./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.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 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 04:05:56,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 04:05:56,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 04:05:56,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 04:05:56,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 04:05:56,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 04:05:56,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 04:05:56,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 04:05:56,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 04:05:56,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 04:05:56,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 04:05:56,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 04:05:56,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 04:05:56,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 04:05:56,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 04:05:56,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 04:05:56,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 04:05:56,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 04:05:56,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 04:05:56,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 04:05:56,587 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 04:05:56,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 04:05:56,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 04:05:56,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 04:05:56,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 04:05:56,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 04:05:56,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 04:05:56,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 04:05:56,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 04:05:56,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 04:05:56,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 04:05:56,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 04:05:56,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 04:05:56,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 04:05:56,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 04:05:56,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 04:05:56,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 04:05:56,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 04:05:56,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 04:05:56,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 04:05:56,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 04:05:56,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 04:05:56,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 04:05:56,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 04:05:56,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 04:05:56,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 04:05:56,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 04:05:56,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 04:05:56,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 04:05:56,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 04:05:56,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 04:05:56,647 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 04:05:56,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 04:05:56,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 04:05:56,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 04:05:56,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 04:05:56,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 04:05:56,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 04:05:56,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 04:05:56,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 04:05:56,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 04:05:56,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 04:05:56,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 04:05:56,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 04:05:56,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:05:56,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 04:05:56,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 04:05:56,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 04:05:56,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 04:05:56,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 04:05:56,652 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 04:05:56,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 04:05:56,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 04:05:56,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-23 04:05:56,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 04:05:56,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 04:05:56,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 04:05:56,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 04:05:56,877 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 04:05:56,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-23 04:05:56,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff281c0c/b1d94da3b1be43aeb63464ebd4cea7ce/FLAG07e07b2bd [2022-07-23 04:05:57,731 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 04:05:57,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-23 04:05:57,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff281c0c/b1d94da3b1be43aeb63464ebd4cea7ce/FLAG07e07b2bd [2022-07-23 04:05:58,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff281c0c/b1d94da3b1be43aeb63464ebd4cea7ce [2022-07-23 04:05:58,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 04:05:58,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 04:05:58,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 04:05:58,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 04:05:58,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 04:05:58,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:05:58" (1/1) ... [2022-07-23 04:05:58,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27816201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:58, skipping insertion in model container [2022-07-23 04:05:58,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:05:58" (1/1) ... [2022-07-23 04:05:58,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 04:05:58,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:06:00,260 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-23 04:06:00,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:06:00,398 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 04:06:00,594 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) [2022-07-23 04:06:00,599 INFO L158 Benchmark]: Toolchain (without parser) took 2384.17ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 57.4MB in the beginning and 48.9MB in the end (delta: 8.6MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2022-07-23 04:06:00,600 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 04:06:00,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2382.22ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 57.1MB in the beginning and 48.9MB in the end (delta: 8.2MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2022-07-23 04:06:00,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2382.22ms. Allocated memory was 96.5MB in the beginning and 151.0MB in the end (delta: 54.5MB). Free memory was 57.1MB in the beginning and 48.9MB in the end (delta: 8.2MB). Peak memory consumption was 75.0MB. 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.