./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:10:20,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:10:20,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:10:20,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:10:20,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:10:20,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:10:20,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:10:20,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:10:20,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:10:20,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:10:20,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:10:20,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:10:20,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:10:20,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:10:20,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:10:20,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:10:20,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:10:20,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:10:20,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:10:20,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:10:20,500 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:10:20,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:10:20,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:10:20,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:10:20,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:10:20,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:10:20,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:10:20,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:10:20,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:10:20,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:10:20,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:10:20,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:10:20,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:10:20,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:10:20,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:10:20,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:10:20,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:10:20,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:10:20,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:10:20,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:10:20,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:10:20,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:10:20,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:10:20,548 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:10:20,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:10:20,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:10:20,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:10:20,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:10:20,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:10:20,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:10:20,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:10:20,551 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:10:20,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:10:20,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:10:20,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:10:20,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:10:20,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:10:20,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:10:20,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:10:20,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:10:20,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:10:20,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:10:20,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:10:20,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:10:20,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:10:20,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:10:20,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:10:20,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:10:20,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:10:20,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:10:20,557 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:10:20,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:10:20,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:10:20,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2022-07-12 16:10:20,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:10:20,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:10:20,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:10:20,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:10:20,800 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:10:20,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-07-12 16:10:20,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49c9c7f7/bb2efeb6d25c4d38ab216b0b35d923a7/FLAG6531e6e09 [2022-07-12 16:10:21,693 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:10:21,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-07-12 16:10:21,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49c9c7f7/bb2efeb6d25c4d38ab216b0b35d923a7/FLAG6531e6e09 [2022-07-12 16:10:21,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49c9c7f7/bb2efeb6d25c4d38ab216b0b35d923a7 [2022-07-12 16:10:21,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:10:21,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:10:21,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:10:21,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:10:21,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:10:21,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:10:21" (1/1) ... [2022-07-12 16:10:21,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cc2a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:21, skipping insertion in model container [2022-07-12 16:10:21,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:10:21" (1/1) ... [2022-07-12 16:10:21,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:10:22,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:10:25,118 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-07-12 16:10:25,142 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-07-12 16:10:25,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:10:25,208 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:10:25,466 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.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 16:10:25,475 INFO L158 Benchmark]: Toolchain (without parser) took 3638.18ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.3MB in the beginning and 110.5MB in the end (delta: -53.2MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-07-12 16:10:25,476 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory was 59.9MB in the beginning and 59.9MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:10:25,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3636.41ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.1MB in the beginning and 110.5MB in the end (delta: -53.4MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-07-12 16:10:25,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory was 59.9MB in the beginning and 59.9MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3636.41ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.1MB in the beginning and 110.5MB in the end (delta: -53.4MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:10:27,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:10:27,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:10:27,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:10:27,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:10:27,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:10:27,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:10:27,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:10:27,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:10:27,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:10:27,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:10:27,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:10:27,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:10:27,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:10:27,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:10:27,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:10:27,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:10:27,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:10:27,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:10:27,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:10:27,261 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:10:27,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:10:27,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:10:27,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:10:27,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:10:27,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:10:27,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:10:27,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:10:27,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:10:27,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:10:27,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:10:27,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:10:27,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:10:27,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:10:27,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:10:27,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:10:27,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:10:27,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:10:27,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:10:27,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:10:27,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:10:27,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:10:27,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:10:27,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:10:27,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:10:27,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:10:27,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:10:27,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:10:27,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:10:27,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:10:27,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:10:27,299 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:10:27,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:10:27,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:10:27,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:10:27,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:10:27,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:10:27,301 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:10:27,301 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:10:27,301 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:10:27,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:10:27,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:10:27,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:10:27,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:10:27,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:10:27,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:10:27,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:10:27,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:10:27,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:10:27,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:10:27,304 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:10:27,304 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:10:27,304 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:10:27,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:10:27,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:10:27,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:10:27,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2022-07-12 16:10:27,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:10:27,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:10:27,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:10:27,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:10:27,639 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:10:27,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-07-12 16:10:27,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a670404a/848d45e9687045d79a19e312b58d94ae/FLAGddbbc8bf6 [2022-07-12 16:10:28,535 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:10:28,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-07-12 16:10:28,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a670404a/848d45e9687045d79a19e312b58d94ae/FLAGddbbc8bf6 [2022-07-12 16:10:29,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a670404a/848d45e9687045d79a19e312b58d94ae [2022-07-12 16:10:29,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:10:29,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:10:29,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:10:29,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:10:29,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:10:29,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:10:29" (1/1) ... [2022-07-12 16:10:29,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389baba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:29, skipping insertion in model container [2022-07-12 16:10:29,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:10:29" (1/1) ... [2022-07-12 16:10:29,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:10:29,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:10:32,063 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-07-12 16:10:32,069 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-07-12 16:10:32,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:10:32,134 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:10:32,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:10:32,495 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-07-12 16:10:32,496 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-07-12 16:10:32,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:10:32,517 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:10:32,899 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-07-12 16:10:32,900 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-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-07-12 16:10:32,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:10:33,116 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:10:33,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33 WrapperNode [2022-07-12 