./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-eb692b5 [2022-07-20 03:50:54,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:50:54,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:50:54,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:50:54,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:50:54,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:50:54,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:50:54,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:50:55,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:50:55,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:50:55,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:50:55,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:50:55,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:50:55,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:50:55,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:50:55,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:50:55,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:50:55,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:50:55,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:50:55,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:50:55,034 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:50:55,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:50:55,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:50:55,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:50:55,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:50:55,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:50:55,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:50:55,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:50:55,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:50:55,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:50:55,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:50:55,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:50:55,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:50:55,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:50:55,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:50:55,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:50:55,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:50:55,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:50:55,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:50:55,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:50:55,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:50:55,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:50:55,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 03:50:55,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:50:55,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:50:55,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:50:55,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:50:55,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:50:55,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:50:55,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:50:55,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:50:55,096 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:50:55,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:50:55,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 03:50:55,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:50:55,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:50:55,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:50:55,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:50:55,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:50:55,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:50:55,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:50:55,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:50:55,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:50:55,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:50:55,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:50:55,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:50:55,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:50:55,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:50:55,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 03:50:55,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 03:50:55,101 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:50:55,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:50:55,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:50:55,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-20 03:50:55,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:50:55,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:50:55,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:50:55,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:50:55,387 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:50:55,389 INFO L432 ainManager$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 [2022-07-20 03:50:55,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2755e2430/4738adf9fc234723815645a74c5f2a57/FLAG3d5570918 [2022-07-20 03:50:56,232 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:50:56,232 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 [2022-07-20 03:50:56,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2755e2430/4738adf9fc234723815645a74c5f2a57/FLAG3d5570918 [2022-07-20 03:50:56,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2755e2430/4738adf9fc234723815645a74c5f2a57 [2022-07-20 03:50:56,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:50:56,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:50:56,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:50:56,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:50:56,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:50:56,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:50:56" (1/1) ... [2022-07-20 03:50:56,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b37a212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:50:56, skipping insertion in model container [2022-07-20 03:50:56,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:50:56" (1/1) ... [2022-07-20 03:50:56,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:50:56,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:50:58,927 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] [2022-07-20 03:50:59,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:50:59,146 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:50:59,329 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) [2022-07-20 03:50:59,339 INFO L158 Benchmark]: Toolchain (without parser) took 2600.52ms. Allocated memory was 109.1MB in the beginning and 241.2MB in the end (delta: 132.1MB). Free memory was 62.0MB in the beginning and 123.0MB in the end (delta: -61.0MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-07-20 03:50:59,340 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 03:50:59,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2598.28ms. Allocated memory was 109.1MB in the beginning and 241.2MB in the end (delta: 132.1MB). Free memory was 61.7MB in the beginning and 123.0MB in the end (delta: -61.3MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-07-20 03:50:59,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2598.28ms. Allocated memory was 109.1MB in the beginning and 241.2MB in the end (delta: 132.1MB). Free memory was 61.7MB in the beginning and 123.0MB in the end (delta: -61.3MB). Peak memory consumption was 69.5MB. 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-?-eb692b5 [2022-07-20 03:51:01,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:51:01,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:51:01,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:51:01,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:51:01,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:51:01,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:51:01,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:51:01,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:51:01,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:51:01,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:51:01,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:51:01,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:51:01,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:51:01,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:51:01,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:51:01,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:51:01,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:51:01,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:51:01,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:51:01,233 