./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN --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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:42:42,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:42:42,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:42:42,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:42:42,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:42:42,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:42:42,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:42:42,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:42:42,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:42:42,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:42:42,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:42:42,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:42:42,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:42:42,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:42:42,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:42:42,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:42:42,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:42:42,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:42:42,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:42:42,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:42:42,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:42:42,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:42:42,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:42:42,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:42:42,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:42:42,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:42:42,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:42:42,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:42:42,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:42:42,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:42:42,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:42:42,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:42:42,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:42:42,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:42:42,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:42:42,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:42:42,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:42:42,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:42:42,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:42:42,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:42:42,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:42:42,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:42:42,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:42:42,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:42:42,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:42:42,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:42:42,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:42:42,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:42:42,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:42:42,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:42:42,519 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:42:42,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:42:42,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:42:42,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:42:42,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:42:42,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:42:42,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:42:42,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:42:42,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:42:42,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:42:42,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:42:42,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:42:42,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:42:42,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:42,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:42:42,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:42:42,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:42:42,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:42:42,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:42:42,526 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:42:42,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:42:42,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:42:42,528 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-11-20 12:42:42,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:42:42,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:42:42,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:42:42,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:42:42,924 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:42:42,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 12:42:46,573 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:42:47,443 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:42:47,444 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 12:42:47,529 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/ce57fa96e/419ddeb88df8468e8d03f4f2a5d5c929/FLAGd0685585c [2022-11-20 12:42:47,554 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/ce57fa96e/419ddeb88df8468e8d03f4f2a5d5c929 [2022-11-20 12:42:47,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:42:47,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:42:47,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:47,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:42:47,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:42:47,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:47" (1/1) ... [2022-11-20 12:42:47,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6c357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:47, skipping insertion in model container [2022-11-20 12:42:47,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:47" (1/1) ... [2022-11-20 12:42:47,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:42:47,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:42:50,498 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 12:42:50,506 INFO L158 Benchmark]: Toolchain (without parser) took 2944.02ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 107.9MB in the end (delta: 31.6MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2022-11-20 12:42:50,507 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:42:50,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2939.39ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 107.9MB in the end (delta: 31.6MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2022-11-20 12:42:50,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory was 103.5MB in the beginning and 103.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2939.39ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 107.9MB in the end (delta: 31.6MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN --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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:42:53,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:42:53,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:42:53,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:42:53,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:42:53,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:42:53,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:42:53,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:42:53,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:42:53,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:42:53,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:42:53,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:42:53,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:42:53,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:42:53,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:42:53,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:42:53,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:42:53,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:42:53,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:42:53,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:42:53,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:42:53,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:42:53,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:42:53,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:42:53,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:42:53,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:42:53,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:42:53,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:42:53,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:42:53,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:42:53,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:42:53,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:42:53,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:42:53,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:42:53,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:42:53,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:42:53,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:42:53,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:42:53,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:42:53,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:42:53,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:42:53,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:42:53,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:42:53,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:42:53,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:42:53,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:42:53,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:42:53,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:42:53,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:42:53,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:42:53,477 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:42:53,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:42:53,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:42:53,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:42:53,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:42:53,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:42:53,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:42:53,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:42:53,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:42:53,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:42:53,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:42:53,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:42:53,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:42:53,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:42:53,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:42:53,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:42:53,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:42:53,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:42:53,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:42:53,484 