16:10:33,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:10:33,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:10:33,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:10:33,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:10:33,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,424 INFO L137 Inliner]: procedures = 547, calls = 2779, calls flagged for inlining = 243, calls inlined = 223, statements flattened = 6584 [2022-07-12 16:10:33,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:10:33,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:10:33,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:10:33,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:10:33,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:10:33,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:10:33,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:10:33,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:10:33,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (1/1) ... [2022-07-12 16:10:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:10:33,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:10:33,825 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 16:10:33,849 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 16:10:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_handler_adjust [2022-07-12 16:10:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_handler_adjust [2022-07-12 16:10:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:10:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:10:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-07-12 16:10:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-07-12 16:10:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_core_destroy [2022-07-12 16:10:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_core_destroy [2022-07-12 16:10:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:10:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:10:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 16:10:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 16:10:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_watermark_intr_disable [2022-07-12 16:10:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_watermark_intr_disable [2022-07-12 16:10:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:10:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:10:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_recv_next [2022-07-12 16:10:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_recv_next [2022-07-12 16:10:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 16:10:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 16:10:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_send_next [2022-07-12 16:10:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_send_next [2022-07-12 16:10:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 16:10:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 16:10:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_ce_deinit [2022-07-12 16:10:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_ce_deinit [2022-07-12 16:10:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_start [2022-07-12 16:10:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_start [2022-07-12 16:10:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:10:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-12 16:10:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_resume [2022-07-12 16:10:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_resume [2022-07-12 16:10:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:10:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:10:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_read32 [2022-07-12 16:10:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_read32 [2022-07-12 16:10:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 16:10:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 16:10:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:10:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:10:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-07-12 16:10:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-07-12 16:10:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-07-12 16:10:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-07-12 16:10:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:10:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-12 16:10:33,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-12 16:10:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:10:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:10:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_mem [2022-07-12 16:10:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_mem [2022-07-12 16:10:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 16:10:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 16:10:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 16:10:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 16:10:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 16:10:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_base_address [2022-07-12 16:10:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_base_address [2022-07-12 16:10:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_access [2022-07-12 16:10:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_access [2022-07-12 16:10:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-12 16:10:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-12 16:10:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:10:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:10:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 16:10:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 16:10:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:10:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:10:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:10:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:10:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_84 [2022-07-12 16:10:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_84 [2022-07-12 16:10:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-07-12 16:10:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-07-12 16:10:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:10:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:10:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_86 [2022-07-12 16:10:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_86 [2022-07-12 16:10:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-07-12 16:10:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-07-12 16:10:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:10:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:10:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:10:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:10:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_wake [2022-07-12 16:10:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_wake [2022-07-12 16:10:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:10:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:10:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 16:10:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 16:10:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_copy_complete_intr_disable [2022-07-12 16:10:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_copy_complete_intr_disable [2022-07-12 16:10:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_compl [2022-07-12 16:10:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_compl [2022-07-12 16:10:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_process_ce [2022-07-12 16:10:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_process_ce [2022-07-12 16:10:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_read32 [2022-07-12 16:10:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_read32 [2022-07-12 16:10:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-12 16:10:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-12 16:10:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 16:10:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 16:10:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 16:10:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 16:10:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_wake [2022-07-12 16:10:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_wake [2022-07-12 16:10:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_cleanup_ce [2022-07-12 16:10:33,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_cleanup_ce [2022-07-12 16:10:33,882 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_disable_interrupts [2022-07-12 16:10:33,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_disable_interrupts [2022-07-12 16:10:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:10:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:10:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:10:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:10:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:10:33,887 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_sleep [2022-07-12 16:10:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_sleep [2022-07-12 16:10:33,888 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-12 16:10:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-12 16:10:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-12 16:10:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-12 16:10:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:10:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:10:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:10:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:10:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:10:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_request_early_irq [2022-07-12 16:10:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_request_early_irq [2022-07-12 16:10:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:10:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 16:10:33,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 16:10:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:10:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:10:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:10:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:10:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:10:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_write32 [2022-07-12 16:10:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_write32 [2022-07-12 16:10:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-07-12 16:10:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-07-12 16:10:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-07-12 16:10:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-07-12 16:10:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-12 16:10:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-12 16:10:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-07-12 16:10:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-07-12 16:10:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_get_free_queue_number [2022-07-12 16:10:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_get_free_queue_number [2022-07-12 16:10:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_stop [2022-07-12 16:10:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_stop [2022-07-12 16:10:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_recv_buf_enqueue [2022-07-12 16:10:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_recv_buf_enqueue [2022-07-12 16:10:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_priv [2022-07-12 16:10:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_priv [2022-07-12 16:10:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:10:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:10:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 16:10:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 16:10:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:10:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_deinit [2022-07-12 16:10:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_deinit [2022-07-12 16:10:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2022-07-12 16:10:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2022-07-12 16:10:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:10:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:10:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_rx_pipe_cleanup [2022-07-12 16:10:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_rx_pipe_cleanup [2022-07-12 16:10:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_revoke_recv_next [2022-07-12 16:10:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_revoke_recv_next [2022-07-12 16:10:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2022-07-12 16:10:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2022-07-12 16:10:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-12 16:10:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-12 16:10:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_stop_ce [2022-07-12 16:10:33,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_stop_ce [2022-07-12 16:10:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_device_reset [2022-07-12 16:10:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_device_reset [2022-07-12 16:10:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:10:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 16:10:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 16:10:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:10:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:10:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_post_rx_pipe [2022-07-12 16:10:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_post_rx_pipe [2022-07-12 16:10:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_irq [2022-07-12 16:10:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_irq [2022-07-12 16:10:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 16:10:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 16:10:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-07-12 16:10:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-07-12 16:10:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_down [2022-07-12 16:10:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_down [2022-07-12 16:10:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:10:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:10:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_service [2022-07-12 16:10:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_service [2022-07-12 16:10:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 16:10:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 16:10:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:10:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:10:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_send [2022-07-12 16:10:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_send [2022-07-12 16:10:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_suspend [2022-07-12 16:10:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_suspend [2022-07-12 16:10:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 16:10:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 16:10:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-12 16:10:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-12 16:10:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-12 16:10:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-12 16:10:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:10:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 16:10:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 16:10:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_src_ring_read_index_get [2022-07-12 16:10:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_src_ring_read_index_get [2022-07-12 16:10:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ATH10K_SKB_CB [2022-07-12 16:10:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ATH10K_SKB_CB [2022-07-12 16:10:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_early_irq [2022-07-12 16:10:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_early_irq [2022-07-12 16:10:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:10:33,907 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_sleep [2022-07-12 16:10:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_sleep [2022-07-12 16:10:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_kill_tasklet [2022-07-12 16:10:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_kill_tasklet [2022-07-12 16:10:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:10:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:10:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:10:33,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-12 16:10:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~TO~C_INT [2022-07-12 16:10:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:10:33,909 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_remove [2022-07-12 16:10:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_remove [2022-07-12 16:10:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:10:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-07-12 16:10:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-07-12 16:10:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 16:10:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 16:10:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-12 16:10:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-12 16:10:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_irq_pending [2022-07-12 16:10:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_irq_pending [2022-07-12 16:10:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-12 16:10:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-12 16:10:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:10:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:10:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 16:10:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 16:10:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 16:10:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 16:10:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 16:10:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 16:10:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 16:10:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 16:10:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-07-12 16:10:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-07-12 16:10:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_85 [2022-07-12 16:10:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_85 [2022-07-12 16:10:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_83 [2022-07-12 16:10:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_83 [2022-07-12 16:10:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_write32 [2022-07-12 16:10:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_write32 [2022-07-12 16:10:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_map_service_to_pipe [2022-07-12 16:10:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_map_service_to_pipe [2022-07-12 16:10:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_block [2022-07-12 16:10:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_block [2022-07-12 16:10:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:10:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:10:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 16:10:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:10:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2022-07-12 16:10:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:10:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:10:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:10:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:10:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 16:10:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 16:10:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_dbg_dump [2022-07-12 16:10:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_dbg_dump [2022-07-12 16:10:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-07-12 16:10:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-07-12 16:10:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_up [2022-07-12 16:10:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_up [2022-07-12 16:10:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:10:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:10:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_deinit_irq [2022-07-12 16:10:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_deinit_irq [2022-07-12 16:10:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2022-07-12 16:10:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2022-07-12 16:10:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 16:10:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 16:10:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure host_interest_item_address [2022-07-12 16:10:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure host_interest_item_address [2022-07-12 16:10:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2022-07-12 16:10:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2022-07-12 16:10:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-07-12 16:10:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-07-12 16:10:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 16:10:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 16:10:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_cancel_send_next [2022-07-12 16:10:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_cancel_send_next [2022-07-12 16:10:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:10:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:10:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_engine_int_status_clear [2022-07-12 16:10:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_engine_int_status_clear [2022-07-12 16:10:34,864 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:10:34,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:10:35,086 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:11:05,535 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:11:06,083 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:11:06,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:11:06,114 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 16:11:06,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:11:06 BoogieIcfgContainer [2022-07-12 16:11:06,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:11:06,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:11:06,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:11:06,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:11:06,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:10:29" (1/3) ... [2022-07-12 16:11:06,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abddcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:11:06, skipping insertion in model container [2022-07-12 16:11:06,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:10:33" (2/3) ... [2022-07-12 16:11:06,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abddcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:11:06, skipping insertion in model container [2022-07-12 16:11:06,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:11:06" (3/3) ... [2022-07-12 16:11:06,126 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-07-12 16:11:06,138 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:11:06,138 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 16:11:06,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:11:06,238 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@47e1bcbf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a4d4df3 [2022-07-12 16:11:06,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 16:11:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 2564 states, 1685 states have (on average 1.2783382789317508) internal successors, (2154), 1732 states have internal predecessors, (2154), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) [2022-07-12 16:11:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 16:11:06,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:06,290 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:06,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1573750035, now seen corresponding path program 1 times [2022-07-12 16:11:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:06,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560681646] [2022-07-12 16:11:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:06,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:06,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:06,315 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 16:11:06,319 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 16:11:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:08,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:08,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-07-12 16:11:08,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:08,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:08,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560681646] [2022-07-12 16:11:08,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560681646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:08,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:08,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:11:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277411078] [2022-07-12 16:11:08,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:08,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:08,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:08,472 INFO L87 Difference]: Start difference. First operand has 2564 states, 1685 states have (on average 1.2783382789317508) internal successors, (2154), 1732 states have internal predecessors, (2154), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 16:11:09,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:09,208 INFO L93 Difference]: Finished difference Result 7385 states and 10576 transitions. [2022-07-12 16:11:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:09,211 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), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 210 [2022-07-12 16:11:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:09,263 INFO L225 Difference]: With dead ends: 7385 [2022-07-12 16:11:09,264 INFO L226 Difference]: Without dead ends: 4782 [2022-07-12 16:11:09,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 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 16:11:09,294 INFO L413 NwaCegarLoop]: 4411 mSDtfsCounter, 3240 mSDsluCounter, 3523 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 7934 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:09,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3240 Valid, 7934 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:11:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2022-07-12 16:11:09,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4779. [2022-07-12 16:11:09,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4779 states, 3160 states have (on average 1.2699367088607596) internal successors, (4013), 3235 states have internal predecessors, (4013), 1345 states have call successors, (1345), 273 states have call predecessors, (1345), 273 states have return successors, (1345), 1332 states have call predecessors, (1345), 1345 states have call successors, (1345) [2022-07-12 16:11:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 6703 transitions. [2022-07-12 16:11:09,629 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 6703 transitions. Word has length 210 [2022-07-12 16:11:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:09,630 INFO L495 AbstractCegarLoop]: Abstraction has 4779 states and 6703 transitions. [2022-07-12 16:11:09,630 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), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 16:11:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 6703 transitions. [2022-07-12 16:11:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-12 16:11:09,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:09,645 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:09,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 16:11:09,863 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 16:11:09,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1308225810, now seen corresponding path program 1 times [2022-07-12 16:11:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:09,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099708988] [2022-07-12 16:11:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:09,868 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 16:11:09,870 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 16:11:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:11,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 16:11:11,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2022-07-12 16:11:11,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:11:12,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-07-12 