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:51:01,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:51:01,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:51:01,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:51:01,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:51:01,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:51:01,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:51:01,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:51:01,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:51:01,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:51:01,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:51:01,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:51:01,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:51:01,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:51:01,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:51:01,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:51:01,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:51:01,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:51:01,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:51:01,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:51:01,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:51:01,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:51:01,260 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 03:51:01,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:51:01,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:51:01,289 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:51:01,289 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:51:01,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:51:01,290 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:51:01,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:51:01,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:51:01,291 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:51:01,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:51:01,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:51:01,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:51:01,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:51:01,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:51:01,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 03:51:01,293 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 03:51:01,293 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 03:51:01,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:51:01,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:51:01,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:51:01,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:51:01,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:51:01,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:51:01,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:51:01,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:51:01,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:51:01,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:51:01,296 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 03:51:01,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 03:51:01,296 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:51:01,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:51:01,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:51:01,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 03:51:01,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-20 03:51:01,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:51:01,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:51:01,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:51:01,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:51:01,639 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:51:01,641 INFO L432 ainManager$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 [2022-07-20 03:51:01,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ab3bd8/11bdc3936ef64881a22ef64e796b098d/FLAGb0fe9e0c9 [2022-07-20 03:51:02,628 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:51:02,629 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 [2022-07-20 03:51:02,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ab3bd8/11bdc3936ef64881a22ef64e796b098d/FLAGb0fe9e0c9 [2022-07-20 03:51:02,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ab3bd8/11bdc3936ef64881a22ef64e796b098d [2022-07-20 03:51:02,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:51:02,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:51:02,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:51:02,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:51:02,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:51:02,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:02" (1/1) ... [2022-07-20 03:51:02,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8973df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:02, skipping insertion in model container [2022-07-20 03:51:02,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:51:02" (1/1) ... [2022-07-20 03:51:02,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:51:02,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:51:05,015 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] [2022-07-20 03:51:05,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:51:05,193 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 03:51:05,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:51:05,779 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] [2022-07-20 03:51:05,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:51:05,834 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:51:06,225 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] [2022-07-20 03:51:06,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:51:06,392 INFO L208 MainTranslator]: Completed translation [2022-07-20 03:51:06,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06 WrapperNode [2022-07-20 03:51:06,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 03:51:06,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 03:51:06,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 03:51:06,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 03:51:06,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:06,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:06,766 INFO L137 Inliner]: procedures = 180, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 15594 [2022-07-20 03:51:06,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 03:51:06,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 03:51:06,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 03:51:06,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 03:51:06,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:06,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:06,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:06,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:07,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:07,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:07,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:07,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 03:51:07,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 03:51:07,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 03:51:07,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 03:51:07,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (1/1) ... [2022-07-20 03:51:07,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:51:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 03:51:07,469 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) [2022-07-20 03:51:07,493 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 [2022-07-20 03:51:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-20 03:51:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-20 03:51:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-20 03:51:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-20 03:51:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 03:51:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 03:51:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 03:51:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-20 03:51:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-20 03:51:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-20 03:51:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-20 03:51:07,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 03:51:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 03:51:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 03:51:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-20 03:51:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-20 03:51:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-20 03:51:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-20 03:51:07,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-20 03:51:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-20 03:51:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-20 03:51:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-20 03:51:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 03:51:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 03:51:07,520 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-20 03:51:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-20 03:51:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 03:51:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 03:51:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-20 03:51:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-20 03:51:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-20 03:51:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-20 03:51:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 03:51:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 03:51:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-20 03:51:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-20 