19 22:45:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2022-07-19 22:45:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 22:45:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-19 22:45:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-19 22:45:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-19 22:45:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-19 22:45:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-19 22:45:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-19 22:45:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-19 22:45:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-19 22:45:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 22:45:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 22:45:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 22:45:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 22:45:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-19 22:45:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-19 22:45:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-19 22:45:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-19 22:45:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-19 22:45:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-19 22:45:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-19 22:45:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-19 22:45:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-19 22:45:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-19 22:45:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-19 22:45:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-19 22:45:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:45:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-19 22:45:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-19 22:45:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-19 22:45:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-19 22:45:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:45:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-19 22:45:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-19 22:45:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-19 22:45:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-19 22:45:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-19 22:45:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-19 22:45:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-19 22:45:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-19 22:45:13,427 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-19 22:45:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-19 22:45:13,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 22:45:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 22:45:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 22:45:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:45:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:45:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-19 22:45:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-19 22:45:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-19 22:45:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 22:45:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 22:45:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-19 22:45:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-19 22:45:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-19 22:45:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-19 22:45:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-19 22:45:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-19 22:45:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-19 22:45:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-19 22:45:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-19 22:45:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-19 22:45:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-19 22:45:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-19 22:45:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2022-07-19 22:45:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2022-07-19 22:45:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-19 22:45:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-19 22:45:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-19 22:45:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-19 22:45:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-19 22:45:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-19 22:45:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 22:45:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 22:45:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-19 22:45:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-19 22:45:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-19 22:45:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-19 22:45:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-19 22:45:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-19 22:45:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 22:45:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 22:45:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 22:45:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-19 22:45:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-19 22:45:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 22:45:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-19 22:45:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 22:45:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 22:45:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:45:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:45:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-19 22:45:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-19 22:45:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-19 22:45:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-19 22:45:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 22:45:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 22:45:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-19 22:45:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-19 22:45:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-19 22:45:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-19 22:45:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-19 22:45:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-19 22:45:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-19 22:45:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-19 22:45:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-19 22:45:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-19 22:45:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 22:45:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2022-07-19 22:45:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2022-07-19 22:45:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-19 22:45:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-19 22:45:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:45:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:45:14,515 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:45:14,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:45:54,783 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:45:54,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:45:54,818 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 22:45:54,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:54 BoogieIcfgContainer [2022-07-19 22:45:54,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:45:54,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:45:54,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:45:54,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:45:54,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:45:09" (1/3) ... [2022-07-19 22:45:54,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cc513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:54, skipping insertion in model container [2022-07-19 22:45:54,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:12" (2/3) ... [2022-07-19 22:45:54,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cc513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:54, skipping insertion in model container [2022-07-19 22:45:54,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:54" (3/3) ... [2022-07-19 22:45:54,832 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-19 22:45:54,841 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:45:54,841 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:45:54,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:45:54,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@39e75e85, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4721d884 [2022-07-19 22:45:54,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:45:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) [2022-07-19 22:45:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 22:45:54,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:54,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:54,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736919, now seen corresponding path program 1 times [2022-07-19 22:45:54,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:45:54,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43834442] [2022-07-19 22:45:54,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:54,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:45:54,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:45:55,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:45:55,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 22:46:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:02,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:02,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:02,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:02,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:02,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43834442] [2022-07-19 