./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:19:36,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:19:36,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:19:36,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:19:36,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:19:36,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:19:36,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:19:36,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:19:36,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:19:36,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:19:36,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:19:36,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:19:36,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:19:36,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:19:36,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:19:36,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:19:36,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:19:36,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:19:36,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:19:36,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:19:36,374 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:19:36,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:19:36,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:19:36,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:19:36,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:19:36,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:19:36,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:19:36,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:19:36,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:19:36,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:19:36,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:19:36,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:19:36,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:19:36,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:19:36,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:19:36,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:19:36,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:19:36,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:19:36,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:19:36,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:19:36,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:19:36,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:19:36,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:19:36,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:19:36,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:19:36,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:19:36,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:19:36,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:19:36,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:19:36,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:19:36,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:19:36,414 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:19:36,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:19:36,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:19:36,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:19:36,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:19:36,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:19:36,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:19:36,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:19:36,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:19:36,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:19:36,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-14 00:19:36,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:19:36,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:19:36,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:19:36,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:19:36,632 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:19:36,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-14 00:19:36,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d0b46c/db803bb8ca7041d291ea236da5ee0e38/FLAGf7238433b [2022-07-14 00:19:37,394 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:19:37,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-14 00:19:37,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d0b46c/db803bb8ca7041d291ea236da5ee0e38/FLAGf7238433b [2022-07-14 00:19:37,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/056d0b46c/db803bb8ca7041d291ea236da5ee0e38 [2022-07-14 00:19:37,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:19:37,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:19:37,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:19:37,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:19:37,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:19:37,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:37" (1/1) ... [2022-07-14 00:19:37,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6941be8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:37, skipping insertion in model container [2022-07-14 00:19:37,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:37" (1/1) ... [2022-07-14 00:19:37,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:19:37,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:19:38,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-14 00:19:40,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:19:41,113 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:19:41,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-14 00:19:41,277 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:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) 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) [2022-07-14 00:19:41,285 INFO L158 Benchmark]: Toolchain (without parser) took 3556.46ms. Allocated memory was 102.8MB in the beginning and 190.8MB in the end (delta: 88.1MB). Free memory was 67.7MB in the beginning and 117.5MB in the end (delta: -49.8MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2022-07-14 00:19:41,286 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:19:41,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3547.64ms. Allocated memory was 102.8MB in the beginning and 190.8MB in the end (delta: 88.1MB). Free memory was 67.4MB in the beginning and 117.5MB in the end (delta: -50.1MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2022-07-14 00:19:41,288 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 102.8MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3547.64ms. Allocated memory was 102.8MB in the beginning and 190.8MB in the end (delta: 88.1MB). Free memory was 67.4MB in the beginning and 117.5MB in the end (delta: -50.1MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:19:42,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:19:42,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:19:43,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:19:43,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:19:43,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:19:43,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:19:43,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:19:43,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:19:43,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:19:43,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:19:43,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:19:43,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:19:43,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:19:43,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:19:43,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:19:43,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:19:43,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:19:43,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:19:43,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:19:43,046 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:19:43,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:19:43,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:19:43,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:19:43,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:19:43,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:19:43,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:19:43,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:19:43,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:19:43,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:19:43,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:19:43,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:19:43,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:19:43,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:19:43,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:19:43,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:19:43,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:19:43,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:19:43,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:19:43,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:19:43,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:19:43,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:19:43,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:19:43,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:19:43,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:19:43,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:19:43,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:19:43,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:19:43,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:19:43,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:19:43,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:19:43,102 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:19:43,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:19:43,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:19:43,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:19:43,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:19:43,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:19:43,107 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:19:43,107 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:19:43,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:19:43,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:19:43,108 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:19:43,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:19:43,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:19:43,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:19:43,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:19:43,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:19:43,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:19:43,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:19:43,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:19:43,109 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:19:43,110 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:19:43,110 