03:51:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-20 03:51:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-20 03:51:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 03:51:07,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 03:51:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 03:51:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-20 03:51:07,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-20 03:51:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-20 03:51:07,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-20 03:51:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 03:51:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 03:51:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-20 03:51:07,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-20 03:51:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-20 03:51:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-20 03:51:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 03:51:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 03:51:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 03:51:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 03:51:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-20 03:51:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-20 03:51:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-20 03:51:07,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-20 03:51:07,527 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 03:51:07,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 03:51:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-20 03:51:07,528 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-20 03:51:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 03:51:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 03:51:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 03:51:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-20 03:51:07,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-20 03:51:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-20 03:51:07,529 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-20 03:51:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-20 03:51:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-20 03:51:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 03:51:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-20 03:51:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-20 03:51:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-20 03:51:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-20 03:51:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 03:51:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 03:51:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-20 03:51:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-20 03:51:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-20 03:51:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-20 03:51:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-20 03:51:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-20 03:51:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-20 03:51:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-20 03:51:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-20 03:51:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-20 03:51:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 03:51:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 03:51:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 03:51:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 03:51:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-20 03:51:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-20 03:51:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 03:51:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-20 03:51:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-20 03:51:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-20 03:51:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-20 03:51:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-20 03:51:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-20 03:51:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-20 03:51:07,537 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-20 03:51:07,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 03:51:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-20 03:51:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-20 03:51:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-20 03:51:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-20 03:51:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-20 03:51:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-20 03:51:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 03:51:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 03:51:07,649 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-20 03:51:07,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-20 03:51:08,809 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 03:51:08,811 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 03:51:54,063 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 03:51:54,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 03:51:54,109 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 03:51:54,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:54 BoogieIcfgContainer [2022-07-20 03:51:54,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 03:51:54,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 03:51:54,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 03:51:54,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 03:51:54,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:51:02" (1/3) ... [2022-07-20 03:51:54,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c3a538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:54, skipping insertion in model container [2022-07-20 03:51:54,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:51:06" (2/3) ... [2022-07-20 03:51:54,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c3a538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:51:54, skipping insertion in model container [2022-07-20 03:51:54,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:51:54" (3/3) ... [2022-07-20 03:51:54,126 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 [2022-07-20 03:51:54,140 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 03:51:54,140 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 03:51:54,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 03:51:54,301 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@ce261ce, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2aa4ef28 [2022-07-20 03:51:54,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 03:51:54,323 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) [2022-07-20 03:51:54,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-20 03:51:54,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:51:54,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:51:54,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:51:54,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 715822242, now seen corresponding path program 1 times [2022-07-20 03:51:54,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:54,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940078150] [2022-07-20 03:51:54,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:51:54,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:54,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:54,363 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) [2022-07-20 03:51:54,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 03:52:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:02,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:52:02,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 03:52:02,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:02,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:02,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940078150] [2022-07-20 03:52:02,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940078150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:02,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:02,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:52:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911478430] [2022-07-20 03:52:02,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:02,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:52:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:02,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:52:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:52:02,599 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) [2022-07-20 03:52:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:03,668 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2022-07-20 03:52:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:52:03,670 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 [2022-07-20 03:52:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:03,745 INFO L225 Difference]: With dead ends: 10704 [2022-07-20 03:52:03,746 INFO L226 Difference]: Without dead ends: 5381 [2022-07-20 03:52:03,817 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 [2022-07-20 03:52:03,821 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 