./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 6c24879c 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-?-6c24879 [2022-07-12 16:48:33,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:48:33,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:48:33,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:48:33,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:48:33,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:48:33,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:48:33,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:48:33,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:48:33,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:48:33,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:48:33,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:48:33,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:48:33,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:48:33,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:48:33,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:48:33,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:48:33,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:48:33,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:48:33,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:48:33,576 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:48:33,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:48:33,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:48:33,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:48:33,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:48:33,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:48:33,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:48:33,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:48:33,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:48:33,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:48:33,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:48:33,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:48:33,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:48:33,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:48:33,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:48:33,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:48:33,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:48:33,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:48:33,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:48:33,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:48:33,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:48:33,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:48:33,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:48:33,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:48:33,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:48:33,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:48:33,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:48:33,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:48:33,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:48:33,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:48:33,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:48:33,617 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:48:33,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:48:33,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:48:33,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:48:33,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:48:33,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:48:33,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:48:33,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:48:33,620 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:48:33,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:48:33,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:48:33,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-12 16:48:33,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:48:33,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:48:33,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:48:33,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:48:33,807 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:48:33,808 INFO L432 ainManager$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 [2022-07-12 16:48:33,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e387fa5/5e4fd1c175174682bae7d942edb19ddb/FLAG603b19b48 [2022-07-12 16:48:34,481 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:48:34,481 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 [2022-07-12 16:48:34,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e387fa5/5e4fd1c175174682bae7d942edb19ddb/FLAG603b19b48 [2022-07-12 16:48:34,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e387fa5/5e4fd1c175174682bae7d942edb19ddb [2022-07-12 16:48:34,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:48:34,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:48:34,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:48:34,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:48:34,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:48:34,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:48:34" (1/1) ... [2022-07-12 16:48:34,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42663bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:34, skipping insertion in model container [2022-07-12 16:48:34,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:48:34" (1/1) ... [2022-07-12 16:48:34,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:48:34,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:48:36,226 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] [2022-07-12 16:48:36,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:48:36,321 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:48:36,488 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) [2022-07-12 16:48:36,495 INFO L158 Benchmark]: Toolchain (without parser) took 1816.95ms. Allocated memory was 148.9MB in the beginning and 216.0MB in the end (delta: 67.1MB). Free memory was 100.9MB in the beginning and 132.5MB in the end (delta: -31.5MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2022-07-12 16:48:36,496 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:48:36,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1814.27ms. Allocated memory was 148.9MB in the beginning and 216.0MB in the end (delta: 67.1MB). Free memory was 100.9MB in the beginning and 132.5MB in the end (delta: -31.5MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2022-07-12 16:48:36,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1814.27ms. Allocated memory was 148.9MB in the beginning and 216.0MB in the end (delta: 67.1MB). Free memory was 100.9MB in the beginning and 132.5MB in the end (delta: -31.5MB). Peak memory consumption was 101.5MB. 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-?-6c24879 [2022-07-12 16:48:38,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:48:38,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:48:38,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:48:38,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:48:38,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:48:38,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:48:38,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:48:38,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:48:38,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:48:38,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:48:38,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:48:38,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:48:38,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:48:38,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:48:38,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:48:38,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:48:38,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:48:38,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:48:38,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:48:38,189 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:48:38,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:48:38,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:48:38,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:48:38,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:48:38,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:48:38,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:48:38,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:48:38,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:48:38,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:48:38,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:48:38,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:48:38,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:48:38,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:48:38,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:48:38,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:48:38,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:48:38,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:48:38,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:48:38,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:48:38,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:48:38,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:48:38,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:48:38,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:48:38,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:48:38,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:48:38,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:48:38,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:48:38,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:48:38,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:48:38,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:48:38,235 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:48:38,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:48:38,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:48:38,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:48:38,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:48:38,243 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:48:38,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:48:38,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:48:38,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:48:38,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-12 