16:11:12,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:12,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099708988] [2022-07-12 16:11:12,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099708988] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:11:12,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 16:11:12,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-12 16:11:12,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571289983] [2022-07-12 16:11:12,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 16:11:12,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 16:11:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 16:11:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 16:11:12,377 INFO L87 Difference]: Start difference. First operand 4779 states and 6703 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-12 16:11:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:17,234 INFO L93 Difference]: Finished difference Result 11571 states and 16496 transitions. [2022-07-12 16:11:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 16:11:17,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 276 [2022-07-12 16:11:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:17,283 INFO L225 Difference]: With dead ends: 11571 [2022-07-12 16:11:17,283 INFO L226 Difference]: Without dead ends: 6827 [2022-07-12 16:11:17,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-12 16:11:17,312 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 2481 mSDsluCounter, 30414 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2651 SdHoareTripleChecker+Valid, 35129 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:17,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2651 Valid, 35129 Invalid, 1581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [681 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 16:11:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2022-07-12 16:11:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 4782. [2022-07-12 16:11:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 3163 states have (on average 1.2696806828959848) internal successors, (4016), 3238 states have internal predecessors, (4016), 1345 states have call successors, (1345), 273 states have call predecessors, (1345), 273 states have return successors, (1345), 1332 states have call predecessors, (1345), 1345 states have call successors, (1345) [2022-07-12 16:11:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 6706 transitions. [2022-07-12 16:11:17,552 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 6706 transitions. Word has length 276 [2022-07-12 16:11:17,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:17,554 INFO L495 AbstractCegarLoop]: Abstraction has 4782 states and 6706 transitions. [2022-07-12 16:11:17,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-12 16:11:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 6706 transitions. [2022-07-12 16:11:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-12 16:11:17,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:17,566 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:17,615 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 16:11:17,787 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 16:11:17,788 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:17,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:17,788 INFO L85 PathProgramCache]: Analyzing trace with hash 890829204, now seen corresponding path program 1 times [2022-07-12 16:11:17,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:17,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384658897] [2022-07-12 16:11:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:17,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:17,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:17,791 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 16:11:17,792 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 16:11:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:19,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:19,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-07-12 16:11:19,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:19,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384658897] [2022-07-12 16:11:19,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384658897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:19,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:19,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:11:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448795686] [2022-07-12 16:11:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:19,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:19,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:19,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:19,736 INFO L87 Difference]: Start difference. First operand 4782 states and 6706 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:11:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:20,393 INFO L93 Difference]: Finished difference Result 11809 states and 16565 transitions. [2022-07-12 16:11:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 276 [2022-07-12 16:11:20,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:20,442 INFO L225 Difference]: With dead ends: 11809 [2022-07-12 16:11:20,443 INFO L226 Difference]: Without dead ends: 7062 [2022-07-12 16:11:20,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 16:11:20,472 INFO L413 NwaCegarLoop]: 6681 mSDtfsCounter, 3148 mSDsluCounter, 3450 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 10131 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:20,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3148 Valid, 10131 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:11:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2022-07-12 16:11:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7059. [2022-07-12 16:11:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 4666 states have (on average 1.2691813116159452) internal successors, (5922), 4776 states have internal predecessors, (5922), 1985 states have call successors, (1985), 407 states have call predecessors, (1985), 407 states have return successors, (1985), 1965 states have call predecessors, (1985), 1985 states have call successors, (1985) [2022-07-12 16:11:20,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 9892 transitions. [2022-07-12 16:11:20,741 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 9892 transitions. Word has length 276 [2022-07-12 16:11:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:20,743 INFO L495 AbstractCegarLoop]: Abstraction has 7059 states and 9892 transitions. [2022-07-12 16:11:20,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:11:20,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 9892 transitions. [2022-07-12 16:11:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-12 16:11:20,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:20,755 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:20,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:11:20,975 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 16:11:20,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:20,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2037188258, now seen corresponding path program 1 times [2022-07-12 16:11:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:20,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428192390] [2022-07-12 16:11:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:20,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:20,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:20,981 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 16:11:20,995 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 16:11:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:22,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:22,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked. [2022-07-12 16:11:23,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:23,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:23,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428192390] [2022-07-12 16:11:23,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428192390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:23,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:23,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:11:23,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288498492] [2022-07-12 16:11:23,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:23,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:23,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:23,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:23,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:23,129 INFO L87 Difference]: Start difference. First operand 7059 states and 9892 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 16:11:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:23,906 INFO L93 Difference]: Finished difference Result 16744 states and 23446 transitions. [2022-07-12 16:11:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 288 [2022-07-12 16:11:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:23,980 INFO L225 Difference]: With dead ends: 16744 [2022-07-12 16:11:23,981 INFO L226 Difference]: Without dead ends: 9720 [2022-07-12 16:11:24,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 286 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 16:11:24,077 INFO L413 NwaCegarLoop]: 5950 mSDtfsCounter, 2945 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 9386 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:24,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2945 Valid, 9386 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:11:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9720 states. [2022-07-12 16:11:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9720 to 9712. [2022-07-12 16:11:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9712 states, 6456 states have (on average 1.2671933085501859) internal successors, (8181), 6616 states have internal predecessors, (8181), 2687 states have call successors, (2687), 568 states have call predecessors, (2687), 568 states have return successors, (2687), 2653 states have call predecessors, (2687), 2687 states have call successors, (2687) [2022-07-12 16:11:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9712 states to 9712 states and 13555 transitions. [2022-07-12 16:11:24,400 INFO L78 Accepts]: Start accepts. Automaton has 9712 states and 13555 transitions. Word has length 288 [2022-07-12 16:11:24,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:24,401 INFO L495 AbstractCegarLoop]: Abstraction has 9712 states and 13555 transitions. [2022-07-12 16:11:24,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 16:11:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9712 states and 13555 transitions. [2022-07-12 16:11:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-07-12 16:11:24,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:24,414 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 16, 16, 16, 16, 16, 16, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:24,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 16:11:24,635 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 16:11:24,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash 370337443, now seen corresponding path program 1 times [2022-07-12 16:11:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:24,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132416405] [2022-07-12 16:11:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:24,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:24,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:24,640 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 16:11:24,642 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 16:11:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:26,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:26,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 967 trivial. 0 not checked. [2022-07-12 16:11:26,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:26,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:26,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132416405] [2022-07-12 16:11:26,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132416405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:26,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:26,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:11:26,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660592066] [2022-07-12 16:11:26,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:26,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:26,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:26,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:26,479 INFO L87 Difference]: Start difference. First operand 9712 states and 13555 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 16:11:26,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:26,961 INFO L93 Difference]: Finished difference Result 19668 states and 27404 transitions. [2022-07-12 16:11:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:26,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 308 [2022-07-12 16:11:26,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:27,011 INFO L225 Difference]: With dead ends: 19668 [2022-07-12 16:11:27,011 INFO L226 Difference]: Without dead ends: 9991 [2022-07-12 16:11:27,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 306 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 16:11:27,051 INFO L413 NwaCegarLoop]: 3559 mSDtfsCounter, 324 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 7021 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:27,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 7021 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 16:11:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9991 states. [2022-07-12 16:11:27,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9991 to 9991. [2022-07-12 16:11:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9991 states, 6659 states have (on average 1.2649046403363868) internal successors, (8423), 6821 states have internal predecessors, (8423), 2736 states have call successors, (2736), 595 states have call predecessors, (2736), 595 states have return successors, (2736), 2702 states have call predecessors, (2736), 2736 states have call successors, (2736) [2022-07-12 16:11:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9991 states to 9991 states and 13895 transitions. [2022-07-12 16:11:27,401 INFO L78 Accepts]: Start accepts. Automaton has 