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:42:53,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:42:53,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:42:53,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:42:53,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:42:53,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:42:53,486 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-11-20 12:42:53,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:42:54,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:42:54,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:42:54,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:42:54,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:42:54,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 12:42:58,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:42:58,945 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:42:58,946 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 12:42:59,030 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/ec45caf6f/b02ce35884624bfd94c35f186940b6ed/FLAGf9546ec0c [2022-11-20 12:42:59,068 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/data/ec45caf6f/b02ce35884624bfd94c35f186940b6ed [2022-11-20 12:42:59,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:42:59,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:42:59,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:42:59,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:42:59,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:42:59,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:59" (1/1) ... [2022-11-20 12:42:59,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401f158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:42:59, skipping insertion in model container [2022-11-20 12:42:59,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:42:59" (1/1) ... [2022-11-20 12:42:59,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:42:59,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:43:02,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-11-20 12:43:03,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:03,275 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:43:03,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:43:03,974 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-11-20 12:43:03,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:04,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:43:05,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-11-20 12:43:05,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:05,326 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:43:05,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05 WrapperNode [2022-11-20 12:43:05,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:43:05,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:05,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:43:05,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:43:05,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:05,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:05,869 INFO L138 Inliner]: procedures = 494, calls = 4035, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7188 [2022-11-20 12:43:05,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:05,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:43:05,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:43:05,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:43:05,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:05,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:05,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:05,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:43:06,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:43:06,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:43:06,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:43:06,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (1/1) ... [2022-11-20 12:43:06,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:43:06,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:06,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:06,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:43:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-11-20 12:43:06,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-11-20 12:43:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-11-20 12:43:06,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-11-20 12:43:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-20 12:43:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-20 12:43:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:43:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:43:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:43:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:43:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-11-20 12:43:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-11-20 12:43:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-11-20 12:43:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-11-20 12:43:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-20 12:43:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-20 12:43:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-11-20 12:43:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-11-20 12:43:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-11-20 12:43:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-11-20 12:43:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-11-20 12:43:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-11-20 12:43:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-11-20 12:43:06,449 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-11-20 12:43:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-11-20 12:43:06,449 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-11-20 12:43:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-11-20 12:43:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-11-20 12:43:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 12:43:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 12:43:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-11-20 12:43:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-11-20 12:43:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 12:43:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 12:43:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 12:43:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 12:43:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2022-11-20 12:43:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2022-11-20 12:43:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-11-20 12:43:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-11-20 12:43:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:43:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-11-20 12:43:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-11-20 12:43:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-11-20 12:43:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-11-20 12:43:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:43:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:43:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:43:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 12:43:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 12:43:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-11-20 12:43:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-11-20 12:43:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-11-20 12:43:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-11-20 12:43:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-11-20 12:43:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-11-20 12:43:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-20 12:43:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-20 12:43:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-11-20 12:43:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-11-20 12:43:06,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2022-11-20 12:43:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2022-11-20 12:43:06,459 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-11-20 12:43:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-11-20 12:43:06,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:43:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:43:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-11-20 12:43:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-11-20 12:43:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-20 12:43:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-20 12:43:06,460 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-20 12:43:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-20 12:43:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-11-20 12:43:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-11-20 12:43:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-11-20 12:43:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-11-20 12:43:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-11-20 12:43:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-11-20 12:43:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-11-20 12:43:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-11-20 12:43:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 12:43:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 12:43:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-11-20 12:43:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-11-20 12:43:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:43:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:43:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-11-20 12:43:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-11-20 12:43:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:43:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-11-20 12:43:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-11-20 12:43:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 12:43:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 