8384 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:52:03,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8384 Valid, 9009 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 03:52:03,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2022-07-20 03:52:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2022-07-20 03:52:04,909 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) [2022-07-20 03:52:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2022-07-20 03:52:04,980 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2022-07-20 03:52:04,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:52:04,981 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2022-07-20 03:52:04,982 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) [2022-07-20 03:52:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2022-07-20 03:52:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-20 03:52:04,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:52:04,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:52:05,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 03:52:05,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:52:05,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:52:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:52:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 713153294, now seen corresponding path program 1 times [2022-07-20 03:52:05,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:52:05,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673081158] [2022-07-20 03:52:05,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:52:05,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:52:05,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:52:05,211 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) [2022-07-20 03:52:05,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 03:52:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:12,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:52:12,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 03:52:13,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:13,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:13,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673081158] [2022-07-20 03:52:13,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673081158] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:13,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:13,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:52:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040211438] [2022-07-20 03:52:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:13,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:52:13,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:52:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:52:13,026 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) [2022-07-20 03:52:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:13,645 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2022-07-20 03:52:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:52:13,646 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 [2022-07-20 03:52:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:13,690 INFO L225 Difference]: With dead ends: 5381 [2022-07-20 03:52:13,691 INFO L226 Difference]: Without dead ends: 5378 [2022-07-20 03:52:13,695 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 [2022-07-20 03:52:13,696 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 03:52:13,697 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] [2022-07-20 03:52:13,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2022-07-20 03:52:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2022-07-20 03:52:14,445 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) [2022-07-20 03:52:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2022-07-20 03:52:14,490 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2022-07-20 03:52:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:52:14,491 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2022-07-20 03:52:14,494 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) [2022-07-20 03:52:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2022-07-20 03:52:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-20 03:52:14,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:52:14,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:52:14,717 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2022-07-20 03:52:14,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 03:52:14,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:52:14,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:52:14,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:52:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash 630420773, now seen corresponding path program 1 times [2022-07-20 03:52:14,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:52:14,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328526513] [2022-07-20 03:52:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:52:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:52:14,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:52:14,750 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) [2022-07-20 03:52:14,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 03:52:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:22,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 4711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:52:22,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:22,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 03:52:22,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:22,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:22,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328526513] [2022-07-20 03:52:22,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328526513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:22,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:22,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:52:22,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514757780] [2022-07-20 03:52:22,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:22,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:52:22,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:22,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:52:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:52:22,627 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) [2022-07-20 03:52:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:23,066 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2022-07-20 03:52:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:52:23,066 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 [2022-07-20 03:52:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:23,119 INFO L225 Difference]: With dead ends: 5380 [2022-07-20 03:52:23,120 INFO L226 Difference]: Without dead ends: 5377 [2022-07-20 03:52:23,130 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 [2022-07-20 03:52:23,133 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 [2022-07-20 03:52:23,134 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] [2022-07-20 03:52:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2022-07-20 03:52:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2022-07-20 03:52:23,860 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) [2022-07-20 03:52:23,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2022-07-20 03:52:23,903 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2022-07-20 03:52:23,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:52:23,903 INFO L495 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2022-07-20 03:52:23,904 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) [2022-07-20 03:52:23,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2022-07-20 03:52:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-20 03:52:23,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:52:23,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:52:24,121 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-07-20 03:52:24,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 03:52:24,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:52:24,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:52:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:52:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282511, now seen corresponding path program 1 times [2022-07-20 03:52:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:52:24,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636471897] [2022-07-20 03:52:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:52:24,140 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:52:24,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:52:24,142 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) [2022-07-20 03:52:24,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 03:52:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:31,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 4712 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:52:31,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 