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 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 04:06:02,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 04:06:02,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 04:06:02,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 04:06:02,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 04:06:02,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 04:06:02,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 04:06:02,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 04:06:02,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 04:06:02,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 04:06:02,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 04:06:02,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 04:06:02,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 04:06:02,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 04:06:02,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 04:06:02,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 04:06:02,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 04:06:02,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 04:06:02,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 04:06:02,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 04:06:02,444 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 04:06:02,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 04:06:02,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 04:06:02,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 04:06:02,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 04:06:02,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 04:06:02,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 04:06:02,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 04:06:02,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 04:06:02,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 04:06:02,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 04:06:02,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 04:06:02,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 04:06:02,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 04:06:02,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 04:06:02,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 04:06:02,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 04:06:02,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 04:06:02,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 04:06:02,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 04:06:02,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 04:06:02,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 04:06:02,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 04:06:02,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 04:06:02,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 04:06:02,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 04:06:02,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 04:06:02,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 04:06:02,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 04:06:02,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 04:06:02,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 04:06:02,510 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 04:06:02,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 04:06:02,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 04:06:02,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 04:06:02,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 04:06:02,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 04:06:02,518 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 04:06:02,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 04:06:02,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 04:06:02,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 04:06:02,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 04:06:02,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 04:06:02,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 04:06:02,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 04:06:02,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 04:06:02,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:06:02,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 04:06:02,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 04:06:02,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 04:06:02,521 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 04:06:02,521 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 04:06:02,521 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 04:06:02,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 04:06:02,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 04:06:02,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 04:06:02,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-23 04:06:02,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 04:06:02,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 04:06:02,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 04:06:02,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 04:06:02,860 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 04:06:02,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-23 04:06:02,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b8c5c6b/e2e5bfa4ace44b88a6804216e966c8be/FLAG9b04b57ac [2022-07-23 04:06:03,754 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 04:06:03,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-23 04:06:03,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b8c5c6b/e2e5bfa4ace44b88a6804216e966c8be/FLAG9b04b57ac [2022-07-23 04:06:04,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b8c5c6b/e2e5bfa4ace44b88a6804216e966c8be [2022-07-23 04:06:04,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 04:06:04,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 04:06:04,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 04:06:04,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 04:06:04,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 04:06:04,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:06:04" (1/1) ... [2022-07-23 04:06:04,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fc266b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:04, skipping insertion in model container [2022-07-23 04:06:04,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:06:04" (1/1) ... [2022-07-23 04:06:04,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 04:06:04,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:06:06,499 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-23 04:06:06,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:06:06,745 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 04:06:06,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 04:06:07,235 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-23 04:06:07,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:06:07,285 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 04:06:07,847 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-23 04:06:07,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 04:06:07,949 INFO L208 MainTranslator]: Completed translation [2022-07-23 04:06:07,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07 WrapperNode [2022-07-23 04:06:07,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 04:06:07,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 04:06:07,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 04:06:07,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 04:06:07,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,469 INFO L137 Inliner]: procedures = 180, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 15594 [2022-07-23 04:06:08,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 04:06:08,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 04:06:08,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 04:06:08,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 04:06:08,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:08,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:09,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:09,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 04:06:09,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 04:06:09,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 04:06:09,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 04:06:09,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (1/1) ... [2022-07-23 04:06:09,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 04:06:09,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 04:06:09,129 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) [2022-07-23 04:06:09,147 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 [2022-07-23 04:06:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-23 04:06:09,164 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-23 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-23 04:06:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-23 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 04:06:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 04:06:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-23 04:06:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-23 04:06:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-23 04:06:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-23 04:06:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 04:06:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 04:06:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 04:06:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-23 