22:46:02,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43834442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:02,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:02,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003050639] [2022-07-19 22:46:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:02,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:02,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:02,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:02,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:02,346 INFO L87 Difference]: Start difference. First operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:03,000 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2022-07-19 22:46:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:03,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-19 22:46:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:03,059 INFO L225 Difference]: With dead ends: 10596 [2022-07-19 22:46:03,059 INFO L226 Difference]: Without dead ends: 5294 [2022-07-19 22:46:03,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:03,120 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8639 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8639 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:03,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8639 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:03,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-07-19 22:46:03,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2022-07-19 22:46:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 3970 states have (on average 1.5357682619647355) internal successors, (6097), 3981 states have internal predecessors, (6097), 1276 states have call successors, (1276), 48 states have call predecessors, (1276), 47 states have return successors, (1267), 1266 states have call predecessors, (1267), 1267 states have call successors, (1267) [2022-07-19 22:46:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2022-07-19 22:46:03,710 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2022-07-19 22:46:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:03,710 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2022-07-19 22:46:03,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2022-07-19 22:46:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 22:46:03,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:03,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:03,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 22:46:03,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:03,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -138225563, now seen corresponding path program 1 times [2022-07-19 22:46:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:03,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896039639] [2022-07-19 22:46:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:03,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:03,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:03,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:03,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 22:46:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:10,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:10,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:10,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:10,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:10,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896039639] [2022-07-19 22:46:10,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896039639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:10,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:10,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:10,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326566876] [2022-07-19 22:46:10,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:10,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:10,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:10,813 INFO L87 Difference]: Start difference. First operand 5294 states and 8640 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:11,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:11,464 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2022-07-19 22:46:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:11,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-19 22:46:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:11,510 INFO L225 Difference]: With dead ends: 10658 [2022-07-19 22:46:11,510 INFO L226 Difference]: Without dead ends: 5367 [2022-07-19 22:46:11,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:11,557 INFO L413 NwaCegarLoop]: 8640 mSDtfsCounter, 8370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9007 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:11,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8370 Valid, 9007 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:11,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2022-07-19 22:46:12,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2022-07-19 22:46:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 4032 states have (on average 1.5364583333333333) internal successors, (6195), 4041 states have internal predecessors, (6195), 1279 states have call successors, (1279), 54 states have call predecessors, (1279), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-19 22:46:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2022-07-19 22:46:12,193 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2022-07-19 22:46:12,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:12,196 INFO L495 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2022-07-19 22:46:12,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2022-07-19 22:46:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 22:46:12,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:12,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:12,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:12,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:12,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:12,416 INFO L85 PathProgramCache]: Analyzing trace with hash 7484506, now seen corresponding path program 1 times [2022-07-19 22:46:12,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:12,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876788845] [2022-07-19 22:46:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:12,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:12,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:12,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:12,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 22:46:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:20,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:20,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:20,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:20,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:20,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876788845] [2022-07-19 22:46:20,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876788845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:20,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:20,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:20,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009981244] [2022-07-19 22:46:20,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:20,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:20,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:20,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:20,355 INFO L87 Difference]: Start difference. First operand 5364 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:20,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:20,794 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2022-07-19 22:46:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-19 22:46:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:20,835 INFO L225 Difference]: With dead ends: 5366 [2022-07-19 22:46:20,836 INFO L226 Difference]: Without dead ends: 5363 [2022-07-19 22:46:20,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:20,844 INFO L413 NwaCegarLoop]: 8633 mSDtfsCounter, 8627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8627 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:20,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8627 Valid, 8633 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2022-07-19 22:46:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2022-07-19 22:46:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 4032 states have (on average 1.5362103174603174) internal successors, (6194), 4040 states have internal predecessors, (6194), 1278 states have call successors, (1278), 54 states have call predecessors, (1278), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-19 22:46:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2022-07-19 22:46:21,457 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2022-07-19 22:46:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:21,457 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2022-07-19 22:46:21,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2022-07-19 22:46:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 22:46:21,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:21,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:21,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:21,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 229534216, now seen corresponding path program 1 times [2022-07-19 22:46:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:21,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711276722] [2022-07-19 22:46:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:21,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:21,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:21,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:21,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 