03:52:31,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:31,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:31,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636471897] [2022-07-20 03:52:31,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636471897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:31,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:31,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:52:31,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59304190] [2022-07-20 03:52:31,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:31,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:52:31,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:52:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:52:31,603 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) [2022-07-20 03:52:32,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:32,496 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2022-07-20 03:52:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:52:32,496 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 [2022-07-20 03:52:32,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:32,589 INFO L225 Difference]: With dead ends: 16109 [2022-07-20 03:52:32,589 INFO L226 Difference]: Without dead ends: 10731 [2022-07-20 03:52:32,637 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 [2022-07-20 03:52:32,640 INFO L413 NwaCegarLoop]: 10042 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, 18705 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:52:32,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8663 Valid, 18705 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 03:52:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-07-20 03:52:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2022-07-20 03:52:33,974 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) [2022-07-20 03:52:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2022-07-20 03:52:34,077 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2022-07-20 03:52:34,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:52:34,077 INFO L495 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2022-07-20 03:52:34,077 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) [2022-07-20 03:52:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2022-07-20 03:52:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-20 03:52:34,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:52:34,094 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] [2022-07-20 03:52:34,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 03:52:34,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:52:34,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:52:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:52:34,316 INFO L85 PathProgramCache]: Analyzing trace with hash -874384355, now seen corresponding path program 1 times [2022-07-20 03:52:34,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:52:34,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232319253] [2022-07-20 03:52:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:52:34,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:52:34,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:52:34,325 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) [2022-07-20 03:52:34,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 03:52:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:42,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 5199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 03:52:42,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 03:52:42,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:42,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:42,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232319253] [2022-07-20 03:52:42,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232319253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:42,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:42,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:52:42,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448072813] [2022-07-20 03:52:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:42,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:52:42,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:52:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:52:42,663 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) [2022-07-20 03:52:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:43,619 INFO L93 Difference]: Finished difference Result 21554 states and 35306 transitions. [2022-07-20 03:52:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:52:43,620 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 [2022-07-20 03:52:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:43,713 INFO L225 Difference]: With dead ends: 21554 [2022-07-20 03:52:43,714 INFO L226 Difference]: Without dead ends: 10830 [2022-07-20 03:52:43,941 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 [2022-07-20 03:52:43,942 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 [2022-07-20 03:52:43,943 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] [2022-07-20 03:52:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10830 states. [2022-07-20 03:52:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10830 to 10828. [2022-07-20 03:52:45,169 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) [2022-07-20 03:52:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 17687 transitions. [2022-07-20 03:52:45,250 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 17687 transitions. Word has length 69 [2022-07-20 03:52:45,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:52:45,250 INFO L495 AbstractCegarLoop]: Abstraction has 10828 states and 17687 transitions. [2022-07-20 03:52:45,250 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) [2022-07-20 03:52:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 17687 transitions. [2022-07-20 03:52:45,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-20 03:52:45,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:52:45,259 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] [2022-07-20 03:52:45,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 03:52:45,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:52:45,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:52:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:52:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 810051597, now seen corresponding path program 1 times [2022-07-20 03:52:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:52:45,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276655033] [2022-07-20 03:52:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:52:45,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:52:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:52:45,480 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) [2022-07-20 03:52:45,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 03:52:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:52:55,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 5229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 03:52:55,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:52:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 03:52:55,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:52:55,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:52:55,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276655033] [2022-07-20 03:52:55,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276655033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:52:55,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:52:55,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:52:55,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226882413] [2022-07-20 03:52:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:52:55,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:52:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:52:55,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:52:55,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:52:55,280 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) [2022-07-20 03:52:56,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:52:58,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:52:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:52:59,174 INFO L93 Difference]: Finished difference Result 21657 states and 37207 transitions. [2022-07-20 03:52:59,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:52:59,176 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 [2022-07-20 03:52:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:52:59,256 INFO L225 Difference]: With dead ends: 21657 [2022-07-20 03:52:59,257 INFO L226 Difference]: Without dead ends: 10832 [2022-07-20 03:52:59,393 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 [2022-07-20 03:52:59,395 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 0 mSDsluCounter, 8637 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-20 03:52:59,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17278 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-20 03:52:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-07-20 03:53:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10832. [2022-07-20 03:53:00,765 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) [2022-07-20 