04:06:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-23 04:06:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-23 04:06:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-23 04:06:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-23 04:06:09,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-23 04:06:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-23 04:06:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-23 04:06:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 04:06:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 04:06:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-23 04:06:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-23 04:06:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 04:06:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 04:06:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-23 04:06:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-23 04:06:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-23 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-23 04:06:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 04:06:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-23 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-23 04:06:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-23 04:06:09,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-23 04:06:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 04:06:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 04:06:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 04:06:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-23 04:06:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-23 04:06:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-23 04:06:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-23 04:06:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 04:06:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 04:06:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-23 04:06:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-23 04:06:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-23 04:06:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-23 04:06:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 04:06:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-23 04:06:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 04:06:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 04:06:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-23 04:06:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-23 04:06:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-23 04:06:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-23 04:06:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 04:06:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 04:06:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-23 04:06:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-23 04:06:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 04:06:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 04:06:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 04:06:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-23 04:06:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-23 04:06:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-23 04:06:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-23 04:06:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-23 04:06:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-23 04:06:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 04:06:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-23 04:06:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-23 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-23 04:06:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-23 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-23 04:06:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-23 04:06:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-23 04:06:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-23 04:06:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-23 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-23 04:06:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-23 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-23 04:06:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-23 04:06:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-23 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 04:06:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 04:06:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 04:06:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 04:06:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-23 04:06:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-23 04:06:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 04:06:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-23 04:06:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-23 04:06:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 04:06:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 04:06:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-23 04:06:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-23 04:06:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-23 04:06:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-23 04:06:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-23 04:06:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-23 04:06:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-23 04:06:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-23 04:06:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 04:06:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-23 04:06:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-23 04:06:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-23 04:06:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-23 04:06:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-23 04:06:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-23 04:06:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 04:06:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 04:06:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-23 04:06:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-23 04:06:10,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 04:06:10,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 04:06:55,501 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 04:06:55,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 04:06:55,549 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 04:06:55,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:06:55 BoogieIcfgContainer [2022-07-23 04:06:55,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 04:06:55,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 04:06:55,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 04:06:55,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 04:06:55,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 04:06:04" (1/3) ... [2022-07-23 04:06:55,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189cad42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:06:55, skipping insertion in model container [2022-07-23 04:06:55,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:06:07" (2/3) ... [2022-07-23 04:06:55,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189cad42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:06:55, skipping insertion in model container [2022-07-23 04:06:55,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:06:55" (3/3) ... [2022-07-23 04:06:55,565 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-23 04:06:55,577 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 04:06:55,578 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 04:06:55,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 04:06:55,725 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@72b543ee, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ef34b66 [2022-07-23 04:06:55,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 04:06:55,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) [2022-07-23 04:06:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 04:06:55,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:06:55,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:06:55,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:06:55,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:06:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 715822242, now seen corresponding path program 1 times [2022-07-23 04:06:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:06:55,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362240207] [2022-07-23 