16:48:38,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:48:38,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:48:38,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:48:38,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:48:38,518 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:48:38,520 INFO L432 ainManager$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 [2022-07-12 16:48:38,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d066ce706/3168a8bfd2e7413094df86790596dbd6/FLAG511f01c58 [2022-07-12 16:48:39,255 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:48:39,255 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 [2022-07-12 16:48:39,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d066ce706/3168a8bfd2e7413094df86790596dbd6/FLAG511f01c58 [2022-07-12 16:48:39,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d066ce706/3168a8bfd2e7413094df86790596dbd6 [2022-07-12 16:48:39,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:48:39,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:48:39,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:48:39,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:48:39,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:48:39,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:48:39" (1/1) ... [2022-07-12 16:48:39,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fff3eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:39, skipping insertion in model container [2022-07-12 16:48:39,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:48:39" (1/1) ... [2022-07-12 16:48:39,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:48:39,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:48:40,747 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] [2022-07-12 16:48:40,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:48:40,846 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:48:40,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:48:41,302 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] [2022-07-12 16:48:41,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:48:41,344 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:48:41,672 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] [2022-07-12 16:48:41,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:48:41,745 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:48:41,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41 WrapperNode [2022-07-12 16:48:41,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:48:41,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:48:41,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:48:41,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:48:41,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:41,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,088 INFO L137 Inliner]: procedures = 180, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 15594 [2022-07-12 16:48:42,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:48:42,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:48:42,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:48:42,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:48:42,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:48:42,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:48:42,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:48:42,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:48:42,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (1/1) ... [2022-07-12 16:48:42,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:48:42,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:48:42,642 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) [2022-07-12 16:48:42,649 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 [2022-07-12 16:48:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-12 16:48:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-12 16:48:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-12 16:48:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-12 16:48:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:48:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 16:48:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 16:48:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-12 16:48:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-12 16:48:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-12 16:48:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-12 16:48:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-12 16:48:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-12 16:48:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-12 16:48:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-12 16:48:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-12 16:48:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-12 16:48:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:48:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:48:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-12 16:48:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-12 16:48:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:48:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:48:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-12 16:48:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-12 16:48:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-12 16:48:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-12 16:48:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 16:48:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 16:48:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-12 16:48:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-12 16:48:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-12 16:48:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-12 16:48:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 16:48:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 16:48:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:48:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-12 16:48:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-12 16:48:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-12 16:48:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-12 16:48:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:48:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:48:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-12 16:48:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-12 16:48:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-12 16:48:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-12 16:48:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 16:48:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 16:48:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:48:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:48:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-12 16:48:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-12 16:48:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-12 16:48:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-12 16:48:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 16:48:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 16:48:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-12 16:48:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-12 16:48:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:48:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:48:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:48:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-12 16:48:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-12 16:48:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-12 16:48:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-12 16:48:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-12 16:48:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-12 16:48:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:48:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-12 16:48:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-12 16:48:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-12 16:48:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-12 16:48:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:48:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:48:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-12 16:48:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-12 16:48:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-12 16:48:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-12 16:48:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-12 16:48:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-12 16:48:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-12 16:48:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-12 16:48:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-12 16:48:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-12 16:48:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:48:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:48:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:48:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:48:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:48:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-12 16:48:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-12 16:48:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-12 16:48:42,689 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-12 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-12 16:48:42,689 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-12 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-12 16:48:42,689 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-12 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-12 16:48:42,690 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-12 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-12 16:48:42,690 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-12 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:48:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-12 16:48:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-12 16:48:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-12 16:48:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-12 16:48:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-12 16:48:42,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-12 