9991 states and 13895 transitions. Word has length 308 [2022-07-12 16:11:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:27,405 INFO L495 AbstractCegarLoop]: Abstraction has 9991 states and 13895 transitions. [2022-07-12 16:11:27,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 16:11:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand 9991 states and 13895 transitions. [2022-07-12 16:11:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-12 16:11:27,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:27,422 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:27,493 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 16:11:27,635 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 16:11:27,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash -539694735, now seen corresponding path program 1 times [2022-07-12 16:11:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:27,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296427796] [2022-07-12 16:11:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:27,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:27,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:27,639 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 16:11:27,640 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 16:11:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:29,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:29,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2022-07-12 16:11:29,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:29,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:29,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296427796] [2022-07-12 16:11:29,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296427796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:29,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:29,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:11:29,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104019306] [2022-07-12 16:11:29,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:29,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:29,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:29,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:29,461 INFO L87 Difference]: Start difference. First operand 9991 states and 13895 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 16:11:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:30,234 INFO L93 Difference]: Finished difference Result 22281 states and 31017 transitions. [2022-07-12 16:11:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:30,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 352 [2022-07-12 16:11:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:30,286 INFO L225 Difference]: With dead ends: 22281 [2022-07-12 16:11:30,287 INFO L226 Difference]: Without dead ends: 12542 [2022-07-12 16:11:30,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 350 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 16:11:30,314 INFO L413 NwaCegarLoop]: 6688 mSDtfsCounter, 3165 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 10145 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:30,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 10145 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:11:30,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12542 states. [2022-07-12 16:11:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12542 to 12538. [2022-07-12 16:11:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 8355 states have (on average 1.2649910233393178) internal successors, (10569), 8557 states have internal predecessors, (10569), 3434 states have call successors, (3434), 748 states have call predecessors, (3434), 748 states have return successors, (3434), 3390 states have call predecessors, (3434), 3434 states have call successors, (3434) [2022-07-12 16:11:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17437 transitions. [2022-07-12 16:11:30,722 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17437 transitions. Word has length 352 [2022-07-12 16:11:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:30,723 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 17437 transitions. [2022-07-12 16:11:30,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 16:11:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17437 transitions. [2022-07-12 16:11:30,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-12 16:11:30,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:30,744 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:30,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-12 16:11:30,963 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 16:11:30,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -291548241, now seen corresponding path program 1 times [2022-07-12 16:11:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:30,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276953051] [2022-07-12 16:11:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:30,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:30,969 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 16:11:30,971 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 16:11:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:32,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:32,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:11:35,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:35,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276953051] [2022-07-12 16:11:35,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276953051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:35,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:35,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:11:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751270143] [2022-07-12 16:11:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:35,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:35,421 INFO L87 Difference]: Start difference. First operand 12538 states and 17437 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:35,871 INFO L93 Difference]: Finished difference Result 24824 states and 34649 transitions. [2022-07-12 16:11:35,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:35,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 352 [2022-07-12 16:11:35,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:35,941 INFO L225 Difference]: With dead ends: 24824 [2022-07-12 16:11:35,942 INFO L226 Difference]: Without dead ends: 12538 [2022-07-12 16:11:35,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 350 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 16:11:35,996 INFO L413 NwaCegarLoop]: 3513 mSDtfsCounter, 3351 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:35,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 3513 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:11:36,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12538 states. [2022-07-12 16:11:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12538 to 12538. [2022-07-12 16:11:36,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 8355 states have (on average 1.264392579293836) internal successors, (10564), 8557 states have internal predecessors, (10564), 3434 states have call successors, (3434), 748 states have call predecessors, (3434), 748 states have return successors, (3434), 3390 states have call predecessors, (3434), 3434 states have call successors, (3434) [2022-07-12 16:11:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17432 transitions. [2022-07-12 16:11:36,474 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17432 transitions. Word has length 352 [2022-07-12 16:11:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:36,477 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 17432 transitions. [2022-07-12 16:11:36,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17432 transitions. [2022-07-12 16:11:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-07-12 16:11:36,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:36,498 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:36,555 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 16:11:36,719 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 16:11:36,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 423858537, now seen corresponding path program 1 times [2022-07-12 16:11:36,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:36,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850942540] [2022-07-12 16:11:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:36,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:36,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:36,724 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 16:11:36,726 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 16:11:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:38,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:38,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:11:41,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:41,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:41,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850942540] [2022-07-12 16:11:41,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850942540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:41,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:41,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:11:41,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236775513] [2022-07-12 16:11:41,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:41,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:41,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:41,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:41,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:41,151 INFO L87 Difference]: Start difference. First operand 12538 states and 17432 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:41,443 INFO L93 Difference]: Finished difference Result 24824 states and 34639 transitions. [2022-07-12 16:11:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 353 [2022-07-12 16:11:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:41,509 INFO L225 Difference]: With dead ends: 24824 [2022-07-12 16:11:41,509 INFO L226 Difference]: Without dead ends: 12538 [2022-07-12 16:11:41,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 351 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 16:11:41,563 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 3349 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3349 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:41,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3349 Valid, 3512 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:11:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12538 states. [2022-07-12 16:11:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12538 to 12538. [2022-07-12 16:11:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 8355 states have (on average 1.2637941352483544) internal successors, (10559), 8557 states have internal predecessors, (10559), 3434 states have call successors, (3434), 748 states have call predecessors, (3434), 748 states have return successors, (3434), 3390 states have call predecessors, (3434), 3434 states have call successors, (3434) [2022-07-12 16:11:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17427 transitions. [2022-07-12 16:11:42,155 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17427 transitions. Word has length 353 [2022-07-12 16:11:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:42,156 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 17427 transitions. [2022-07-12 16:11:42,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17427 transitions. [2022-07-12 16:11:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-12 16:11:42,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:42,178 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:42,239 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 16:11:42,391 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 16:11:42,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:42,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1241148779, now seen corresponding path program 1 times [2022-07-12 16:11:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673986541] [2022-07-12 16:11:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:42,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:42,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:42,396 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 16:11:42,398 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 16:11:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:44,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:44,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:11:46,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:46,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673986541] [2022-07-12 16:11:46,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673986541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:46,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:46,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:11:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188591619] [2022-07-12 16:11:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:46,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:46,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:46,693 INFO L87 Difference]: Start difference. First operand 12538 states and 17427 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:46,987 INFO L93 Difference]: Finished difference Result 24824 states and 34629 transitions. [2022-07-12 16:11:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 354 [2022-07-12 16:11:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:47,052 INFO L225 Difference]: With dead ends: 24824 [2022-07-12 16:11:47,053 INFO L226 Difference]: Without dead ends: 12538 [2022-07-12 16:11:47,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 352 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 16:11:47,100 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 3347 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:47,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 3511 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:11:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12538 states. [2022-07-12 16:11:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12538 to 12538. [2022-07-12 16:11:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12538 states, 8355 states have (on average 1.2631956912028726) internal successors, (10554), 8557 states have internal predecessors, (10554), 3434 states have call successors, (3434), 748 states have