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:19:43,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:19:43,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:19:43,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:19:43,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-14 00:19:43,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:19:43,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:19:43,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:19:43,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:19:43,451 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:19:43,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-14 00:19:43,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8e09259/5779acbb2b8b4e16914d8c6cf95a83e9/FLAG3c3f9653e [2022-07-14 00:19:44,245 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:19:44,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-14 00:19:44,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8e09259/5779acbb2b8b4e16914d8c6cf95a83e9/FLAG3c3f9653e [2022-07-14 00:19:44,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8e09259/5779acbb2b8b4e16914d8c6cf95a83e9 [2022-07-14 00:19:44,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:19:44,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:19:44,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:19:44,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:19:44,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:19:44,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:44" (1/1) ... [2022-07-14 00:19:44,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f995d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:44, skipping insertion in model container [2022-07-14 00:19:44,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:44" (1/1) ... [2022-07-14 00:19:44,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:19:44,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:19:45,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-14 00:19:47,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:19:47,638 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:19:47,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:19:47,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-14 00:19:48,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:19:48,086 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:19:48,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-14 00:19:48,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:19:48,648 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:19:48,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48 WrapperNode [2022-07-14 00:19:48,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:19:48,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:19:48,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:19:48,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:19:48,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:48,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:48,948 INFO L137 Inliner]: procedures = 451, calls = 5982, calls flagged for inlining = 178, calls inlined = 156, statements flattened = 7209 [2022-07-14 00:19:48,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:19:48,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:19:48,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:19:48,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:19:48,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:48,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:19:49,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:19:49,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:19:49,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:19:49,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (1/1) ... [2022-07-14 00:19:49,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:19:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:19:49,380 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) [2022-07-14 00:19:49,408 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 [2022-07-14 00:19:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-14 00:19:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-14 00:19:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-14 00:19:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-14 00:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 00:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-14 00:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-14 00:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-14 00:19:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-14 00:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-14 00:19:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-14 00:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 00:19:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 00:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-14 00:19:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-14 00:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:19:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-14 00:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-14 00:19:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-14 00:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-14 00:19:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-14 00:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-14 00:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:19:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:19:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:19:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-14 00:19:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-14 00:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:19:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 00:19:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 00:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:19:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:19:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:19:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:19:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 00:19:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 00:19:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:19:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:19:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-14 00:19:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-14 00:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-14 00:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-14 00:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-14 00:19:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-14 00:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:19:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-14 00:19:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-14 00:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:19:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:19:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:19:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-14 00:19:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-14 00:19:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 00:19:49,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 00:19:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:19:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:19:49,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:19:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 00:19:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 00:19:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:19:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:19:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 00:19:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 00:19:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-14 00:19:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-14 00:19:49,432 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 00:19:49,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 00:19:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 00:19:49,433 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 00:19:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:19:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-14 00:19:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-14 00:19:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-14 00:19:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-14 00:19:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:19:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:19:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 00:19:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 00:19:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-07-14 00:19:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-07-14 00:19:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:19:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-14 00:19:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-14 00:19:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-14 00:19:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-14 00:19:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:19:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:19:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:19:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:19:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:19:49,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:19:49,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:19:49,439 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:19:49,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:19:49,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 00:19:49,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 00:19:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-14 00:19:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-14 00:19:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-14 00:19:49,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-14 00:19:49,445 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:19:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:19:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 00:19:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:19:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:19:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:19:49,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 00:19:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 00:19:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:19:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-14 00:19:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-14 00:19:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-14 00:19:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-14 00:19:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-14 00:19:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:19:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 00:19:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 