16:48:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:48:42,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:48:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-12 16:48:42,695 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-12 16:48:43,694 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:48:43,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:49:22,012 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:49:22,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:49:22,047 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 16:49:22,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:49:22 BoogieIcfgContainer [2022-07-12 16:49:22,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:49:22,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:49:22,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:49:22,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:49:22,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:48:39" (1/3) ... [2022-07-12 16:49:22,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d62cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:49:22, skipping insertion in model container [2022-07-12 16:49:22,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:48:41" (2/3) ... [2022-07-12 16:49:22,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d62cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:49:22, skipping insertion in model container [2022-07-12 16:49:22,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:49:22" (3/3) ... [2022-07-12 16:49:22,060 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 [2022-07-12 16:49:22,069 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:49:22,070 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 16:49:22,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:49:22,180 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@7fa67017, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38a13415 [2022-07-12 16:49:22,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 16:49:22,195 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) [2022-07-12 16:49:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 16:49:22,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:49:22,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:49:22,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:49:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:49:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash 715822242, now seen corresponding path program 1 times [2022-07-12 16:49:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:49:22,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756177735] [2022-07-12 16:49:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:49:22,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:49:22,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:49:22,237 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) [2022-07-12 16:49:22,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:49:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:49:29,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:49:29,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:49:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 16:49:29,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:49:29,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:49:29,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756177735] [2022-07-12 16:49:29,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756177735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:49:29,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:49:29,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:49:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975827048] [2022-07-12 16:49:29,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:49:29,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:49:29,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:49:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:49:29,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:49:29,661 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) [2022-07-12 16:49:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:49:30,629 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2022-07-12 16:49:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:49:30,631 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 [2022-07-12 16:49:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:49:30,677 INFO L225 Difference]: With dead ends: 10704 [2022-07-12 16:49:30,678 INFO L226 Difference]: Without dead ends: 5381 [2022-07-12 16:49:30,722 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 [2022-07-12 16:49:30,725 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 8384 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8384 SdHoareTripleChecker+Valid, 9009 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:49:30,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8384 Valid, 9009 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:49:30,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2022-07-12 16:49:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2022-07-12 16:49:31,510 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) [2022-07-12 16:49:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2022-07-12 16:49:31,558 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2022-07-12 16:49:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:49:31,558 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2022-07-12 16:49:31,559 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) [2022-07-12 16:49:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2022-07-12 16:49:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-12 16:49:31,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:49:31,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:49:31,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 16:49:31,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:49:31,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:49:31,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:49:31,788 INFO L85 PathProgramCache]: Analyzing trace with hash 713153294, now seen corresponding path program 1 times [2022-07-12 16:49:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:49:31,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575284130] [2022-07-12 16:49:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:49:31,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:49:31,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:49:31,795 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) [2022-07-12 16:49:31,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:49:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:49:38,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:49:38,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:49:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 16:49:38,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:49:38,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:49:38,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575284130] [2022-07-12 16:49:38,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575284130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:49:38,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:49:38,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:49:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404740614] [2022-07-12 16:49:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:49:38,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:49:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:49:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:49:38,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:49:38,804 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) [2022-07-12 16:49:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:49:39,246 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2022-07-12 16:49:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:49:39,246 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 [2022-07-12 16:49:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:49:39,279 INFO L225 Difference]: With dead ends: 5381 [2022-07-12 16:49:39,280 INFO L226 Difference]: Without dead ends: 5378 [2022-07-12 16:49:39,283 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 [2022-07-12 16:49:39,284 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8638 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:49:39,285 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] [2022-07-12 16:49:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2022-07-12 16:49:39,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2022-07-12 16:49:39,963 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) [2022-07-12 16:49:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2022-07-12 16:49:39,993 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2022-07-12 16:49:39,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:49:39,997 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2022-07-12 16:49:39,997 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) [2022-07-12 16:49:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2022-07-12 16:49:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 16:49:39,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:49:39,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:49:40,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:49:40,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:49:40,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:49:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:49:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash 630420773, now seen corresponding path program 1 times [2022-07-12 16:49:40,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:49:40,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416410690] [2022-07-12 16:49:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:49:40,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:49:40,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:49:40,238 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) [2022-07-12 16:49:40,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:49:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:49:47,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 4711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:49:47,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:49:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 