04:06:55,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:06:55,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:06:55,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:06:55,781 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) [2022-07-23 04:06:55,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 04:07:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 04:07:03,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 04:07:03,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:03,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:03,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362240207] [2022-07-23 04:07:03,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362240207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:03,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:03,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:07:03,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803764485] [2022-07-23 04:07:03,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:03,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:07:03,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:03,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:07:03,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:07:03,505 INFO L87 Difference]: Start difference. First operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) 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) [2022-07-23 04:07:04,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:04,391 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2022-07-23 04:07:04,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:07:04,394 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 [2022-07-23 04:07:04,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:04,468 INFO L225 Difference]: With dead ends: 10704 [2022-07-23 04:07:04,469 INFO L226 Difference]: Without dead ends: 5381 [2022-07-23 04:07:04,551 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 [2022-07-23 04:07:04,554 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 8384 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8384 SdHoareTripleChecker+Valid, 9009 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 04:07:04,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8384 Valid, 9009 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 04:07:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2022-07-23 04:07:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2022-07-23 04:07:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 4031 states have (on average 1.528404862317043) internal successors, (6161), 4039 states have internal predecessors, (6161), 1295 states have call successors, (1295), 53 states have call predecessors, (1295), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-23 04:07:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2022-07-23 04:07:05,591 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2022-07-23 04:07:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:07:05,592 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2022-07-23 04:07:05,592 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) [2022-07-23 04:07:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2022-07-23 04:07:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 04:07:05,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:07:05,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:07:05,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 04:07:05,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:07:05,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:07:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:07:05,815 INFO L85 PathProgramCache]: Analyzing trace with hash 713153294, now seen corresponding path program 1 times [2022-07-23 04:07:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:07:05,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005696316] [2022-07-23 04:07:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:07:05,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:07:05,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:07:05,826 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) [2022-07-23 04:07:05,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 04:07:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:13,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 04:07:13,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 04:07:13,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:13,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:13,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005696316] [2022-07-23 04:07:13,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005696316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:13,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:13,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:07:13,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239519704] [2022-07-23 04:07:13,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:13,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:07:13,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:13,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:07:13,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:07:13,383 INFO L87 Difference]: Start difference. First operand 5379 states and 8745 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) [2022-07-23 04:07:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:13,880 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2022-07-23 04:07:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:07:13,880 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 [2022-07-23 04:07:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:13,930 INFO L225 Difference]: With dead ends: 5381 [2022-07-23 04:07:13,930 INFO L226 Difference]: Without dead ends: 5378 [2022-07-23 04:07:13,939 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 [2022-07-23 04:07:13,941 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8638 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 [2022-07-23 04:07:13,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8638 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 04:07:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2022-07-23 04:07:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2022-07-23 04:07:14,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 4031 states have (on average 1.528156784916894) internal successors, (6160), 4038 states have internal predecessors, (6160), 1294 states have call successors, (1294), 53 states have call predecessors, (1294), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-23 04:07:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2022-07-23 04:07:14,889 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2022-07-23 04:07:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:07:14,893 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2022-07-23 04:07:14,894 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) [2022-07-23 04:07:14,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2022-07-23 04:07:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 04:07:14,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:07:14,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:07:15,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 04:07:15,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:07:15,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:07:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:07:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash 630420773, now seen corresponding path program 1 times [2022-07-23 04:07:15,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:07:15,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604571824] [2022-07-23 04:07:15,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:07:15,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:07:15,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:07:15,115 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) [2022-07-23 04:07:15,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 04:07:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:22,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 4711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 04:07:22,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 04:07:22,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:22,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:22,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604571824] [2022-07-23 