12:43:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:43:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:43:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:43:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:43:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:43:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-11-20 12:43:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-11-20 12:43:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-11-20 12:43:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-11-20 12:43:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-11-20 12:43:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-11-20 12:43:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 12:43:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 12:43:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:43:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:43:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 12:43:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 12:43:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:43:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2022-11-20 12:43:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2022-11-20 12:43:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-11-20 12:43:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-11-20 12:43:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:43:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:43:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 12:43:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 12:43:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-11-20 12:43:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-11-20 12:43:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:43:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-11-20 12:43:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-11-20 12:43:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 12:43:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 12:43:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-11-20 12:43:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-11-20 12:43:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-11-20 12:43:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-11-20 12:43:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:43:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:43:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:43:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:43:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:43:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:43:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:43:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-11-20 12:43:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-11-20 12:43:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-11-20 12:43:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-11-20 12:43:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-11-20 12:43:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-11-20 12:43:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-11-20 12:43:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-11-20 12:43:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-20 12:43:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-20 12:43:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-11-20 12:43:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-11-20 12:43:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-11-20 12:43:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-11-20 12:43:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 12:43:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 12:43:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-11-20 12:43:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-11-20 12:43:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:43:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:43:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:43:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:43:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-11-20 12:43:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-11-20 12:43:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-11-20 12:43:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-11-20 12:43:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-20 12:43:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-20 12:43:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:43:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:43:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-11-20 12:43:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-11-20 12:43:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-11-20 12:43:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-11-20 12:43:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-11-20 12:43:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-11-20 12:43:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 12:43:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 12:43:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-11-20 12:43:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-11-20 12:43:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-11-20 12:43:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-11-20 12:43:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-11-20 12:43:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-11-20 12:43:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-20 12:43:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-20 12:43:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-11-20 12:43:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-11-20 12:43:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:43:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 12:43:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 12:43:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-11-20 12:43:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-11-20 12:43:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-11-20 12:43:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-11-20 12:43:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-11-20 12:43:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-11-20 12:43:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:43:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 12:43:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-20 12:43:06,492 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:43:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:43:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-11-20 12:43:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-11-20 12:43:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-11-20 12:43:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-11-20 12:43:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-11-20 12:43:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-11-20 12:43:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 12:43:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 12:43:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 12:43:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 12:43:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 12:43:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 12:43:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-11-20 12:43:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-11-20 12:43:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 12:43:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 12:43:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-11-20 12:43:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-11-20 12:43:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 12:43:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 12:43:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-11-20 12:43:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-11-20 12:43:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-11-20 12:43:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-11-20 12:43:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-11-20 12:43:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-11-20 12:43:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-11-20 12:43:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-11-20 12:43:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 12:43:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 12:43:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-11-20 12:43:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-11-20 12:43:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-11-20 12:43:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-11-20 12:43:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-11-20 12:43:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-11-20 12:43:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-11-20 12:43:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-11-20 12:43:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:43:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:43:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-11-20 12:43:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-11-20 12:43:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:43:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:43:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:43:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:43:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:43:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:43:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-11-20 12:43:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-11-20 12:43:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-11-20 12:43:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-11-20 12:43:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-11-20 12:43:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-11-20 12:43:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-11-20 12:43:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-11-20 12:43:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-11-20 12:43:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-11-20 12:43:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-11-20 12:43:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-11-20 12:43:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-11-20 12:43:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-11-20 12:43:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-11-20 12:43:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-11-20 