16:49:47,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:49:47,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:49:47,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416410690] [2022-07-12 16:49:47,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416410690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:49:47,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:49:47,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:49:47,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375666169] [2022-07-12 16:49:47,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:49:47,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:49:47,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:49:47,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:49:47,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:49:47,172 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) [2022-07-12 16:49:47,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:49:47,566 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2022-07-12 16:49:47,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:49:47,567 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 [2022-07-12 16:49:47,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:49:47,598 INFO L225 Difference]: With dead ends: 5380 [2022-07-12 16:49:47,599 INFO L226 Difference]: Without dead ends: 5377 [2022-07-12 16:49:47,603 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 [2022-07-12 16:49:47,604 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 8635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 16:49:47,604 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] [2022-07-12 16:49:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2022-07-12 16:49:48,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2022-07-12 16:49:48,180 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) [2022-07-12 16:49:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2022-07-12 16:49:48,205 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2022-07-12 16:49:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:49:48,205 INFO L495 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2022-07-12 16:49:48,205 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) [2022-07-12 16:49:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2022-07-12 16:49:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-12 16:49:48,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:49:48,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:49:48,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 16:49:48,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:49:48,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:49:48,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:49:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282511, now seen corresponding path program 1 times [2022-07-12 16:49:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:49:48,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501955496] [2022-07-12 16:49:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:49:48,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:49:48,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:49:48,439 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) [2022-07-12 16:49:48,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:49:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:49:55,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 4712 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:49:55,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:49:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 16:49:55,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:49:55,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:49:55,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501955496] [2022-07-12 16:49:55,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501955496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:49:55,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:49:55,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:49:55,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812392438] [2022-07-12 16:49:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:49:55,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:49:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:49:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:49:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:49:55,476 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) [2022-07-12 16:49:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:49:56,051 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2022-07-12 16:49:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:49:56,051 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 [2022-07-12 16:49:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:49:56,140 INFO L225 Difference]: With dead ends: 16109 [2022-07-12 16:49:56,140 INFO L226 Difference]: Without dead ends: 10731 [2022-07-12 16:49:56,265 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 [2022-07-12 16:49:56,266 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, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:49:56,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8663 Valid, 18705 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:49:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-07-12 16:49:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2022-07-12 16:49:57,100 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) [2022-07-12 16:49:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2022-07-12 16:49:57,154 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2022-07-12 16:49:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:49:57,154 INFO L495 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2022-07-12 16:49:57,155 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) [2022-07-12 16:49:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2022-07-12 16:49:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 16:49:57,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:49:57,165 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] [2022-07-12 16:49:57,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 16:49:57,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:49:57,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:49:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:49:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash -874384355, now seen corresponding path program 1 times [2022-07-12 16:49:57,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:49:57,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985144950] [2022-07-12 16:49:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:49:57,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:49:57,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:49:57,394 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) [2022-07-12 16:49:57,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:50:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:50:04,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 5199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 16:50:04,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:50:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 16:50:04,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:50:04,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:50:04,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985144950] [2022-07-12 16:50:04,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985144950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:50:04,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:50:04,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:50:04,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526477628] [2022-07-12 16:50:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:50:04,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:50:04,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:50:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:50:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:50:04,841 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) [2022-07-12 16:50:05,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:50:05,538 INFO L93 Difference]: Finished difference Result 21554 states and 35306 transitions. [2022-07-12 16:50:05,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:50:05,539 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 [2022-07-12 16:50:05,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:50:05,601 INFO L225 Difference]: With dead ends: 21554 [2022-07-12 16:50:05,601 INFO L226 Difference]: Without dead ends: 10830 [2022-07-12 16:50:05,682 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 [2022-07-12 16:50:05,683 INFO L413 NwaCegarLoop]: 8637 mSDtfsCounter, 131 mSDsluCounter, 17223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:50:05,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 25860 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:50:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10830 states. [2022-07-12 16:50:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10830 to 10828. [2022-07-12 16:50:06,810 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) [2022-07-12 16:50:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 17687 transitions. [2022-07-12 16:50:06,868 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 17687 transitions. Word has length 69 [2022-07-12 16:50:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:50:06,869 INFO L495 AbstractCegarLoop]: Abstraction has 10828 states and 17687 transitions. [2022-07-12 16:50:06,869 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) [2022-07-12 16:50:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 17687 transitions. [2022-07-12 16:50:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 16:50:06,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:50:06,875 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] [2022-07-12 16:50:07,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 16:50:07,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:50:07,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:50:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:50:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash 810051597, now seen corresponding path program 1 times [2022-07-12 