04:07:22,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604571824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:22,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:22,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:07:22,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142611096] [2022-07-23 04:07:22,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:22,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:07:22,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:22,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:07:22,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:07:22,758 INFO L87 Difference]: Start difference. First operand 5378 states and 8743 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) [2022-07-23 04:07:23,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:23,240 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2022-07-23 04:07:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:07:23,240 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 [2022-07-23 04:07:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:23,292 INFO L225 Difference]: With dead ends: 5380 [2022-07-23 04:07:23,293 INFO L226 Difference]: Without dead ends: 5377 [2022-07-23 04:07:23,302 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 [2022-07-23 04:07:23,303 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 8635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8635 SdHoareTripleChecker+Valid, 8641 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 [2022-07-23 04:07:23,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8635 Valid, 8641 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 04:07:23,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2022-07-23 04:07:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2022-07-23 04:07:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 4031 states have (on average 1.5279087075167452) internal successors, (6159), 4037 states have internal predecessors, (6159), 1293 states have call successors, (1293), 53 states have call predecessors, (1293), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-23 04:07:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2022-07-23 04:07:24,139 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2022-07-23 04:07:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:07:24,139 INFO L495 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2022-07-23 04:07:24,139 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) [2022-07-23 04:07:24,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2022-07-23 04:07:24,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-23 04:07:24,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:07:24,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 04:07:24,355 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-07-23 04:07:24,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 04:07:24,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:07:24,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:07:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:07:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282511, now seen corresponding path program 1 times [2022-07-23 04:07:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:07:24,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955985952] [2022-07-23 04:07:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:07:24,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:07:24,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:07:24,384 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) [2022-07-23 04:07:24,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 04:07:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:31,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 4712 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 04:07:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 04:07:31,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:31,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:31,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955985952] [2022-07-23 04:07:31,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955985952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:31,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:31,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:07:31,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587484517] [2022-07-23 04:07:31,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:31,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:07:31,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:31,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:07:31,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:07:31,714 INFO L87 Difference]: Start difference. First operand 5377 states and 8741 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) [2022-07-23 04:07:32,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:32,449 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2022-07-23 04:07:32,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:07:32,450 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 [2022-07-23 04:07:32,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:32,576 INFO L225 Difference]: With dead ends: 16109 [2022-07-23 04:07:32,577 INFO L226 Difference]: Without dead ends: 10731 [2022-07-23 04:07:32,642 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 [2022-07-23 04:07:32,645 INFO L413 NwaCegarLoop]: 10040 mSDtfsCounter, 8663 mSDsluCounter, 8663 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8663 SdHoareTripleChecker+Valid, 18703 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 [2022-07-23 04:07:32,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8663 Valid, 18703 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 04:07:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-07-23 04:07:33,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2022-07-23 04:07:33,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 8045 states have (on average 1.5286513362336855) internal successors, (12298), 8055 states have internal predecessors, (12298), 2579 states have call successors, (2579), 104 states have call predecessors, (2579), 102 states have return successors, (2653), 2571 states have call predecessors, (2653), 2573 states have call successors, (2653) [2022-07-23 04:07:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2022-07-23 04:07:33,999 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2022-07-23 04:07:33,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:07:33,999 INFO L495 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2022-07-23 04:07:33,999 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) [2022-07-23 04:07:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2022-07-23 04:07:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-23 04:07:34,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:07:34,013 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] [2022-07-23 04:07:34,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 04:07:34,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:07:34,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:07:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:07:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash -874384355, now seen corresponding path program 1 times [2022-07-23 04:07:34,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:07:34,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071700743] [2022-07-23 04:07:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:07:34,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:07:34,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:07:34,241 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) [2022-07-23 04:07:34,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 04:07:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:42,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 5199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 04:07:42,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 04:07:42,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:42,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:42,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071700743] [2022-07-23 04:07:42,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071700743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:42,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:42,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 04:07:42,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261875931] [2022-07-23 04:07:42,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:42,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 04:07:42,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 