00:19:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:19:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:19:49,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:19:49,449 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:19:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:19:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-14 00:19:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-14 00:19:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 00:19:49,450 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 00:19:49,450 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 00:19:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:19:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:19:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 00:19:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 00:19:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-14 00:19:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-14 00:19:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 00:19:49,451 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 00:19:49,451 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:19:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-14 00:19:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-14 00:19:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-14 00:19:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:19:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-14 00:19:49,452 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 00:19:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:19:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:19:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-14 00:19:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-14 00:19:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-14 00:19:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:19:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-14 00:19:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-14 00:19:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-14 00:19:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:19:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:19:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 00:19:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 00:19:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-14 00:19:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-14 00:19:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-14 00:19:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-14 00:19:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-14 00:19:49,455 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-14 00:19:49,455 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 00:19:49,456 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 00:19:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-14 00:19:49,456 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-14 00:19:49,456 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-14 00:19:49,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-14 00:19:50,176 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:19:50,178 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:19:53,819 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:20:44,259 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:20:44,271 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:20:44,272 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-14 00:20:44,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:44 BoogieIcfgContainer [2022-07-14 00:20:44,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:20:44,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:20:44,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:20:44,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:20:44,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:19:44" (1/3) ... [2022-07-14 00:20:44,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff761e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:44, skipping insertion in model container [2022-07-14 00:20:44,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:48" (2/3) ... [2022-07-14 00:20:44,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff761e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:44, skipping insertion in model container [2022-07-14 00:20:44,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:44" (3/3) ... [2022-07-14 00:20:44,280 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-14 00:20:44,289 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:20:44,290 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:20:44,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:20:44,354 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@2e222a46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f815bbb [2022-07-14 00:20:44,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:20:44,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) [2022-07-14 00:20:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 00:20:44,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:44,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:44,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash 26763159, now seen corresponding path program 1 times [2022-07-14 00:20:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:20:44,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106302005] [2022-07-14 00:20:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:44,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:20:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:20:44,412 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) [2022-07-14 00:20:44,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:20:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:49,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:20:49,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:49,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:20:49,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:20:49,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:20:49,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106302005] [2022-07-14 00:20:49,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106302005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:49,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:20:49,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:20:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542244343] [2022-07-14 00:20:49,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:20:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:20:49,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:20:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:20:49,825 INFO L87 Difference]: Start difference. First operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 00:20:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:50,195 INFO L93 Difference]: Finished difference Result 3558 states and 5060 transitions. [2022-07-14 00:20:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:20:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-14 00:20:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:50,226 INFO L225 Difference]: With dead ends: 3558 [2022-07-14 00:20:50,226 INFO L226 Difference]: Without dead ends: 1742 [2022-07-14 00:20:50,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:20:50,247 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:50,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:20:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-14 00:20:50,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-14 00:20:50,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1232 states have (on average 1.2962662337662338) internal successors, (1597), 1255 states have internal predecessors, (1597), 410 states have call successors, (410), 99 states have call predecessors, (410), 99 states have return successors, (410), 406 states have call predecessors, (410), 409 states have call successors, (410) [2022-07-14 00:20:50,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2417 transitions. [2022-07-14 00:20:50,399 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2417 transitions. Word has length 30 [2022-07-14 00:20:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:50,400 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2417 transitions. [2022-07-14 00:20:50,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 00:20:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2417 transitions. [2022-07-14 00:20:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 00:20:50,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:50,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:50,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 00:20:50,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:20:50,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:50,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:50,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114825, now seen corresponding path program 1 times [2022-07-14 00:20:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:20:50,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376350661] [2022-07-14 00:20:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:20:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:20:50,643 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) [2022-07-14 00:20:50,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:20:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:57,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:20:57,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:20:57,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:20:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:20:57,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:20:57,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376350661] [2022-07-14 00:20:57,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376350661] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:20:57,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:20:57,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 00:20:57,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675937549] [2022-07-14 00:20:57,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:20:57,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:20:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:20:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:20:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:20:57,505 INFO L87 Difference]: Start difference. First operand 1742 states and 2417 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 00:20:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:58,430 INFO L93 Difference]: Finished difference Result 3488 states and 4848 transitions. [2022-07-14 00:20:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:20:58,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-14 00:20:58,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:58,441 INFO L225 Difference]: With dead ends: 3488 [2022-07-14 00:20:58,446 INFO L226 Difference]: Without dead