16:50:07,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:50:07,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062082377] [2022-07-12 16:50:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:50:07,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:50:07,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:50:07,116 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) [2022-07-12 16:50:07,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:50:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:50:16,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 5229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 16:50:16,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:50:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 16:50:16,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:50:16,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:50:16,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062082377] [2022-07-12 16:50:16,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062082377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:50:16,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:50:16,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:50:16,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350315279] [2022-07-12 16:50:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:50:16,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:50:16,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:50:16,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:50:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:50:16,631 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) [2022-07-12 16:50:18,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:50:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:50:19,311 INFO L93 Difference]: Finished difference Result 21657 states and 37207 transitions. [2022-07-12 16:50:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:50:19,313 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 [2022-07-12 16:50:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:50:19,375 INFO L225 Difference]: With dead ends: 21657 [2022-07-12 16:50:19,376 INFO L226 Difference]: Without dead ends: 10832 [2022-07-12 16:50:19,473 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 [2022-07-12 16:50:19,474 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 0 mSDsluCounter, 8637 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17278 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:50:19,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17278 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 16:50:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-07-12 16:50:20,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10832. [2022-07-12 16:50:20,651 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) [2022-07-12 16:50:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10832 states to 10832 states and 17691 transitions. [2022-07-12 16:50:20,713 INFO L78 Accepts]: Start accepts. Automaton has 10832 states and 17691 transitions. Word has length 78 [2022-07-12 16:50:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:50:20,715 INFO L495 AbstractCegarLoop]: Abstraction has 10832 states and 17691 transitions. [2022-07-12 16:50:20,715 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) [2022-07-12 16:50:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 10832 states and 17691 transitions. [2022-07-12 16:50:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 16:50:20,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:50:20,720 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] [2022-07-12 16:50:20,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:50:20,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:50:20,940 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:50:20,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:50:20,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2145203385, now seen corresponding path program 1 times [2022-07-12 16:50:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:50:20,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664217203] [2022-07-12 16:50:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:50:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:50:20,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:50:20,947 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) [2022-07-12 16:50:20,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:50:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:50:30,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 5331 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 16:50:30,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:50:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 16:50:30,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:50:30,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:50:30,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664217203] [2022-07-12 16:50:30,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664217203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:50:30,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:50:30,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:50:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401507961] [2022-07-12 16:50:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:50:30,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:50:30,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:50:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:50:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:50:30,916 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) [2022-07-12 16:50:32,947 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 [] [2022-07-12 16:50:35,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:50:35,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:50:35,565 INFO L93 Difference]: Finished difference Result 21665 states and 37215 transitions. [2022-07-12 16:50:35,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 16:50:35,566 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 [2022-07-12 16:50:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:50:35,635 INFO L225 Difference]: With dead ends: 21665 [2022-07-12 16:50:35,636 INFO L226 Difference]: Without dead ends: 10836 [2022-07-12 16:50:35,730 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 [2022-07-12 16:50:35,731 INFO L413 NwaCegarLoop]: 8638 mSDtfsCounter, 37 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 17273 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:50:35,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 17273 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 16:50:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-07-12 16:50:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10836. [2022-07-12 16:50:36,858 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) [2022-07-12 16:50:36,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10836 states to 10836 states and 17695 transitions. [2022-07-12 16:50:36,919 INFO L78 Accepts]: Start accepts. Automaton has 10836 states and 17695 transitions. Word has length 79 [2022-07-12 16:50:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:50:36,920 INFO L495 AbstractCegarLoop]: Abstraction has 10836 states and 17695 transitions. [2022-07-12 16:50:36,920 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) [2022-07-12 16:50:36,920 INFO L276 IsEmpty]: Start isEmpty. Operand 10836 states and 17695 transitions. [2022-07-12 16:50:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 16:50:36,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:50:36,924 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] [2022-07-12 16:50:37,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:50:37,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:50:37,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:50:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:50:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1158803849, now seen corresponding path program 1 times [2022-07-12 16:50:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:50:37,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932078103] [2022-07-12 16:50:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:50:37,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:50:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:50:37,151 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) [2022-07-12 16:50:37,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:50:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:50:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 5341 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 16:50:47,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:50:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 16:50:47,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:50:47,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:50:47,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932078103] [2022-07-12 16:50:47,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932078103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:50:47,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:50:47,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:50:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791634939] [2022-07-12 16:50:47,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:50:47,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:50:47,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:50:47,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:50:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:50:47,356 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) [2022-07-12 16:50:49,378 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 [] [2022-07-12 16:50:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:50:53,761 INFO L93 Difference]: Finished difference Result 21711 states and 37307 transitions. [2022-07-12 16:50:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:50:53,762 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 [2022-07-12 16:50:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:50:53,863 INFO L225 Difference]: With dead ends: 21711 [2022-07-12 16:50:53,863 INFO L226 Difference]: Without dead ends: 10878 [2022-07-12 16:50:53,955 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 [2022-07-12 16:50:53,956 INFO L413 NwaCegarLoop]: 8642 mSDtfsCounter, 11 mSDsluCounter, 33760 