04:07:42,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 04:07:42,113 INFO L87 Difference]: Start difference. First operand 10727 states and 17530 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) [2022-07-23 04:07:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:43,007 INFO L93 Difference]: Finished difference Result 21554 states and 35306 transitions. [2022-07-23 04:07:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 04:07:43,008 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 [2022-07-23 04:07:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:43,109 INFO L225 Difference]: With dead ends: 21554 [2022-07-23 04:07:43,110 INFO L226 Difference]: Without dead ends: 10830 [2022-07-23 04:07:43,222 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 [2022-07-23 04:07:43,223 INFO L413 NwaCegarLoop]: 8637 mSDtfsCounter, 131 mSDsluCounter, 17223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 25860 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 04:07:43,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 25860 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 04:07:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10830 states. [2022-07-23 04:07:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10830 to 10828. [2022-07-23 04:07:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10828 states, 8129 states have (on average 1.5284782876122525) internal successors, (12425), 8139 states have internal predecessors, (12425), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-23 04:07:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 17687 transitions. [2022-07-23 04:07:44,693 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 17687 transitions. Word has length 69 [2022-07-23 04:07:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:07:44,693 INFO L495 AbstractCegarLoop]: Abstraction has 10828 states and 17687 transitions. [2022-07-23 04:07:44,694 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) [2022-07-23 04:07:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 17687 transitions. [2022-07-23 04:07:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-23 04:07:44,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:07:44,699 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] [2022-07-23 04:07:44,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 04:07:44,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:07:44,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:07:44,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:07:44,920 INFO L85 PathProgramCache]: Analyzing trace with hash 810051597, now seen corresponding path program 1 times [2022-07-23 04:07:44,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:07:44,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934726994] [2022-07-23 04:07:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:07:44,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:07:44,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:07:44,928 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) [2022-07-23 04:07:44,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 04:07:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:07:54,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 5229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 04:07:54,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:07:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 04:07:54,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:07:54,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:07:54,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934726994] [2022-07-23 04:07:54,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934726994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:07:54,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:07:54,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:07:54,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554140150] [2022-07-23 04:07:54,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:07:54,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 04:07:54,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:07:54,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 04:07:54,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 04:07:54,684 INFO L87 Difference]: Start difference. First operand 10828 states and 17687 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) [2022-07-23 04:07:56,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:07:58,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:07:59,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:07:59,123 INFO L93 Difference]: Finished difference Result 21657 states and 37207 transitions. [2022-07-23 04:07:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 04:07:59,125 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 [2022-07-23 04:07:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:07:59,214 INFO L225 Difference]: With dead ends: 21657 [2022-07-23 04:07:59,215 INFO L226 Difference]: Without dead ends: 10832 [2022-07-23 04:07:59,350 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 [2022-07-23 04:07:59,354 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 0 mSDsluCounter, 8637 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17278 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-23 04:07:59,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17278 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-07-23 04:07:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-07-23 04:08:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10832. [2022-07-23 04:08:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10832 states, 8133 states have (on average 1.5282183696053118) internal successors, (12429), 8143 states have internal predecessors, (12429), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-23 04:08:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10832 states to 10832 states and 17691 transitions. [2022-07-23 04:08:00,922 INFO L78 Accepts]: Start accepts. Automaton has 10832 states and 17691 transitions. Word has length 78 [2022-07-23 04:08:00,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:08:00,925 INFO L495 AbstractCegarLoop]: Abstraction has 10832 states and 17691 transitions. [2022-07-23 04:08:00,925 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) [2022-07-23 04:08:00,925 INFO L276 IsEmpty]: Start isEmpty. Operand 10832 states and 17691 transitions. [2022-07-23 04:08:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-23 04:08:00,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:08:00,932 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] [2022-07-23 04:08:01,151 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-23 04:08:01,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 04:08:01,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:08:01,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:08:01,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:08:01,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2145203385, now seen corresponding path program 1 times [2022-07-23 04:08:01,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:08:01,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871187719] [2022-07-23 04:08:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:08:01,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:08:01,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:08:01,205 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) [2022-07-23 04:08:01,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 04:08:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:08:11,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 5331 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 04:08:11,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:08:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 04:08:11,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:08:11,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:08:11,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871187719] [2022-07-23 04:08:11,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871187719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:08:11,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:08:11,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 04:08:11,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833274466] [2022-07-23 04:08:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:08:11,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 04:08:11,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:08:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 04:08:11,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 