03:53:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10832 states to 10832 states and 17691 transitions. [2022-07-20 03:53:00,869 INFO L78 Accepts]: Start accepts. Automaton has 10832 states and 17691 transitions. Word has length 78 [2022-07-20 03:53:00,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:53:00,871 INFO L495 AbstractCegarLoop]: Abstraction has 10832 states and 17691 transitions. [2022-07-20 03:53:00,872 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) [2022-07-20 03:53:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10832 states and 17691 transitions. [2022-07-20 03:53:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-20 03:53:00,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:53:00,879 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] [2022-07-20 03:53:01,099 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-20 03:53:01,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 03:53:01,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:53:01,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:53:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:53:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2145203385, now seen corresponding path program 1 times [2022-07-20 03:53:01,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:53:01,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37395543] [2022-07-20 03:53:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:53:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:53:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:53:01,112 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) [2022-07-20 03:53:01,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 03:53:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:53:11,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 5329 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 03:53:11,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:53:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-20 03:53:11,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:53:11,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:53:11,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37395543] [2022-07-20 03:53:11,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37395543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:53:11,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:53:11,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:53:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116617465] [2022-07-20 03:53:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:53:11,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:53:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:53:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:53:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:53:11,770 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) [2022-07-20 03:53:13,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:53:15,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:53:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:53:16,324 INFO L93 Difference]: Finished difference Result 21665 states and 37215 transitions. [2022-07-20 03:53:16,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:53:16,325 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 [2022-07-20 03:53:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:53:16,431 INFO L225 Difference]: With dead ends: 21665 [2022-07-20 03:53:16,432 INFO L226 Difference]: Without dead ends: 10836 [2022-07-20 03:53:16,568 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 [2022-07-20 03:53:16,569 INFO L413 NwaCegarLoop]: 8638 mSDtfsCounter, 37 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 17273 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:53:16,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 17273 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2022-07-20 03:53:16,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-07-20 03:53:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10836. [2022-07-20 03:53:17,953 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) [2022-07-20 03:53:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10836 states to 10836 states and 17695 transitions. [2022-07-20 03:53:18,050 INFO L78 Accepts]: Start accepts. Automaton has 10836 states and 17695 transitions. Word has length 79 [2022-07-20 03:53:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:53:18,051 INFO L495 AbstractCegarLoop]: Abstraction has 10836 states and 17695 transitions. [2022-07-20 03:53:18,052 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) [2022-07-20 03:53:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10836 states and 17695 transitions. [2022-07-20 03:53:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-20 03:53:18,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:53:18,059 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] [2022-07-20 03:53:18,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 03:53:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:53:18,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:53:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:53:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1158803849, now seen corresponding path program 1 times [2022-07-20 03:53:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:53:18,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938966148] [2022-07-20 03:53:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:53:18,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:53:18,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:53:18,288 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) [2022-07-20 03:53:18,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 03:53:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:53:29,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 5339 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 03:53:29,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:53:29,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-20 03:53:29,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:53:29,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:53:29,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938966148] [2022-07-20 03:53:29,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938966148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:53:29,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:53:29,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 03:53:29,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109010557] [2022-07-20 03:53:29,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:53:29,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 03:53:29,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:53:29,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 03:53:29,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 03:53:29,213 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) [2022-07-20 03:53:31,243 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 [] [2022-07-20 03:53:36,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:53:36,518 INFO L93 Difference]: Finished difference Result 21711 states and 37307 transitions. [2022-07-20 03:53:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:53:36,519 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 [2022-07-20 03:53:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:53:36,646 INFO L225 Difference]: With dead ends: 21711 [2022-07-20 03:53:36,646 INFO L226 Difference]: Without dead ends: 10878 [2022-07-20 03:53:36,760 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 [2022-07-20 03:53:36,761 INFO L413 NwaCegarLoop]: 8642 mSDtfsCounter, 11 mSDsluCounter, 33760 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42402 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-20 03:53:36,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42402 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-20 03:53:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2022-07-20 03:53:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 10852. [2022-07-20 03:53:39,534 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) [2022-07-20 03:53:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 19282 transitions. [2022-07-20 03:53:39,633 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 19282 transitions. Word has length 80 [2022-07-20 03:53:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:53:39,633 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 19282 transitions. [2022-07-20 03:53:39,633 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) [2022-07-20 03:53:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 19282 transitions. [2022-07-20 03:53:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-20 03:53:39,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:53:39,642 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] [2022-07-20 03:53:39,852 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-20 03:53:39,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:53:39,852 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:53:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:53:39,853 INFO L85 PathProgramCache]: Analyzing trace with hash 705917835, now seen