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 16:50:53,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42402 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 16:50:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2022-07-12 16:50:56,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 10852. [2022-07-12 16:50:56,388 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) [2022-07-12 16:50:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 19282 transitions. [2022-07-12 16:50:56,461 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 19282 transitions. Word has length 80 [2022-07-12 16:50:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:50:56,461 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 19282 transitions. [2022-07-12 16:50:56,462 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) [2022-07-12 16:50:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 19282 transitions. [2022-07-12 16:50:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 16:50:56,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:50:56,467 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] [2022-07-12 16:50:56,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 16:50:56,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:50:56,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:50:56,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:50:56,691 INFO L85 PathProgramCache]: Analyzing trace with hash 705917835, now seen corresponding path program 1 times [2022-07-12 16:50:56,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:50:56,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974538355] [2022-07-12 16:50:56,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:50:56,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:50:56,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:50:56,708 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) [2022-07-12 16:50:56,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 16:51:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:51:06,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 5344 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 16:51:06,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:51:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 16:51:06,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:51:06,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:51:06,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974538355] [2022-07-12 16:51:06,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974538355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:51:06,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:51:06,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:51:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404693658] [2022-07-12 16:51:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:51:06,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:51:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:51:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:51:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:51:06,646 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) [2022-07-12 16:51:08,667 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 [] [2022-07-12 16:51:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:51:12,775 INFO L93 Difference]: Finished difference Result 21735 states and 38902 transitions. [2022-07-12 16:51:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:51:12,776 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 [2022-07-12 16:51:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:51:12,867 INFO L225 Difference]: With dead ends: 21735 [2022-07-12 16:51:12,867 INFO L226 Difference]: Without dead ends: 10886 [2022-07-12 16:51:12,953 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 [2022-07-12 16:51:12,955 INFO L413 NwaCegarLoop]: 8653 mSDtfsCounter, 10 mSDsluCounter, 33799 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s 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, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:51:12,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42452 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 16:51:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-07-12 16:51:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 10856. [2022-07-12 16:51:15,296 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) [2022-07-12 16:51:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10856 states to 10856 states and 19286 transitions. [2022-07-12 16:51:15,368 INFO L78 Accepts]: Start accepts. Automaton has 10856 states and 19286 transitions. Word has length 80 [2022-07-12 16:51:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:51:15,369 INFO L495 AbstractCegarLoop]: Abstraction has 10856 states and 19286 transitions. [2022-07-12 16:51:15,370 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) [2022-07-12 16:51:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 10856 states and 19286 transitions. [2022-07-12 16:51:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 16:51:15,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:51:15,396 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] [2022-07-12 16:51:15,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 16:51:15,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:51:15,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:51:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:51:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1923976951, now seen corresponding path program 1 times [2022-07-12 16:51:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:51:15,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241999544] [2022-07-12 16:51:15,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:51:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:51:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:51:15,620 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) [2022-07-12 16:51:15,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 16:51:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:51:23,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 16:51:23,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:51:24,340 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-12 16:51:24,340 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 [2022-07-12 16:51:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 16:51:24,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:51:24,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:51:24,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241999544] [2022-07-12 16:51:24,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241999544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:51:24,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:51:24,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:51:24,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934418035] [2022-07-12 16:51:24,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:51:24,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 16:51:24,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:51:24,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 16:51:24,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 16:51:24,375 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) [2022-07-12 16:51:27,027 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 [] [2022-07-12 16:51:29,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:51:32,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:51:41,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:51:46,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:51:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:51:50,467 INFO L93 Difference]: Finished difference Result 21880 states and 38872 transitions. [2022-07-12 16:51:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:51:50,469 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 [2022-07-12 16:51:50,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:51:50,548 INFO L225 Difference]: With dead ends: 21880 [2022-07-12 16:51:50,549 INFO L226 Difference]: Without dead ends: 11027 [2022-07-12 16:51:50,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:51:50,624 INFO L413 NwaCegarLoop]: 8666 mSDtfsCounter, 199 mSDsluCounter, 15876 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 24542 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:51:50,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 24542 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1508 Invalid, 3 Unknown, 0 Unchecked, 25.4s Time] [2022-07-12 16:51:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11027 states. [2022-07-12 16:51:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11027 to 10974. [2022-07-12 16:51:52,980 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) [2022-07-12 16:51:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 19463 transitions. [2022-07-12 16:51:53,057 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 19463 transitions. Word has length 76 [2022-07-12 16:51:53,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:51:53,058 INFO L495 AbstractCegarLoop]: Abstraction has 10974 states and 19463 transitions. [2022-07-12 16:51:53,058 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) [2022-07-12 16:51:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 19463 transitions. [2022-07-12 16:51:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 16:51:53,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:51:53,065 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] [2022-07-12 16:51:53,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 16:51:53,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:51:53,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:51:53,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:51:53,280 INFO L85 PathProgramCache]: Analyzing trace with hash -699764635, now seen corresponding path program 1 times [2022-07-12 16:51:53,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:51:53,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451064188] [2022-07-12 16:51:53,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:51:53,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:51:53,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:51:53,287 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) [2022-07-12 16:51:53,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process