04:08:11,160 INFO L87 Difference]: Start difference. First operand 10832 states and 17691 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) [2022-07-23 04:08:13,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:08:14,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:08:16,423 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 [] [2022-07-23 04:08:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:08:16,916 INFO L93 Difference]: Finished difference Result 21665 states and 37215 transitions. [2022-07-23 04:08:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 04:08:16,917 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 [2022-07-23 04:08:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:08:17,022 INFO L225 Difference]: With dead ends: 21665 [2022-07-23 04:08:17,023 INFO L226 Difference]: Without dead ends: 10836 [2022-07-23 04:08:17,165 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 [2022-07-23 04:08:17,166 INFO L413 NwaCegarLoop]: 8638 mSDtfsCounter, 37 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 17273 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 [2022-07-23 04:08:17,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 17273 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-07-23 04:08:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-07-23 04:08:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10836. [2022-07-23 04:08:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10836 states, 8137 states have (on average 1.5279587071402236) internal successors, (12433), 8147 states have internal predecessors, (12433), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-23 04:08:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10836 states to 10836 states and 17695 transitions. [2022-07-23 04:08:18,532 INFO L78 Accepts]: Start accepts. Automaton has 10836 states and 17695 transitions. Word has length 79 [2022-07-23 04:08:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:08:18,533 INFO L495 AbstractCegarLoop]: Abstraction has 10836 states and 17695 transitions. [2022-07-23 04:08:18,533 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) [2022-07-23 04:08:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 10836 states and 17695 transitions. [2022-07-23 04:08:18,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-23 04:08:18,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:08:18,538 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] [2022-07-23 04:08:18,759 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-23 04:08:18,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 04:08:18,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:08:18,775 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:08:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:08:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1158803849, now seen corresponding path program 1 times [2022-07-23 04:08:18,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:08:18,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131583038] [2022-07-23 04:08:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:08:18,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:08:18,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:08:18,820 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) [2022-07-23 04:08:18,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 04:08:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:08:29,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 5341 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 04:08:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:08:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 04:08:29,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:08:29,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:08:29,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131583038] [2022-07-23 04:08:29,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131583038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:08:29,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:08:29,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 04:08:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316724606] [2022-07-23 04:08:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:08:29,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 04:08:29,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:08:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 04:08:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 04:08:29,352 INFO L87 Difference]: Start difference. First operand 10836 states and 17695 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) [2022-07-23 04:08:31,379 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 [] [2022-07-23 04:08:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:08:36,300 INFO L93 Difference]: Finished difference Result 21711 states and 37307 transitions. [2022-07-23 04:08:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:08:36,301 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 [2022-07-23 04:08:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:08:36,412 INFO L225 Difference]: With dead ends: 21711 [2022-07-23 04:08:36,412 INFO L226 Difference]: Without dead ends: 10878 [2022-07-23 04:08:36,520 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 [2022-07-23 04:08:36,522 INFO L413 NwaCegarLoop]: 8642 mSDtfsCounter, 11 mSDsluCounter, 33760 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42402 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-23 04:08:36,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42402 Invalid, 819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-07-23 04:08:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2022-07-23 04:08:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 10852. [2022-07-23 04:08:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10852 states, 8150 states have (on average 1.527116564417178) internal successors, (12446), 8159 states have internal predecessors, (12446), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 107 states have return successors, (4242), 2590 states have call predecessors, (4242), 2588 states have call successors, (4242) [2022-07-23 04:08:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 19282 transitions. [2022-07-23 04:08:39,393 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 19282 transitions. Word has length 80 [2022-07-23 04:08:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:08:39,394 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 19282 transitions. [2022-07-23 04:08:39,394 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) [2022-07-23 04:08:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 19282 transitions. [2022-07-23 04:08:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-23 04:08:39,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:08:39,410 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] [2022-07-23 04:08:39,633 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-23 04:08:39,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 04:08:39,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:08:39,654 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:08:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:08:39,654 INFO L85 PathProgramCache]: Analyzing trace with hash 705917835, now seen corresponding path program 1 times [2022-07-23 04:08:39,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:08:39,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921668374] [2022-07-23 04:08:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:08:39,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:08:39,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:08:39,663 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) [2022-07-23 04:08:39,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 04:08:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:08:49,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 5344 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 04:08:49,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:08:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 04:08:49,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:08:49,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:08:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921668374] [2022-07-23 04:08:49,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921668374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:08:49,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:08:49,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 04:08:49,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904982806] [2022-07-23 