call predecessors, (3434), 748 states have return successors, (3434), 3390 states have call predecessors, (3434), 3434 states have call successors, (3434) [2022-07-12 16:11:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17422 transitions. [2022-07-12 16:11:47,686 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17422 transitions. Word has length 354 [2022-07-12 16:11:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:47,687 INFO L495 AbstractCegarLoop]: Abstraction has 12538 states and 17422 transitions. [2022-07-12 16:11:47,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:47,688 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17422 transitions. [2022-07-12 16:11:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-07-12 16:11:47,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:47,705 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:47,770 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 16:11:47,927 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 16:11:47,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash 921859109, now seen corresponding path program 1 times [2022-07-12 16:11:47,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:47,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927913723] [2022-07-12 16:11:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:47,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:47,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:47,932 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 16:11:47,971 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 16:11:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:49,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2067 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:49,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:11:52,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:52,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:52,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927913723] [2022-07-12 16:11:52,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927913723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:52,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:52,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:11:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755718268] [2022-07-12 16:11:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:52,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:52,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:52,036 INFO L87 Difference]: Start difference. First operand 12538 states and 17422 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:52,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:52,366 INFO L93 Difference]: Finished difference Result 25379 states and 35239 transitions. [2022-07-12 16:11:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:52,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 355 [2022-07-12 16:11:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:52,432 INFO L225 Difference]: With dead ends: 25379 [2022-07-12 16:11:52,433 INFO L226 Difference]: Without dead ends: 13093 [2022-07-12 16:11:52,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 353 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 16:11:52,486 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 3186 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:52,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 3838 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:11:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13093 states. [2022-07-12 16:11:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13093 to 13093. [2022-07-12 16:11:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13093 states, 8705 states have (on average 1.256634118322803) internal successors, (10939), 8922 states have internal predecessors, (10939), 3549 states have call successors, (3549), 838 states have call predecessors, (3549), 838 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:11:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13093 states to 13093 states and 18037 transitions. [2022-07-12 16:11:53,333 INFO L78 Accepts]: Start accepts. Automaton has 13093 states and 18037 transitions. Word has length 355 [2022-07-12 16:11:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:53,334 INFO L495 AbstractCegarLoop]: Abstraction has 13093 states and 18037 transitions. [2022-07-12 16:11:53,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 13093 states and 18037 transitions. [2022-07-12 16:11:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-12 16:11:53,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:53,352 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:53,407 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 16:11:53,571 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 16:11:53,572 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash -271669465, now seen corresponding path program 1 times [2022-07-12 16:11:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:53,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738906284] [2022-07-12 16:11:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:53,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:53,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:53,576 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 16:11:53,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 16:11:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:11:55,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 2068 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:11:55,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:11:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:11:57,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:11:57,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:11:57,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738906284] [2022-07-12 16:11:57,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738906284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:11:57,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:11:57,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:11:57,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105281048] [2022-07-12 16:11:57,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:11:57,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:11:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:11:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:11:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:11:57,722 INFO L87 Difference]: Start difference. First operand 13093 states and 18037 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:11:58,055 INFO L93 Difference]: Finished difference Result 26109 states and 35984 transitions. [2022-07-12 16:11:58,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:11:58,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 356 [2022-07-12 16:11:58,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:11:58,115 INFO L225 Difference]: With dead ends: 26109 [2022-07-12 16:11:58,115 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:11:58,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 354 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 16:11:58,158 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 3278 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3278 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:11:58,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3278 Valid, 3602 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:11:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:11:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:11:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.2528579513299378) internal successors, (11069), 9052 states have internal predecessors, (11069), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:11:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18167 transitions. [2022-07-12 16:11:58,764 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18167 transitions. Word has length 356 [2022-07-12 16:11:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:11:58,765 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18167 transitions. [2022-07-12 16:11:58,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:11:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18167 transitions. [2022-07-12 16:11:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-07-12 16:11:58,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:11:58,784 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:58,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 16:11:58,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:11:59,000 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:11:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:11:59,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1498167009, now seen corresponding path program 1 times [2022-07-12 16:11:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:11:59,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353304927] [2022-07-12 16:11:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:11:59,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:11:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:11:59,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:11:59,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 16:12:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:00,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:00,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:03,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:03,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:03,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353304927] [2022-07-12 16:12:03,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353304927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:03,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:03,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482692053] [2022-07-12 16:12:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:03,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:03,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:03,280 INFO L87 Difference]: Start difference. First operand 13268 states and 18167 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:03,622 INFO L93 Difference]: Finished difference Result 26284 states and 36109 transitions. [2022-07-12 16:12:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:03,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 357 [2022-07-12 16:12:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:03,684 INFO L225 Difference]: With dead ends: 26284 [2022-07-12 16:12:03,684 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:12:03,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 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 16:12:03,738 INFO L413 NwaCegarLoop]: 3508 mSDtfsCounter, 3341 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:03,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 3508 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:12:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:12:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.2522920203735144) internal successors, (11064), 9052 states have internal predecessors, (11064), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18162 transitions. [2022-07-12 16:12:04,389 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18162 transitions. Word has length 357 [2022-07-12 16:12:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:04,390 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18162 transitions. [2022-07-12 16:12:04,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18162 transitions. [2022-07-12 16:12:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-07-12 16:12:04,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:04,404 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:04,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:04,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:04,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 643039459, now seen corresponding path program 1 times [2022-07-12 16:12:04,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:04,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112175365] [2022-07-12 16:12:04,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:04,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:04,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:04,608 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:04,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 16:12:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:06,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:06,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:08,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:08,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:08,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112175365] [2022-07-12 16:12:08,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112175365] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:08,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:08,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:08,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600658856] [2022-07-12 16:12:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:08,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:08,664 INFO L87 Difference]: Start difference. First operand 13268 states and 18162 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:09,047 INFO L93 Difference]: Finished difference Result 26284 states and 36099 transitions. [2022-07-12 16:12:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 358 [2022-07-12 16:12:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:09,108 INFO L225 Difference]: With dead ends: 26284 [2022-07-12 16:12:09,109 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:12:09,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 356 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 16:12:09,149 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 3339 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:09,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 3507 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:09,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:12:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:12:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.2517260894170912) internal successors, (11059), 9052 states have internal predecessors, (11059), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18157 transitions. [2022-07-12 16:12:09,694 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18157 transitions. Word has length 358 [2022-07-12 