22:46:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:29,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:29,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:29,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:29,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:29,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711276722] [2022-07-19 22:46:29,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711276722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:29,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:29,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:29,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499819214] [2022-07-19 22:46:29,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:29,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:29,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:29,301 INFO L87 Difference]: Start difference. First operand 5363 states and 8743 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:29,751 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2022-07-19 22:46:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 22:46:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:29,789 INFO L225 Difference]: With dead ends: 5365 [2022-07-19 22:46:29,789 INFO L226 Difference]: Without dead ends: 5362 [2022-07-19 22:46:29,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:29,799 INFO L413 NwaCegarLoop]: 8631 mSDtfsCounter, 8624 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8624 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:29,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8624 Valid, 8631 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-07-19 22:46:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2022-07-19 22:46:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 4032 states have (on average 1.5359623015873016) internal successors, (6193), 4039 states have internal predecessors, (6193), 1277 states have call successors, (1277), 54 states have call predecessors, (1277), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-19 22:46:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2022-07-19 22:46:30,403 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2022-07-19 22:46:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:30,403 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2022-07-19 22:46:30,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2022-07-19 22:46:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 22:46:30,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:30,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:30,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:30,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:30,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854499, now seen corresponding path program 1 times [2022-07-19 22:46:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:30,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849267736] [2022-07-19 22:46:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:30,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:30,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:30,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 22:46:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:37,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 4877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:37,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:37,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:37,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:37,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849267736] [2022-07-19 22:46:37,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849267736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:37,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:37,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783299182] [2022-07-19 22:46:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:37,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:37,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:37,964 INFO L87 Difference]: Start difference. First operand 5362 states and 8741 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:38,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:38,418 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2022-07-19 22:46:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-19 22:46:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:38,461 INFO L225 Difference]: With dead ends: 5364 [2022-07-19 22:46:38,462 INFO L226 Difference]: Without dead ends: 5361 [2022-07-19 22:46:38,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:38,471 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 8621 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8621 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:38,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8621 Valid, 8629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 22:46:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-07-19 22:46:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2022-07-19 22:46:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 4032 states have (on average 1.5357142857142858) internal successors, (6192), 4038 states have internal predecessors, (6192), 1276 states have call successors, (1276), 54 states have call predecessors, (1276), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-19 22:46:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2022-07-19 22:46:39,089 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2022-07-19 22:46:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:39,090 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2022-07-19 22:46:39,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2022-07-19 22:46:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 22:46:39,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:39,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:39,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:39,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:39,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675051, now seen corresponding path program 1 times [2022-07-19 22:46:39,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:39,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084589652] [2022-07-19 22:46:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:39,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:39,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:39,315 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:39,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 22:46:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:46,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:46:46,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:46:46,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:46,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:46,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084589652] [2022-07-19 22:46:46,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084589652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:46,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:46,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:46:46,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473462434] [2022-07-19 22:46:46,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:46,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:46:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:46,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:46:46,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:46,876 INFO L87 Difference]: Start difference. First operand 5361 states and 8739 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:47,604 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2022-07-19 22:46:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:46:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-19 22:46:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:47,705 INFO L225 Difference]: With dead ends: 16061 [2022-07-19 22:46:47,705 INFO L226 Difference]: Without dead ends: 10697 [2022-07-19 22:46:47,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:46:47,760 INFO L413 NwaCegarLoop]: 10012 mSDtfsCounter, 8649 mSDsluCounter, 8651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:47,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8649 Valid, 18663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-07-19 22:46:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2022-07-19 22:46:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10688 states, 8041 states have (on average 1.5368735231936326) internal successors, (12358), 8052 states have internal predecessors, (12358), 2544 states have call successors, (2544), 105 states have call predecessors, (2544), 102 states have return successors, (2617), 2534 states have call predecessors, (2617), 2537 states have call successors, (2617) [2022-07-19 22:46:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2022-07-19 22:46:49,122 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2022-07-19 22:46:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2022-07-19 22:46:49,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:46:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2022-07-19 22:46:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 22:46:49,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:49,137 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:49,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:49,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:46:49,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:49,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1570930916, now seen corresponding path program 1 times [2022-07-19 22:46:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:46:49,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151510973] [2022-07-19 