04:08:49,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:08:49,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 04:08:49,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:08:49,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 04:08:49,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 04:08:49,992 INFO L87 Difference]: Start difference. First operand 10852 states and 19282 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) [2022-07-23 04:08:52,014 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 [] [2022-07-23 04:08:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:08:57,282 INFO L93 Difference]: Finished difference Result 21735 states and 38902 transitions. [2022-07-23 04:08:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 04:08:57,283 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 [2022-07-23 04:08:57,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:08:57,410 INFO L225 Difference]: With dead ends: 21735 [2022-07-23 04:08:57,410 INFO L226 Difference]: Without dead ends: 10886 [2022-07-23 04:08:57,539 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 [2022-07-23 04:08:57,540 INFO L413 NwaCegarLoop]: 8653 mSDtfsCounter, 10 mSDsluCounter, 33799 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42452 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-23 04:08:57,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42452 Invalid, 819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-23 04:08:57,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-07-23 04:09:00,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 10856. [2022-07-23 04:09:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10856 states, 8154 states have (on average 1.5268579838116263) internal successors, (12450), 8159 states have internal predecessors, (12450), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 107 states have return successors, (4242), 2594 states have call predecessors, (4242), 2588 states have call successors, (4242) [2022-07-23 04:09:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10856 states to 10856 states and 19286 transitions. [2022-07-23 04:09:00,192 INFO L78 Accepts]: Start accepts. Automaton has 10856 states and 19286 transitions. Word has length 80 [2022-07-23 04:09:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:09:00,193 INFO L495 AbstractCegarLoop]: Abstraction has 10856 states and 19286 transitions. [2022-07-23 04:09:00,193 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) [2022-07-23 04:09:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 10856 states and 19286 transitions. [2022-07-23 04:09:00,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-23 04:09:00,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:09:00,199 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] [2022-07-23 04:09:00,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 04:09:00,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:09:00,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:09:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:09:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1923976951, now seen corresponding path program 1 times [2022-07-23 04:09:00,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:09:00,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098187720] [2022-07-23 04:09:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:09:00,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:09:00,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:09:00,423 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) [2022-07-23 04:09:00,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 04:09:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 04:09:09,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 04:09:09,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 04:09:09,872 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-23 04:09:09,873 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 [2022-07-23 04:09:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 04:09:09,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 04:09:09,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 04:09:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098187720] [2022-07-23 04:09:09,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098187720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 04:09:09,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 04:09:09,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 04:09:09,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722629096] [2022-07-23 04:09:09,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 04:09:09,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 04:09:09,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 04:09:09,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 04:09:09,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 04:09:09,921 INFO L87 Difference]: Start difference. First operand 10856 states and 19286 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) [2022-07-23 04:09:12,629 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 [] [2022-07-23 04:09:15,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:09:17,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:09:19,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:09:30,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:09:36,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 04:09:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 04:09:40,693 INFO L93 Difference]: Finished difference Result 21880 states and 38872 transitions. [2022-07-23 04:09:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 04:09:40,694 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 [2022-07-23 04:09:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 04:09:40,781 INFO L225 Difference]: With dead ends: 21880 [2022-07-23 04:09:40,781 INFO L226 Difference]: Without dead ends: 11027 [2022-07-23 04:09:40,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 04:09:40,867 INFO L413 NwaCegarLoop]: 8666 mSDtfsCounter, 199 mSDsluCounter, 15876 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 24542 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2022-07-23 04:09:40,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 24542 Invalid, 1516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1507 Invalid, 4 Unknown, 0 Unchecked, 29.9s Time] [2022-07-23 04:09:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11027 states. [2022-07-23 04:09:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11027 to 10974. [2022-07-23 04:09:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10974 states, 8236 states have (on average 1.5256192326372024) internal successors, (12565), 8253 states have internal predecessors, (12565), 2620 states have call successors, (2620), 119 states have call predecessors, (2620), 117 states have return successors, (4278), 2605 states have call predecessors, (4278), 2614 states have call successors, (4278) [2022-07-23 04:09:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 19463 transitions. [2022-07-23 04:09:43,419 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 19463 transitions. Word has length 76 [2022-07-23 04:09:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 04:09:43,420 INFO L495 AbstractCegarLoop]: Abstraction has 10974 states and 19463 transitions. [2022-07-23 04:09:43,420 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) [2022-07-23 04:09:43,420 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 19463 transitions. [2022-07-23 04:09:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 04:09:43,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 04:09:43,428 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] [2022-07-23 04:09:43,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-23 04:09:43,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 04:09:43,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 04:09:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 04:09:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash -699764635, now seen corresponding path program 1 times [2022-07-23 04:09:43,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 04:09:43,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613626719] [2022-07-23 04:09:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 04:09:43,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 04:09:43,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 04:09:43,647 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) [2022-07-23 04:09:43,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process