12:43:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-11-20 12:43:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-11-20 12:43:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-11-20 12:43:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-11-20 12:43:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-11-20 12:43:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-11-20 12:43:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-11-20 12:43:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-11-20 12:43:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 12:43:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 12:43:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-11-20 12:43:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-11-20 12:43:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-20 12:43:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-20 12:43:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-11-20 12:43:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-11-20 12:43:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-11-20 12:43:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-11-20 12:43:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-11-20 12:43:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-11-20 12:43:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-11-20 12:43:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-11-20 12:43:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-11-20 12:43:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-11-20 12:43:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-11-20 12:43:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-11-20 12:43:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-11-20 12:43:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-11-20 12:43:08,037 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:43:08,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:43:09,347 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:45:11,157 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:45:11,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:45:11,182 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:45:11,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:11 BoogieIcfgContainer [2022-11-20 12:45:11,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:45:11,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:45:11,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:45:11,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:45:11,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:42:59" (1/3) ... [2022-11-20 12:45:11,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a506e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:45:11, skipping insertion in model container [2022-11-20 12:45:11,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:05" (2/3) ... [2022-11-20 12:45:11,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a506e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:45:11, skipping insertion in model container [2022-11-20 12:45:11,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:45:11" (3/3) ... [2022-11-20 12:45:11,200 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-11-20 12:45:11,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:45:11,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:45:11,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:45:11,397 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@457ea41b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:45:11,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:45:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 2499 states, 1664 states have (on average 1.3233173076923077) internal successors, (2202), 1711 states have internal predecessors, (2202), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-11-20 12:45:11,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 12:45:11,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:11,435 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, 1, 1, 1, 1] [2022-11-20 12:45:11,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1106000251, now seen corresponding path program 1 times [2022-11-20 12:45:11,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:11,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700097160] [2022-11-20 12:45:11,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:11,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:11,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:11,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:11,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:45:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:13,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:45:13,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:13,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:13,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:13,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700097160] [2022-11-20 12:45:13,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700097160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:13,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:13,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:45:13,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149029750] [2022-11-20 12:45:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:13,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:45:13,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:13,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:45:13,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:45:13,810 INFO L87 Difference]: Start difference. First operand has 2499 states, 1664 states have (on average 1.3233173076923077) internal successors, (2202), 1711 states have internal predecessors, (2202), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:14,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:14,187 INFO L93 Difference]: Finished difference Result 4993 states and 7459 transitions. [2022-11-20 12:45:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:45:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-11-20 12:45:14,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:14,243 INFO L225 Difference]: With dead ends: 4993 [2022-11-20 12:45:14,244 INFO L226 Difference]: Without dead ends: 2486 [2022-11-20 12:45:14,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:45:14,293 INFO L413 NwaCegarLoop]: 3584 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:14,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3584 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:45:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2022-11-20 12:45:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2022-11-20 12:45:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 1659 states have (on average 1.3188667872212176) internal successors, (2188), 1698 states have internal predecessors, (2188), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2022-11-20 12:45:14,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3567 transitions. [2022-11-20 12:45:14,681 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3567 transitions. Word has length 35 [2022-11-20 12:45:14,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:14,681 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 3567 transitions. [2022-11-20 12:45:14,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3567 transitions. [2022-11-20 12:45:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 12:45:14,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:14,688 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, 1, 1, 1, 1] [2022-11-20 12:45:14,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:14,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:14,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1240013757, now seen corresponding path program 1 times [2022-11-20 12:45:14,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252585693] [2022-11-20 12:45:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:14,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:14,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:14,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:45:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:16,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:16,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:17,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:17,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:17,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252585693] [2022-11-20 12:45:17,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252585693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:17,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:17,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:17,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653063968] [2022-11-20 12:45:17,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:17,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:17,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:17,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:17,169 INFO L87 Difference]: Start difference. First operand 2486 states and 3567 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:17,989 INFO L93 Difference]: Finished difference Result 7386 states and 10672 transitions. [2022-11-20 12:45:17,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:17,990 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-11-20 12:45:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:18,040 INFO L225 Difference]: With dead ends: 7386 [2022-11-20 12:45:18,041 INFO L226 Difference]: Without dead ends: 4908 [2022-11-20 12:45:18,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:18,063 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 3474 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3474 SdHoareTripleChecker+Valid, 7836 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:18,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3474 Valid, 7836 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:45:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2022-11-20 12:45:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 4886. [2022-11-20 12:45:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 3262 states have (on average 1.3200490496627835) internal successors, (4306), 3334 states have internal predecessors, (4306), 1366 states have call successors, (1366), 263 states have call predecessors, (1366), 257 states have return successors, (1380), 1338 states have call predecessors, (1380), 1355 states have call successors, (1380) [2022-11-20 