22:46:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:49,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:46:49,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:46:49,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:46:49,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 22:46:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:57,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:46:57,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 22:46:57,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:57,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:46:57,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151510973] [2022-07-19 22:46:57,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151510973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:57,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:46:57,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:46:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714138921] [2022-07-19 22:46:57,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:57,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:46:57,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:46:57,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:46:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:46:57,746 INFO L87 Difference]: Start difference. First operand 10688 states and 17519 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 22:46:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:58,529 INFO L93 Difference]: Finished difference Result 21480 states and 35292 transitions. [2022-07-19 22:46:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:46:58,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2022-07-19 22:46:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:58,575 INFO L225 Difference]: With dead ends: 21480 [2022-07-19 22:46:58,575 INFO L226 Difference]: Without dead ends: 10795 [2022-07-19 22:46:58,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:46:58,644 INFO L413 NwaCegarLoop]: 8625 mSDtfsCounter, 139 mSDsluCounter, 17199 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 25824 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:58,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 25824 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:46:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-07-19 22:46:59,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 10793. [2022-07-19 22:46:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10793 states, 8129 states have (on average 1.5368434001722229) internal successors, (12493), 8140 states have internal predecessors, (12493), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-19 22:46:59,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 17684 transitions. [2022-07-19 22:46:59,816 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 17684 transitions. Word has length 69 [2022-07-19 22:46:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:59,817 INFO L495 AbstractCegarLoop]: Abstraction has 10793 states and 17684 transitions. [2022-07-19 22:46:59,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 22:46:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 17684 transitions. [2022-07-19 22:46:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 22:46:59,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:59,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:59,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-19 22:47:00,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:47:00,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:47:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:47:00,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1925660316, now seen corresponding path program 1 times [2022-07-19 22:47:00,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:47:00,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881675674] [2022-07-19 22:47:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:47:00,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:47:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:47:00,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:47:00,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 22:47:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:47:09,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 5393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 22:47:09,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:47:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:47:09,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:47:09,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:47:09,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881675674] [2022-07-19 22:47:09,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881675674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:47:09,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:47:09,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:47:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711244656] [2022-07-19 22:47:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:47:09,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:47:09,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:47:09,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:47:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:47:09,762 INFO L87 Difference]: Start difference. First operand 10793 states and 17684 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 22:47:11,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:13,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:47:13,530 INFO L93 Difference]: Finished difference Result 21587 states and 37177 transitions. [2022-07-19 22:47:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:47:13,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-07-19 22:47:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:47:13,621 INFO L225 Difference]: With dead ends: 21587 [2022-07-19 22:47:13,621 INFO L226 Difference]: Without dead ends: 10797 [2022-07-19 22:47:13,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:47:13,784 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 0 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17254 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:47:13,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 22:47:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2022-07-19 22:47:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10797. [2022-07-19 22:47:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10797 states, 8133 states have (on average 1.5365793680068855) internal successors, (12497), 8144 states have internal predecessors, (12497), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-19 22:47:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 17688 transitions. [2022-07-19 22:47:15,068 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 17688 transitions. Word has length 78 [2022-07-19 22:47:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:47:15,068 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 17688 transitions. [2022-07-19 22:47:15,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 22:47:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 17688 transitions. [2022-07-19 22:47:15,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 22:47:15,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:47:15,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:47:15,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 22:47:15,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:47:15,287 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:47:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:47:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash 883786493, now seen corresponding path program 1 times [2022-07-19 22:47:15,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:47:15,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523714652] [2022-07-19 22:47:15,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:47:15,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:47:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:47:15,294 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:47:15,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 22:47:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:47:25,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 5507 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-19 22:47:25,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:47:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-19 22:47:25,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:47:25,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:47:25,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523714652] [2022-07-19 22:47:25,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523714652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:47:25,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:47:25,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:47:25,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594965484] [2022-07-19 22:47:25,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:47:25,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:47:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:47:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:47:25,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:47:25,979 INFO L87 Difference]: Start difference. First operand 10797 states and 17688 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 22:47:27,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:29,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:31,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:47:31,646 INFO L93 Difference]: Finished difference Result 21595 states and 37185 transitions. [2022-07-19 22:47:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:47:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2022-07-19 22:47:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:47:31,728 INFO L225 Difference]: With dead ends: 21595 [2022-07-19 22:47:31,729 INFO L226 Difference]: Without dead ends: 10801 [2022-07-19 