ends: 1753 [2022-07-14 00:20:58,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:20:58,469 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 14 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12018 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:58,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12018 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 00:20:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-07-14 00:20:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1751. [2022-07-14 00:20:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1240 states have (on average 1.2991935483870967) internal successors, (1611), 1263 states have internal predecessors, (1611), 410 states have call successors, (410), 100 states have call predecessors, (410), 100 states have return successors, (411), 406 states have call predecessors, (411), 409 states have call successors, (411) [2022-07-14 00:20:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2432 transitions. [2022-07-14 00:20:58,584 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2432 transitions. Word has length 31 [2022-07-14 00:20:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:58,597 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2432 transitions. [2022-07-14 00:20:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 00:20:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2432 transitions. [2022-07-14 00:20:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 00:20:58,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:58,600 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:58,813 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2022-07-14 00:20:58,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 137 [2022-07-14 00:20:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:20:58,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:58,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:58,932 INFO L85 PathProgramCache]: Analyzing trace with hash -384185321, now seen corresponding path program 2 times [2022-07-14 00:20:58,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:20:58,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291067452] [2022-07-14 00:20:58,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:20:58,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:20:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:20:58,956 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) [2022-07-14 00:20:59,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:21:04,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:21:04,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:21:04,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:21:04,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 00:21:04,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:04,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:21:04,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291067452] [2022-07-14 00:21:04,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291067452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:04,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:21:04,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:21:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235142296] [2022-07-14 00:21:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:21:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:21:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:21:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:04,968 INFO L87 Difference]: Start difference. First operand 1751 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 00:21:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:05,564 INFO L93 Difference]: Finished difference Result 5222 states and 7260 transitions. [2022-07-14 00:21:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:21:05,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-14 00:21:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:05,585 INFO L225 Difference]: With dead ends: 5222 [2022-07-14 00:21:05,585 INFO L226 Difference]: Without dead ends: 3479 [2022-07-14 00:21:05,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:05,596 INFO L413 NwaCegarLoop]: 2830 mSDtfsCounter, 2381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:05,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 5228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 00:21:05,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-14 00:21:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-14 00:21:05,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2461 states have (on average 1.2998780983340106) internal successors, (3199), 2506 states have internal predecessors, (3199), 816 states have call successors, (816), 199 states have call predecessors, (816), 199 states have return successors, (818), 809 states have call predecessors, (818), 815 states have call successors, (818) [2022-07-14 00:21:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4833 transitions. [2022-07-14 00:21:05,734 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4833 transitions. Word has length 34 [2022-07-14 00:21:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:05,734 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4833 transitions. [2022-07-14 00:21:05,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 00:21:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4833 transitions. [2022-07-14 00:21:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-14 00:21:05,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:05,737 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:21:05,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:21:05,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:21:05,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:05,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:05,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1036926639, now seen corresponding path program 1 times [2022-07-14 00:21:05,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:21:05,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293276541] [2022-07-14 00:21:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:05,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:21:05,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:21:05,970 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) [2022-07-14 00:21:06,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:21:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:11,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 5098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:21:11,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 00:21:11,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:11,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:21:11,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293276541] [2022-07-14 00:21:11,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293276541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:11,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:21:11,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:21:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003742512] [2022-07-14 00:21:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:11,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:21:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:21:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:21:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:21:11,852 INFO L87 Difference]: Start difference. First operand 3477 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 00:21:12,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:12,652 INFO L93 Difference]: Finished difference Result 10412 states and 14529 transitions. [2022-07-14 00:21:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:21:12,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-14 00:21:12,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:12,691 INFO L225 Difference]: With dead ends: 10412 [2022-07-14 00:21:12,691 INFO L226 Difference]: Without dead ends: 6938 [2022-07-14 00:21:12,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:21:12,712 INFO L413 NwaCegarLoop]: 2899 mSDtfsCounter, 2384 mSDsluCounter, 8208 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 11107 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:12,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 11107 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 00:21:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-14 00:21:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6928. [2022-07-14 00:21:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4901 states have (on average 1.29973474801061) internal successors, (6370), 4990 states have internal predecessors, (6370), 1629 states have call successors, (1629), 397 states have call predecessors, (1629), 397 states have return successors, (1669), 1616 states have call predecessors, (1669), 1628 states have call successors, (1669) [2022-07-14 00:21:12,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 9668 transitions. [2022-07-14 00:21:12,987 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 9668 transitions. Word has length 38 [2022-07-14 00:21:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:12,987 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 9668 transitions. [2022-07-14 00:21:12,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 00:21:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 9668 transitions. [2022-07-14 00:21:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-14 00:21:13,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:13,003 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-14 00:21:13,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:21:13,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:21:13,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -915869094, now seen corresponding path program 1 times [2022-07-14 00:21:13,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:21:13,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150581415] [2022-07-14 00:21:13,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:13,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:21:13,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:21:13,239 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) [2022-07-14 00:21:13,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:21:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:23,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:21:23,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 00:21:24,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:24,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:21:24,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150581415] [2022-07-14 00:21:24,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150581415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:24,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:21:24,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:21:24,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062177141] [2022-07-14 