16:12:09,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:09,694 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18157 transitions. [2022-07-12 16:12:09,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18157 transitions. [2022-07-12 16:12:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-07-12 16:12:09,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:09,704 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:09,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:09,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:09,916 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:09,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:09,917 INFO L85 PathProgramCache]: Analyzing trace with hash 18405789, now seen corresponding path program 1 times [2022-07-12 16:12:09,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:09,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430585957] [2022-07-12 16:12:09,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:09,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:09,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:09,920 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:09,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 16:12:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:11,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:11,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:13,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:13,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:13,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430585957] [2022-07-12 16:12:13,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430585957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:13,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:13,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200804375] [2022-07-12 16:12:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:13,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:13,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:13,877 INFO L87 Difference]: Start difference. First operand 13268 states and 18157 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:14,275 INFO L93 Difference]: Finished difference Result 26284 states and 36089 transitions. [2022-07-12 16:12:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:14,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 359 [2022-07-12 16:12:14,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:14,322 INFO L225 Difference]: With dead ends: 26284 [2022-07-12 16:12:14,322 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:12:14,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 357 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 16:12:14,360 INFO L413 NwaCegarLoop]: 3506 mSDtfsCounter, 3337 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3337 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:14,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3337 Valid, 3506 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:14,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:12:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:12:14,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.2511601584606677) internal successors, (11054), 9052 states have internal predecessors, (11054), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:14,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18152 transitions. [2022-07-12 16:12:14,934 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18152 transitions. Word has length 359 [2022-07-12 16:12:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:14,935 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18152 transitions. [2022-07-12 16:12:14,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18152 transitions. [2022-07-12 16:12:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-07-12 16:12:14,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:14,945 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:14,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:15,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:15,146 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:15,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:15,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2050852193, now seen corresponding path program 1 times [2022-07-12 16:12:15,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:15,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491988239] [2022-07-12 16:12:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:15,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:15,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:15,150 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:15,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 16:12:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2072 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:16,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:19,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:19,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491988239] [2022-07-12 16:12:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491988239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:19,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:19,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:19,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083539810] [2022-07-12 16:12:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:19,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:19,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:19,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:19,134 INFO L87 Difference]: Start difference. First operand 13268 states and 18152 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:19,585 INFO L93 Difference]: Finished difference Result 26284 states and 36079 transitions. [2022-07-12 16:12:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:19,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 360 [2022-07-12 16:12:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:19,629 INFO L225 Difference]: With dead ends: 26284 [2022-07-12 16:12:19,629 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:12:19,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 358 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 16:12:19,663 INFO L413 NwaCegarLoop]: 3505 mSDtfsCounter, 3335 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:19,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 3505 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:12:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:12:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.2505942275042445) internal successors, (11049), 9052 states have internal predecessors, (11049), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18147 transitions. [2022-07-12 16:12:20,098 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18147 transitions. Word has length 360 [2022-07-12 16:12:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:20,099 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18147 transitions. [2022-07-12 16:12:20,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18147 transitions. [2022-07-12 16:12:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-12 16:12:20,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:20,109 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:20,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:20,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:20,310 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:20,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:20,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1658823591, now seen corresponding path program 1 times [2022-07-12 16:12:20,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:20,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139303233] [2022-07-12 16:12:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:20,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:20,314 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:20,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 16:12:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:22,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2073 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:22,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:24,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:24,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:24,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139303233] [2022-07-12 16:12:24,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139303233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:24,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:24,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398489088] [2022-07-12 16:12:24,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:24,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:24,312 INFO L87 Difference]: Start difference. First operand 13268 states and 18147 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:24,662 INFO L93 Difference]: Finished difference Result 26284 states and 36069 transitions. [2022-07-12 16:12:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 361 [2022-07-12 16:12:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:24,709 INFO L225 Difference]: With dead ends: 26284 [2022-07-12 16:12:24,709 INFO L226 Difference]: Without dead ends: 13268 [2022-07-12 16:12:24,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 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 16:12:24,746 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 3333 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:24,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 3504 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:24,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2022-07-12 16:12:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13268. [2022-07-12 16:12:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 8835 states have (on average 1.250028296547821) internal successors, (11044), 9052 states have internal predecessors, (11044), 3549 states have call successors, (3549), 883 states have call predecessors, (3549), 883 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 18142 transitions. [2022-07-12 16:12:25,168 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 18142 transitions. Word has length 361 [2022-07-12 16:12:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:25,169 INFO L495 AbstractCegarLoop]: Abstraction has 13268 states and 18142 transitions. [2022-07-12 16:12:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 18142 transitions. [2022-07-12 16:12:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-07-12 16:12:25,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:25,180 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:25,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:25,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:25,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2018645083, now seen corresponding path program 1 times [2022-07-12 16:12:25,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:25,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285148467] [2022-07-12 16:12:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:25,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:25,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:25,392 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:25,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 16:12:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:27,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:27,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:29,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:29,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:29,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285148467] [2022-07-12 16:12:29,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285148467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:29,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:29,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:29,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004489536] [2022-07-12 16:12:29,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:29,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:29,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:29,459 INFO L87 Difference]: Start difference. First operand 13268 states and 18142 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:29,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:29,891 INFO L93 Difference]: Finished difference Result 26354 states and 36109 transitions. [2022-07-12 16:12:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:29,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 362 [2022-07-12 16:12:29,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:29,936 INFO L225 Difference]: With dead ends: 26354 [2022-07-12 16:12:29,936 INFO L226 Difference]: Without dead ends: 13338 [2022-07-12 16:12:29,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 360 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 16:12:29,977 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 3295 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:29,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 3558 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:29,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2022-07-12 16:12:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 13338. [2022-07-12 16:12:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13338 states, 8885 states have (on average 1.2480585256049521) internal successors, (11089), 9102 states have internal predecessors, (11089), 3549 states have call successors, (3549), 903 states have call predecessors, (3549), 903 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13338 states to 13338 states and 18187 transitions. [2022-07-12 16:12:30,399 INFO L78 Accepts]: Start accepts. Automaton has 13338 states and 18187 transitions. Word has length 362 [2022-07-12 16:12:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:30,400 INFO L495 AbstractCegarLoop]: Abstraction has 13338 states and 18187 transitions. [2022-07-12 16:12:30,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:30,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13338 states and 18187 transitions. [2022-07-12 16:12:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-12 16:12:30,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:30,412 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:30,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:30,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:30,628 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 170573589, now