22:47:32,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:47:32,045 INFO L413 NwaCegarLoop]: 8626 mSDtfsCounter, 39 mSDsluCounter, 8623 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17249 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:47:32,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17249 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-07-19 22:47:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-07-19 22:47:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 10801. [2022-07-19 22:47:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10801 states, 8137 states have (on average 1.5363155954282905) internal successors, (12501), 8148 states have internal predecessors, (12501), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-19 22:47:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10801 states to 10801 states and 17692 transitions. [2022-07-19 22:47:33,195 INFO L78 Accepts]: Start accepts. Automaton has 10801 states and 17692 transitions. Word has length 79 [2022-07-19 22:47:33,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:47:33,195 INFO L495 AbstractCegarLoop]: Abstraction has 10801 states and 17692 transitions. [2022-07-19 22:47:33,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-19 22:47:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10801 states and 17692 transitions. [2022-07-19 22:47:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 22:47:33,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:47:33,200 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:47:33,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-19 22:47:33,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:47:33,415 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:47:33,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:47:33,416 INFO L85 PathProgramCache]: Analyzing trace with hash -636827019, now seen corresponding path program 1 times [2022-07-19 22:47:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:47:33,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379150553] [2022-07-19 22:47:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:47:33,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:47:33,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:47:33,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:47:33,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-19 22:47:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:47:44,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 5517 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:47:44,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:47:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 22:47:44,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:47:44,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:47:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379150553] [2022-07-19 22:47:44,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379150553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:47:44,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:47:44,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:47:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9357797] [2022-07-19 22:47:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:47:44,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:47:44,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:47:44,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:47:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:47:44,425 INFO L87 Difference]: Start difference. First operand 10801 states and 17692 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 22:47:46,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:47:51,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:47:51,082 INFO L93 Difference]: Finished difference Result 21641 states and 37277 transitions. [2022-07-19 22:47:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:47:51,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-19 22:47:51,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:47:51,164 INFO L225 Difference]: With dead ends: 21641 [2022-07-19 22:47:51,165 INFO L226 Difference]: Without dead ends: 10843 [2022-07-19 22:47:51,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:47:51,255 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 11 mSDsluCounter, 33763 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42404 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:47:51,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42404 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-07-19 22:47:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-07-19 22:47:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 10817. [2022-07-19 22:47:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 8150 states have (on average 1.5354601226993865) internal successors, (12514), 8160 states have internal predecessors, (12514), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 107 states have return successors, (4182), 2553 states have call predecessors, (4182), 2552 states have call successors, (4182) [2022-07-19 22:47:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 19255 transitions. [2022-07-19 22:47:53,686 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 19255 transitions. Word has length 80 [2022-07-19 22:47:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:47:53,687 INFO L495 AbstractCegarLoop]: Abstraction has 10817 states and 19255 transitions. [2022-07-19 22:47:53,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 22:47:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 19255 transitions. [2022-07-19 22:47:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 22:47:53,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:47:53,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:47:53,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-19 22:47:53,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:47:53,904 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:47:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:47:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1163497930, now seen corresponding path program 1 times [2022-07-19 22:47:53,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:47:53,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136618215] [2022-07-19 22:47:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:47:53,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:47:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:47:53,911 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:47:53,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-19 22:48:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:48:04,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 5520 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:48:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:48:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 22:48:04,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:48:04,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:48:04,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136618215] [2022-07-19 22:48:04,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136618215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:48:04,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:48:04,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:48:04,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102216461] [2022-07-19 22:48:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:48:04,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:48:04,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:48:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:48:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:48:04,344 INFO L87 Difference]: Start difference. First operand 10817 states and 19255 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 22:48:06,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:48:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:48:11,186 INFO L93 Difference]: Finished difference Result 21665 states and 38848 transitions. [2022-07-19 22:48:11,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:48:11,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-19 22:48:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:48:11,268 INFO L225 Difference]: With dead ends: 21665 [2022-07-19 22:48:11,268 INFO L226 Difference]: Without dead ends: 10851 [2022-07-19 22:48:11,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:48:11,518 INFO L413 NwaCegarLoop]: 8632 mSDtfsCounter, 11 mSDsluCounter, 33731 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42363 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:48:11,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42363 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-19 22:48:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2022-07-19 22:48:13,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10821. [2022-07-19 22:48:13,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10821 states, 8154 states have (on average 1.5351974491047338) internal successors, (12518), 8160 states have internal predecessors, (12518), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 107 states have return successors, (4182), 2557 states have call predecessors, (4182), 2552 states have call successors, (4182) [2022-07-19 22:48:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 19259 transitions. [2022-07-19 22:48:13,792 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 19259 transitions. Word has length 80 [2022-07-19 22:48:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:48:13,792 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 19259 transitions. [2022-07-19 22:48:13,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 22:48:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 19259 transitions. [2022-07-19 22:48:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 22:48:13,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:48:13,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:48:14,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-19 