00:21:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:24,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:21:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:21:24,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:21:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:24,090 INFO L87 Difference]: Start difference. First operand 6928 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:21:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:25,789 INFO L93 Difference]: Finished difference Result 19528 states and 27122 transitions. [2022-07-14 00:21:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:21:25,789 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), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2022-07-14 00:21:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:25,873 INFO L225 Difference]: With dead ends: 19528 [2022-07-14 00:21:25,874 INFO L226 Difference]: Without dead ends: 12608 [2022-07-14 00:21:25,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:25,909 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1987 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:25,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5221 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 00:21:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-07-14 00:21:26,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12486. [2022-07-14 00:21:26,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 8841 states have (on average 1.2943105983486032) internal successors, (11443), 9010 states have internal predecessors, (11443), 2899 states have call successors, (2899), 749 states have call predecessors, (2899), 745 states have return successors, (2969), 2862 states have call predecessors, (2969), 2898 states have call successors, (2969) [2022-07-14 00:21:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 17311 transitions. [2022-07-14 00:21:26,904 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 17311 transitions. Word has length 147 [2022-07-14 00:21:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:26,906 INFO L495 AbstractCegarLoop]: Abstraction has 12486 states and 17311 transitions. [2022-07-14 00:21:26,907 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), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:21:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 17311 transitions. [2022-07-14 00:21:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-14 00:21:26,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:26,920 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:21:27,183 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2022-07-14 00:21:27,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:21:27,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:21:27,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:27,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:27,218 INFO L85 PathProgramCache]: Analyzing trace with hash 79837402, now seen corresponding path program 1 times [2022-07-14 00:21:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:21:27,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308313946] [2022-07-14 00:21:27,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:27,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:21:27,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:21:27,238 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) [2022-07-14 00:21:27,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:21:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:33,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:21:33,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-14 00:21:33,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:33,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:21:33,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308313946] [2022-07-14 00:21:33,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308313946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:33,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:21:33,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:21:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907354245] [2022-07-14 00:21:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:33,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:21:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:21:33,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:21:33,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:33,787 INFO L87 Difference]: Start difference. First operand 12486 states and 17311 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:21:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:36,078 INFO L93 Difference]: Finished difference Result 32612 states and 45079 transitions. [2022-07-14 00:21:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:21:36,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-14 00:21:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:36,394 INFO L225 Difference]: With dead ends: 32612 [2022-07-14 00:21:36,405 INFO L226 Difference]: Without dead ends: 20130 [2022-07-14 00:21:36,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:36,504 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 1753 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:36,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 6089 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 00:21:36,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20130 states. [2022-07-14 00:21:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20130 to 20096. [2022-07-14 00:21:37,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20096 states, 14259 states have (on average 1.2925170068027212) internal successors, (18430), 14535 states have internal predecessors, (18430), 4591 states have call successors, (4591), 1250 states have call predecessors, (4591), 1245 states have return successors, (4694), 4542 states have call predecessors, (4694), 4590 states have call successors, (4694) [2022-07-14 00:21:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20096 states to 20096 states and 27715 transitions. [2022-07-14 00:21:37,999 INFO L78 Accepts]: Start accepts. Automaton has 20096 states and 27715 transitions. Word has length 157 [2022-07-14 00:21:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:37,999 INFO L495 AbstractCegarLoop]: Abstraction has 20096 states and 27715 transitions. [2022-07-14 00:21:37,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:21:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 20096 states and 27715 transitions. [2022-07-14 00:21:38,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-14 00:21:38,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:38,013 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1] [2022-07-14 00:21:38,235 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-14 00:21:38,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:21:38,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:21:38,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1663908607, now seen corresponding path program 1 times [2022-07-14 00:21:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:21:38,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740540826] [2022-07-14 00:21:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:38,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:21:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:21:38,342 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) [2022-07-14 00:21:38,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:21:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:48,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:21:48,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-14 00:21:48,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:48,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:21:48,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740540826] [2022-07-14 00:21:48,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740540826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:48,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:21:48,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:21:48,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269202770] [2022-07-14 00:21:48,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:48,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:21:48,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:21:48,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:21:48,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:48,580 INFO L87 Difference]: Start difference. First operand 20096 states and 27715 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 00:21:50,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:50,868 INFO L93 Difference]: Finished difference Result 48376 states and 66581 transitions. [2022-07-14 00:21:50,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:21:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-07-14 00:21:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:51,408 INFO L225 Difference]: With dead ends: 48376 [2022-07-14 00:21:51,409 INFO L226 Difference]: Without dead ends: 28288 [2022-07-14 00:21:51,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:21:51,580 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:51,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5433 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:21:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-14 00:21:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 28232. [2022-07-14 00:21:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 20059 states have (on average 1.2894959868388254) internal successors, (25866), 20451 states have internal predecessors, (25866), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:21:53,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 38737 transitions. [2022-07-14 00:21:54,289 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 38737 transitions. Word has length 173 [2022-07-14 00:21:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:54,289 INFO L495 AbstractCegarLoop]: Abstraction has 28232 states and 38737 transitions. [2022-07-14 00:21:54,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 00:21:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 38737 transitions. [2022-07-14 00:21:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-14 00:21:54,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:54,347 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:21:54,579 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-14 00:21:54,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 137 [2022-07-14 00:21:54,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:21:54,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1881706839, now seen corresponding path program 1 times [2022-07-14 00:21:54,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:21:54,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360558819] [2022-07-14 00:21:54,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:54,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:21:54,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:21:54,767 