seen corresponding path program 1 times [2022-07-12 16:12:30,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:30,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591928807] [2022-07-12 16:12:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:30,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:30,632 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:30,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 16:12:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:32,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:32,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:34,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:34,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:34,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591928807] [2022-07-12 16:12:34,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591928807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:34,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:34,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:34,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044522999] [2022-07-12 16:12:34,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:34,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:34,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:34,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:34,465 INFO L87 Difference]: Start difference. First operand 13338 states and 18187 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:34,899 INFO L93 Difference]: Finished difference Result 26424 states and 36149 transitions. [2022-07-12 16:12:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 363 [2022-07-12 16:12:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:34,941 INFO L225 Difference]: With dead ends: 26424 [2022-07-12 16:12:34,942 INFO L226 Difference]: Without dead ends: 13338 [2022-07-12 16:12:34,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 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 16:12:34,976 INFO L413 NwaCegarLoop]: 3502 mSDtfsCounter, 3329 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:34,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3329 Valid, 3502 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:34,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2022-07-12 16:12:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 13338. [2022-07-12 16:12:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13338 states, 8885 states have (on average 1.247495779403489) internal successors, (11084), 9102 states have internal predecessors, (11084), 3549 states have call successors, (3549), 903 states have call predecessors, (3549), 903 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13338 states to 13338 states and 18182 transitions. [2022-07-12 16:12:35,408 INFO L78 Accepts]: Start accepts. Automaton has 13338 states and 18182 transitions. Word has length 363 [2022-07-12 16:12:35,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:35,409 INFO L495 AbstractCegarLoop]: Abstraction has 13338 states and 18182 transitions. [2022-07-12 16:12:35,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13338 states and 18182 transitions. [2022-07-12 16:12:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-12 16:12:35,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:35,419 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:35,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:35,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:35,620 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1170551273, now seen corresponding path program 1 times [2022-07-12 16:12:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820751063] [2022-07-12 16:12:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:35,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:35,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:35,624 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:35,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 16:12:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:37,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:37,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:39,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:39,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:39,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820751063] [2022-07-12 16:12:39,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820751063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:39,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:39,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489312248] [2022-07-12 16:12:39,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:39,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:39,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:39,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:39,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:39,511 INFO L87 Difference]: Start difference. First operand 13338 states and 18182 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:40,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:40,044 INFO L93 Difference]: Finished difference Result 26424 states and 36139 transitions. [2022-07-12 16:12:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:40,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 364 [2022-07-12 16:12:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:40,092 INFO L225 Difference]: With dead ends: 26424 [2022-07-12 16:12:40,092 INFO L226 Difference]: Without dead ends: 13338 [2022-07-12 16:12:40,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 362 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 16:12:40,131 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 3327 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:40,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 3501 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:40,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2022-07-12 16:12:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 13338. [2022-07-12 16:12:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13338 states, 8885 states have (on average 1.2469330332020259) internal successors, (11079), 9102 states have internal predecessors, (11079), 3549 states have call successors, (3549), 903 states have call predecessors, (3549), 903 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13338 states to 13338 states and 18177 transitions. [2022-07-12 16:12:40,644 INFO L78 Accepts]: Start accepts. Automaton has 13338 states and 18177 transitions. Word has length 364 [2022-07-12 16:12:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:40,645 INFO L495 AbstractCegarLoop]: Abstraction has 13338 states and 18177 transitions. [2022-07-12 16:12:40,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 13338 states and 18177 transitions. [2022-07-12 16:12:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-07-12 16:12:40,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:40,661 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:40,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-12 16:12:40,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:40,874 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:40,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash 318767569, now seen corresponding path program 1 times [2022-07-12 16:12:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:40,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353733973] [2022-07-12 16:12:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:40,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:40,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:40,877 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:40,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 16:12:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:42,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:12:42,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:44,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:44,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:44,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353733973] [2022-07-12 16:12:44,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353733973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:44,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:44,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:12:44,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221956373] [2022-07-12 16:12:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:44,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:12:44,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:12:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:12:44,829 INFO L87 Difference]: Start difference. First operand 13338 states and 18177 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:45,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:45,249 INFO L93 Difference]: Finished difference Result 26424 states and 36129 transitions. [2022-07-12 16:12:45,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:12:45,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 365 [2022-07-12 16:12:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:45,307 INFO L225 Difference]: With dead ends: 26424 [2022-07-12 16:12:45,308 INFO L226 Difference]: Without dead ends: 13338 [2022-07-12 16:12:45,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 363 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 16:12:45,344 INFO L413 NwaCegarLoop]: 3500 mSDtfsCounter, 3325 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:45,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 3500 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13338 states. [2022-07-12 16:12:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13338 to 13338. [2022-07-12 16:12:45,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13338 states, 8885 states have (on average 1.2463702870005628) internal successors, (11074), 9102 states have internal predecessors, (11074), 3549 states have call successors, (3549), 903 states have call predecessors, (3549), 903 states have return successors, (3549), 3505 states have call predecessors, (3549), 3549 states have call successors, (3549) [2022-07-12 16:12:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13338 states to 13338 states and 18172 transitions. [2022-07-12 16:12:45,934 INFO L78 Accepts]: Start accepts. Automaton has 13338 states and 18172 transitions. Word has length 365 [2022-07-12 16:12:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:45,935 INFO L495 AbstractCegarLoop]: Abstraction has 13338 states and 18172 transitions. [2022-07-12 16:12:45,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13338 states and 18172 transitions. [2022-07-12 16:12:45,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-07-12 16:12:45,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:12:45,945 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:45,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-12 16:12:46,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:46,147 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:12:46,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:12:46,148 INFO L85 PathProgramCache]: Analyzing trace with hash 347396720, now seen corresponding path program 1 times [2022-07-12 16:12:46,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:12:46,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096987309] [2022-07-12 16:12:46,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:12:46,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:12:46,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:12:46,150 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:12:46,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-12 16:12:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:12:47,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 16:12:47,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:12:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1412 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-07-12 16:12:47,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:12:47,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:12:47,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096987309] [2022-07-12 16:12:47,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096987309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:12:47,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:12:47,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:12:47,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645208141] [2022-07-12 16:12:47,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:12:47,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:12:47,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:12:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:12:47,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:12:47,885 INFO L87 Difference]: Start difference. First operand 13338 states and 18172 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:12:48,363 INFO L93 Difference]: Finished difference Result 13348 states and 18192 transitions. [2022-07-12 16:12:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:12:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 365 [2022-07-12 16:12:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:12:48,366 INFO L225 Difference]: With dead ends: 13348 [2022-07-12 16:12:48,366 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 16:12:48,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:12:48,397 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 3 mSDsluCounter, 10497 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13998 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:12:48,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13998 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 16:12:48,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 16:12:48,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 16:12:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 16:12:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 16:12:48,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 365 [2022-07-12 16:12:48,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:12:48,400 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 16:12:48,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-12 16:12:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 16:12:48,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 16:12:48,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 16:12:48,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-12 16:12:48,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:12:48,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.