22:48:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:48:14,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:48:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:48:14,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1403609912, now seen corresponding path program 1 times [2022-07-19 22:48:14,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:48:14,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250498863] [2022-07-19 22:48:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:48:14,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:48:14,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:48:14,122 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:48:14,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-19 22:48:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:48:25,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 5512 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 22:48:25,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:48:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 22:48:25,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:48:25,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:48:25,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250498863] [2022-07-19 22:48:25,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250498863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:48:25,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:48:25,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:48:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804880492] [2022-07-19 22:48:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:48:25,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:48:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:48:25,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:48:25,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:48:25,696 INFO L87 Difference]: Start difference. First operand 10821 states and 19259 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 22:48:26,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:48:26,111 INFO L93 Difference]: Finished difference Result 11081 states and 19803 transitions. [2022-07-19 22:48:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:48:26,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2022-07-19 22:48:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:48:26,186 INFO L225 Difference]: With dead ends: 11081 [2022-07-19 22:48:26,186 INFO L226 Difference]: Without dead ends: 11074 [2022-07-19 22:48:26,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:48:26,205 INFO L413 NwaCegarLoop]: 8659 mSDtfsCounter, 146 mSDsluCounter, 25910 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 34569 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:48:26,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 34569 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:48:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-07-19 22:48:28,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 10827. [2022-07-19 22:48:28,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10827 states, 8159 states have (on average 1.534869469297708) internal successors, (12523), 8164 states have internal predecessors, (12523), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 108 states have return successors, (4206), 2559 states have call predecessors, (4206), 2552 states have call successors, (4206) [2022-07-19 22:48:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10827 states to 10827 states and 19288 transitions. [2022-07-19 22:48:28,648 INFO L78 Accepts]: Start accepts. Automaton has 10827 states and 19288 transitions. Word has length 82 [2022-07-19 22:48:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:48:28,649 INFO L495 AbstractCegarLoop]: Abstraction has 10827 states and 19288 transitions. [2022-07-19 22:48:28,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 22:48:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states and 19288 transitions. [2022-07-19 22:48:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-19 22:48:28,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:48:28,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:48:28,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-19 22:48:28,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:48:28,871 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:48:28,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:48:28,872 INFO L85 PathProgramCache]: Analyzing trace with hash -768326530, now seen corresponding path program 1 times [2022-07-19 22:48:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:48:28,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144441307] [2022-07-19 22:48:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:48:28,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:48:28,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:48:28,878 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:48:28,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-19 22:48:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:48:37,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 5496 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:48:37,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:48:38,071 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-19 22:48:38,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 42 [2022-07-19 22:48:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-19 22:48:38,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:48:38,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 22:48:38,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144441307] [2022-07-19 22:48:38,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144441307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:48:38,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:48:38,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:48:38,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265223019] [2022-07-19 22:48:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:48:38,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:48:38,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 22:48:38,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:48:38,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:48:38,109 INFO L87 Difference]: Start difference. First operand 10827 states and 19288 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:48:40,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:48:43,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:48:44,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:48:47,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:48:57,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:49:03,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:49:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:49:07,326 INFO L93 Difference]: Finished difference Result 21825 states and 38883 transitions. [2022-07-19 22:49:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:49:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2022-07-19 22:49:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:49:07,419 INFO L225 Difference]: With dead ends: 21825 [2022-07-19 22:49:07,419 INFO L226 Difference]: Without dead ends: 11001 [2022-07-19 22:49:07,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:49:07,517 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 204 mSDsluCounter, 15794 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 24446 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:49:07,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 24446 Invalid, 1576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1568 Invalid, 3 Unknown, 0 Unchecked, 28.4s Time] [2022-07-19 22:49:07,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-07-19 22:49:09,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10948. [2022-07-19 22:49:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10948 states, 8244 states have (on average 1.5336001940805435) internal successors, (12643), 8261 states have internal predecessors, (12643), 2585 states have call successors, (2585), 120 states have call predecessors, (2585), 118 states have return successors, (4244), 2570 states have call predecessors, (4244), 2578 states have call successors, (4244) [2022-07-19 22:49:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10948 states to 10948 states and 19472 transitions. [2022-07-19 22:49:09,872 INFO L78 Accepts]: Start accepts. Automaton has 10948 states and 19472 transitions. Word has length 76 [2022-07-19 22:49:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:49:09,872 INFO L495 AbstractCegarLoop]: Abstraction has 10948 states and 19472 transitions. [2022-07-19 22:49:09,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 22:49:09,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10948 states and 19472 transitions. [2022-07-19 22:49:09,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 22:49:09,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:49:09,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:49:10,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-19 22:49:10,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 22:49:10,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:49:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:49:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash 636354924, now seen corresponding path program 1 times [2022-07-19 22:49:10,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 22:49:10,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424683540] [2022-07-19 22:49:10,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:49:10,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 22:49:10,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 22:49:10,083 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 22:49:10,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process