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) [2022-07-14 00:21:54,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:22:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:22:03,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 5629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:22:03,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:22:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 00:22:03,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:22:03,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:22:03,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360558819] [2022-07-14 00:22:03,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360558819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:22:03,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:22:03,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:22:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612362566] [2022-07-14 00:22:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:22:03,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:22:03,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:22:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:22:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:22:03,709 INFO L87 Difference]: Start difference. First operand 28232 states and 38737 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:22:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:22:07,454 INFO L93 Difference]: Finished difference Result 67128 states and 92145 transitions. [2022-07-14 00:22:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:22:07,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-14 00:22:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:22:07,977 INFO L225 Difference]: With dead ends: 67128 [2022-07-14 00:22:07,983 INFO L226 Difference]: Without dead ends: 38912 [2022-07-14 00:22:08,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:22:08,247 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 2472 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 11381 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:22:08,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 11381 Invalid, 194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 00:22:08,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38912 states. [2022-07-14 00:22:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38912 to 28248. [2022-07-14 00:22:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:22:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-14 00:22:11,580 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 190 [2022-07-14 00:22:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:22:11,582 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-14 00:22:11,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:22:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-14 00:22:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-14 00:22:11,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:22:11,643 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:22:11,879 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-14 00:22:12,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 137 [2022-07-14 00:22:12,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:22:12,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:22:12,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:22:12,053 INFO L85 PathProgramCache]: Analyzing trace with hash -355262749, now seen corresponding path program 1 times [2022-07-14 00:22:12,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:22:12,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954931587] [2022-07-14 00:22:12,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:22:12,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:22:12,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:22:12,060 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) [2022-07-14 00:22:12,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:22:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:22:20,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 5682 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:22:20,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:22:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 00:22:21,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:22:21,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:22:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954931587] [2022-07-14 00:22:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954931587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:22:21,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:22:21,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:22:21,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330610095] [2022-07-14 00:22:21,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:22:21,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:22:21,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:22:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:22:21,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:22:21,009 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:22:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:22:24,152 INFO L93 Difference]: Finished difference Result 67168 states and 92185 transitions. [2022-07-14 00:22:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:22:24,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2022-07-14 00:22:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:22:24,720 INFO L225 Difference]: With dead ends: 67168 [2022-07-14 00:22:24,720 INFO L226 Difference]: Without dead ends: 38936 [2022-07-14 00:22:24,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:22:24,959 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 2472 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:22:24,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 10485 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 00:22:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38936 states. [2022-07-14 00:22:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38936 to 28248. [2022-07-14 00:22:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:22:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-14 00:22:28,284 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 202 [2022-07-14 00:22:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:22:28,290 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-14 00:22:28,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:22:28,290 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-14 00:22:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-14 00:22:28,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:22:28,356 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:22:28,572 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-07-14 00:22:28,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 137 [2022-07-14 00:22:28,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:22:28,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:22:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:22:28,672 INFO L85 PathProgramCache]: Analyzing trace with hash -998761700, now seen corresponding path program 1 times [2022-07-14 00:22:28,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:22:28,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855781519] [2022-07-14 00:22:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:22:28,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:22:28,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:22:28,708 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) [2022-07-14 00:22:28,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:22:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:22:38,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 5959 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:22:38,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:22:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-14 00:22:39,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:22:39,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:22:39,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855781519] [2022-07-14 00:22:39,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855781519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:22:39,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:22:39,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:22:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028282591] [2022-07-14 00:22:39,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:22:39,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:22:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:22:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:22:39,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:22:39,246 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 00:22:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:22:40,120 INFO L93 Difference]: Finished difference Result 56480 states and 77488 transitions. [2022-07-14 00:22:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:22:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 241 [2022-07-14 00:22:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:22:40,379 INFO L225 Difference]: With dead ends: 56480 [2022-07-14 00:22:40,379 INFO L226 Difference]: Without dead ends: 28248 [2022-07-14 00:22:40,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:22:40,617 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2411 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 [2022-07-14 00:22:40,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2411 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:22:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2022-07-14 00:22:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 28248. [2022-07-14 00:22:41,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2888667496886674) internal successors, (25874), 20467 states have internal predecessors, (25874), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:22:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38745 transitions. [2022-07-14 00:22:41,898 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38745 transitions. Word has length 241 [2022-07-14 00:22:41,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:22:41,899 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38745 transitions. [2022-07-14 00:22:41,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 00:22:41,899 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38745 transitions. [2022-07-14 00:22:41,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-14 00:22:41,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:22:41,939 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:22:42,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:22:42,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:22:42,160 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:22:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:22:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash 736352434, now seen corresponding path program 1 times [2022-07-14 00:22:42,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:22:42,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491623295] [2022-07-14 00:22:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:22:42,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:22:42,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:22:42,172 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) [2022-07-14 00:22:42,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:22:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:22:52,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 6015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:22:52,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:22:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-14 00:22:52,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:22:52,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:22:52,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491623295] [2022-07-14 00:22:52,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491623295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:22:52,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:22:52,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:22:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114922177] [2022-07-14 00:22:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:22:52,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:22:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:22:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:22:52,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:22:52,975 INFO L87 Difference]: Start difference. First operand 28248 states and 38745 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:22:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:22:54,143 INFO L93 Difference]: Finished difference Result 56488 states and 77488 transitions. [2022-07-14 00:22:54,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:22:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-14 00:22:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:22:54,478 INFO L225 Difference]: With dead ends: 56488 [2022-07-14 00:22:54,479 INFO L226 Difference]: Without dead ends: 28256 [2022-07-14 00:22:54,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:22:54,748 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:22:54,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:22:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-14 00:22:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-14 00:22:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.288751680525818) internal successors, (25882), 20475 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:22:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38753 transitions. [2022-07-14 00:22:55,997 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38753 transitions. Word has length 253 [2022-07-14 00:22:55,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:22:55,999 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38753 transitions. [2022-07-14 00:22:55,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:22:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38753 transitions. [2022-07-14 00:22:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-14 00:22:56,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:22:56,034 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:22:56,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:22:56,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:22:56,256 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:22:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:22:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1263746484, now seen corresponding path program 1 times [2022-07-14 00:22:56,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:22:56,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037114905] [2022-07-14 00:22:56,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:22:56,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:22:56,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:22:56,309 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) [2022-07-14 00:22:56,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:23:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:06,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:23:06,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:23:07,726 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-14 00:23:07,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:23:07,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:23:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037114905] [2022-07-14 00:23:07,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037114905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:07,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:07,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:23:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402085035] [2022-07-14 00:23:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:23:07,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:23:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:23:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:23:07,733 INFO L87 Difference]: Start difference. First operand 28256 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:23:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:23:08,682 INFO L93 Difference]: Finished difference Result 56496 states and 77632 transitions. [2022-07-14 00:23:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:23:08,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-14 00:23:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:23:09,085 INFO L225 Difference]: With dead ends: 56496 [2022-07-14 00:23:09,085 INFO L226 Difference]: Without dead ends: 28256 [2022-07-14 00:23:09,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:23:09,200 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2338 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:23:09,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 2404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:23:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-14 00:23:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-14 00:23:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.2857640790718519) internal successors, (25822), 20475 states have internal predecessors, (25822), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-14 00:23:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38693 transitions. [2022-07-14 00:23:10,814 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38693 transitions. Word has length 253 [2022-07-14 00:23:10,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:23:10,814 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38693 transitions. [2022-07-14 00:23:10,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:23:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38693 transitions. [2022-07-14 00:23:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-14 00:23:10,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:23:10,859 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:23:11,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:23:11,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:23:11,127 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:23:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:23:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1912339254, now seen corresponding path program 1 times [2022-07-14 00:23:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:23:11,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970277594] [2022-07-14 00:23:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:23:11,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:23:11,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:23:11,147 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) [2022-07-14 00:23:11,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:23:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:21,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 00:23:21,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:23:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-14 00:23:22,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:23:22,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:23:22,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970277594] [2022-07-14 00:23:22,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970277594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:22,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:22,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:23:22,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786895397] [2022-07-14 00:23:22,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:22,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:23:22,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:23:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:23:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:23:22,210 INFO L87 Difference]: Start difference. First operand 28256 states and 38693 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:23:24,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:27,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:23:29,347 INFO L93 Difference]: Finished difference Result 60436 states and 83406 transitions. [2022-07-14 00:23:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:23:29,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-14 00:23:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:23:29,718 INFO L225 Difference]: With dead ends: 60436 [2022-07-14 00:23:29,719 INFO L226 Difference]: Without dead ends: 32196 [2022-07-14 00:23:29,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:23:29,820 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 2280 mSDsluCounter, 16453 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:23:29,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 19384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-07-14 00:23:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32196 states. [2022-07-14 00:23:30,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32196 to 28312. [2022-07-14 00:23:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 20131 states have (on average 1.285082708260891) internal successors, (25870), 20523 states have internal predecessors, (25870), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1813 states have return successors, (6552), 6310 states have call predecessors, (6552), 6366 states have call successors, (6552) [2022-07-14 00:23:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 38789 transitions. [2022-07-14 00:23:31,019 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 38789 transitions. Word has length 253 [2022-07-14 00:23:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:23:31,020 INFO L495 AbstractCegarLoop]: Abstraction has 28312 states and 38789 transitions. [2022-07-14 