corresponding path program 1 times [2022-07-20 03:53:39,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:53:39,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490638076] [2022-07-20 03:53:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:53:39,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:53:39,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:53:39,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 03:53:39,860 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) [2022-07-20 03:53:39,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 03:53:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:53:50,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 5342 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 03:53:50,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:53:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-20 03:53:50,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:53:50,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:53:50,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490638076] [2022-07-20 03:53:50,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490638076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:53:50,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:53:50,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 03:53:50,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571091576] [2022-07-20 03:53:50,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:53:50,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 03:53:50,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:53:50,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 03:53:50,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-20 03:53:50,376 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) [2022-07-20 03:53:52,403 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 [] [2022-07-20 03:53:57,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:53:57,219 INFO L93 Difference]: Finished difference Result 21735 states and 38902 transitions. [2022-07-20 03:53:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:53:57,221 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 [2022-07-20 03:53:57,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:53:57,327 INFO L225 Difference]: With dead ends: 21735 [2022-07-20 03:53:57,328 INFO L226 Difference]: Without dead ends: 10886 [2022-07-20 03:53:57,435 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 [2022-07-20 03:53:57,437 INFO L413 NwaCegarLoop]: 8653 mSDtfsCounter, 10 mSDsluCounter, 33799 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42452 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:53:57,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42452 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-20 03:53:57,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-07-20 03:54:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 10856. [2022-07-20 03:54:00,066 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) [2022-07-20 03:54:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10856 states to 10856 states and 19286 transitions. [2022-07-20 03:54:00,169 INFO L78 Accepts]: Start accepts. Automaton has 10856 states and 19286 transitions. Word has length 80 [2022-07-20 03:54:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:54:00,170 INFO L495 AbstractCegarLoop]: Abstraction has 10856 states and 19286 transitions. [2022-07-20 03:54:00,170 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) [2022-07-20 03:54:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 10856 states and 19286 transitions. [2022-07-20 03:54:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-20 03:54:00,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:54:00,176 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] [2022-07-20 03:54:00,391 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-07-20 03:54:00,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 03:54:00,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:54:00,416 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:54:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:54:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1923976951, now seen corresponding path program 1 times [2022-07-20 03:54:00,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:54:00,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754836961] [2022-07-20 03:54:00,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:54:00,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:54:00,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:54:00,429 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) [2022-07-20 03:54:00,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 03:54:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:54:08,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 5318 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 03:54:08,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:54:08,975 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-20 03:54:08,976 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 [2022-07-20 03:54:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-20 03:54:09,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:54:09,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:54:09,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754836961] [2022-07-20 03:54:09,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754836961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:54:09,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:54:09,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:54:09,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879621534] [2022-07-20 03:54:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:54:09,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:54:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:54:09,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:54:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:54:09,018 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) [2022-07-20 03:54:11,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:14,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:16,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:18,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:28,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:33,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:54:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:54:37,683 INFO L93 Difference]: Finished difference Result 21880 states and 38872 transitions. [2022-07-20 03:54:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:54:37,684 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 [2022-07-20 03:54:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:54:37,771 INFO L225 Difference]: With dead ends: 21880 [2022-07-20 03:54:37,771 INFO L226 Difference]: Without dead ends: 11027 [2022-07-20 03:54:37,852 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 [2022-07-20 03:54:37,853 INFO L413 NwaCegarLoop]: 8666 mSDtfsCounter, 199 mSDsluCounter, 15876 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s 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, 27.9s IncrementalHoareTripleChecker+Time [2022-07-20 03:54:37,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 24542 Invalid, 1516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1507 Invalid, 4 Unknown, 0 Unchecked, 27.9s Time] [2022-07-20 03:54:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11027 states. [2022-07-20 03:54:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11027 to 10974. [2022-07-20 03:54:40,329 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) [2022-07-20 03:54:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 19463 transitions. [2022-07-20 03:54:40,420 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 19463 transitions. Word has length 76 [2022-07-20 03:54:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:54:40,421 INFO L495 AbstractCegarLoop]: Abstraction has 10974 states and 19463 transitions. [2022-07-20 03:54:40,421 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) [2022-07-20 03:54:40,421 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 19463 transitions. [2022-07-20 03:54:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-20 03:54:40,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:54:40,429 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] [2022-07-20 03:54:40,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 03:54:40,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:54:40,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:54:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:54:40,652 INFO L85 PathProgramCache]: Analyzing trace with hash -699764635, now seen corresponding path program 1 times [2022-07-20 03:54:40,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:54:40,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607677155] [2022-07-20 03:54:40,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:54:40,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:54:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:54:40,658 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) [2022-07-20 03:54:40,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process