00:23:31,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:23:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 38789 transitions. [2022-07-14 00:23:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-14 00:23:31,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:23:31,034 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:23:31,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 00:23:31,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:23:31,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:23:31,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:23:31,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2144538835, now seen corresponding path program 1 times [2022-07-14 00:23:31,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:23:31,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595764020] [2022-07-14 00:23:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:23:31,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:23:31,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:23:31,280 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) [2022-07-14 00:23:31,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:23:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:41,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 6034 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 00:23:41,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:23:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-14 00:23:41,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:23:41,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:23:41,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595764020] [2022-07-14 00:23:41,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595764020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:41,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:41,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:23:41,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883123749] [2022-07-14 00:23:41,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:41,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:23:41,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:23:41,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:23:41,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:23:41,818 INFO L87 Difference]: Start difference. First operand 28312 states and 38789 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-14 00:23:44,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:46,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:47,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:23:47,508 INFO L93 Difference]: Finished difference Result 56528 states and 77476 transitions. [2022-07-14 00:23:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:23:47,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 259 [2022-07-14 00:23:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:23:47,626 INFO L225 Difference]: With dead ends: 56528 [2022-07-14 00:23:47,626 INFO L226 Difference]: Without dead ends: 28232 [2022-07-14 00:23:47,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:23:47,713 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 7 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14435 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:23:47,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14435 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 00:23:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28232 states. [2022-07-14 00:23:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28232 to 28200. [2022-07-14 00:23:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 20043 states have (on average 1.284139100932994) internal successors, (25738), 20435 states have internal predecessors, (25738), 6347 states have call successors, (6347), 1806 states have call predecessors, (6347), 1809 states have return successors, (6532), 6290 states have call predecessors, (6532), 6346 states have call successors, (6532) [2022-07-14 00:23:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 38617 transitions. [2022-07-14 00:23:48,897 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 38617 transitions. Word has length 259 [2022-07-14 00:23:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:23:48,897 INFO L495 AbstractCegarLoop]: Abstraction has 28200 states and 38617 transitions. [2022-07-14 00:23:48,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-14 00:23:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 38617 transitions. [2022-07-14 00:23:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-14 00:23:48,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:23:48,909 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:23:49,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 00:23:49,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:23:49,131 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:23:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:23:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash -770997336, now seen corresponding path program 1 times [2022-07-14 00:23:49,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:23:49,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801774491] [2022-07-14 00:23:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:23:49,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:23:49,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:23:49,140 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) [2022-07-14 00:23:49,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 00:23:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:56,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 5948 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:23:56,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:23:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-14 00:23:59,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:23:59,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:23:59,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801774491] [2022-07-14 00:23:59,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801774491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:59,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:59,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:23:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584498666] [2022-07-14 00:23:59,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:59,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:23:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:23:59,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:23:59,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:23:59,520 INFO L87 Difference]: Start difference. First operand 28200 states and 38617 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 00:24:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:24:11,397 INFO L93 Difference]: Finished difference Result 84632 states and 115991 transitions. [2022-07-14 00:24:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:24:11,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 290 [2022-07-14 00:24:11,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:24:11,674 INFO L225 Difference]: With dead ends: 84632 [2022-07-14 00:24:11,674 INFO L226 Difference]: Without dead ends: 56448 [2022-07-14 00:24:11,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:24:11,782 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 2320 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 9107 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:24:11,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 9107 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-07-14 00:24:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56448 states. [2022-07-14 00:24:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56448 to 56440. [2022-07-14 00:24:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56440 states, 40107 states have (on average 1.2835664597202483) internal successors, (51480), 40915 states have internal predecessors, (51480), 12691 states have call successors, (12691), 3610 states have call predecessors, (12691), 3641 states have return successors, (13146), 12578 states have call predecessors, (13146), 12690 states have call successors, (13146) [2022-07-14 00:24:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56440 states to 56440 states and 77317 transitions. [2022-07-14 00:24:13,859 INFO L78 Accepts]: Start accepts. Automaton has 56440 states and 77317 transitions. Word has length 290 [2022-07-14 00:24:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:24:13,860 INFO L495 AbstractCegarLoop]: Abstraction has 56440 states and 77317 transitions. [2022-07-14 00:24:13,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 00:24:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 56440 states and 77317 transitions. [2022-07-14 00:24:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-14 00:24:13,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:24:13,874 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:24:14,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 00:24:14,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:24:14,088 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:24:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:24:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1844112455, now seen corresponding path program 1 times [2022-07-14 00:24:14,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:24:14,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056895207] [2022-07-14 00:24:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:24:14,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:24:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:24:14,104 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) [2022-07-14 00:24:14,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 00:24:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:21,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 5950 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:24:21,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:24:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-14 00:24:24,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:24:24,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:24:24,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056895207] [2022-07-14 00:24:24,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056895207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:24:24,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:24:24,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:24:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859484959] [2022-07-14 00:24:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:24:24,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:24:24,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:24:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:24:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:24:24,069 INFO L87 Difference]: Start difference. First operand 56440 states and 77317 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29)