12:45:18,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 7052 transitions. [2022-11-20 12:45:18,537 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 7052 transitions. Word has length 35 [2022-11-20 12:45:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:18,538 INFO L495 AbstractCegarLoop]: Abstraction has 4886 states and 7052 transitions. [2022-11-20 12:45:18,538 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 7052 transitions. [2022-11-20 12:45:18,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:45:18,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:18,547 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, 1, 1, 1, 1, 1] [2022-11-20 12:45:18,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:18,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:18,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:18,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:18,773 INFO L85 PathProgramCache]: Analyzing trace with hash 239696532, now seen corresponding path program 1 times [2022-11-20 12:45:18,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:18,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291756845] [2022-11-20 12:45:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:18,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:18,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:18,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:45:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:20,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:20,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:20,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:20,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:20,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291756845] [2022-11-20 12:45:20,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291756845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:20,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:20,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:20,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733216224] [2022-11-20 12:45:20,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:20,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:20,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:20,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:20,874 INFO L87 Difference]: Start difference. First operand 4886 states and 7052 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:21,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:21,753 INFO L93 Difference]: Finished difference Result 12232 states and 17780 transitions. [2022-11-20 12:45:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-20 12:45:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:21,823 INFO L225 Difference]: With dead ends: 12232 [2022-11-20 12:45:21,823 INFO L226 Difference]: Without dead ends: 7354 [2022-11-20 12:45:21,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:21,865 INFO L413 NwaCegarLoop]: 4270 mSDtfsCounter, 3542 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:21,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 7855 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:45:21,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2022-11-20 12:45:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 7332. [2022-11-20 12:45:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7332 states, 4898 states have (on average 1.3189056757860351) internal successors, (6460), 4999 states have internal predecessors, (6460), 2045 states have call successors, (2045), 394 states have call predecessors, (2045), 388 states have return successors, (2122), 2013 states have call predecessors, (2122), 2034 states have call successors, (2122) [2022-11-20 12:45:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7332 states to 7332 states and 10627 transitions. [2022-11-20 12:45:22,514 INFO L78 Accepts]: Start accepts. Automaton has 7332 states and 10627 transitions. Word has length 36 [2022-11-20 12:45:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:22,515 INFO L495 AbstractCegarLoop]: Abstraction has 7332 states and 10627 transitions. [2022-11-20 12:45:22,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:22,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7332 states and 10627 transitions. [2022-11-20 12:45:22,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:45:22,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:22,521 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, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:22,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:22,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:22,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1662840198, now seen corresponding path program 1 times [2022-11-20 12:45:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:22,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410068870] [2022-11-20 12:45:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:22,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:22,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:22,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:45:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:24,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:24,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:24,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:24,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:24,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410068870] [2022-11-20 12:45:24,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410068870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:24,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:24,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223674536] [2022-11-20 12:45:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:24,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:24,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:24,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:24,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:24,767 INFO L87 Difference]: Start difference. First operand 7332 states and 10627 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:26,008 INFO L93 Difference]: Finished difference Result 17121 states and 25023 transitions. [2022-11-20 12:45:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-11-20 12:45:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:26,100 INFO L225 Difference]: With dead ends: 17121 [2022-11-20 12:45:26,100 INFO L226 Difference]: Without dead ends: 9797 [2022-11-20 12:45:26,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:26,161 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 3543 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 7828 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:26,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 7828 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:45:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2022-11-20 12:45:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 9775. [2022-11-20 12:45:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9775 states, 6533 states have (on average 1.3182305219654065) internal successors, (8612), 6663 states have internal predecessors, (8612), 2722 states have call successors, (2722), 525 states have call predecessors, (2722), 519 states have return successors, (2887), 2686 states have call predecessors, (2887), 2711 states have call successors, (2887) [2022-11-20 12:45:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9775 states to 9775 states and 14221 transitions. [2022-11-20 12:45:27,004 INFO L78 Accepts]: Start accepts. Automaton has 9775 states and 14221 transitions. Word has length 37 [2022-11-20 12:45:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:27,004 INFO L495 AbstractCegarLoop]: Abstraction has 9775 states and 14221 transitions. [2022-11-20 12:45:27,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 9775 states and 14221 transitions. [2022-11-20 12:45:27,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:45:27,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:27,007 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, 1, 1, 1, 1, 1] [2022-11-20 12:45:27,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:27,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:27,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:27,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:27,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1828932953, now seen corresponding path program 1 times [2022-11-20 12:45:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:27,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226117388] [2022-11-20 12:45:27,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:27,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:27,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:45:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:28,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:28,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:28,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:28,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:28,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226117388] [2022-11-20 12:45:28,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226117388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:28,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:28,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:28,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369120364] [2022-11-20 12:45:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:28,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:28,978 INFO L87 Difference]: Start difference. First operand 9775 states and 14221 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:30,673 INFO L93 Difference]: Finished difference Result 29243 states and 42555 transitions. [2022-11-20 12:45:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:30,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-11-20 12:45:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:30,821 INFO L225 Difference]: With dead ends: 29243 [2022-11-20 12:45:30,821 INFO L226 Difference]: Without dead ends: 19476 [2022-11-20 12:45:30,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:30,874 INFO L413 NwaCegarLoop]: 4773 mSDtfsCounter, 3525 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:30,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 8314 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:45:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19476 states. [2022-11-20 12:45:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19476 to 19468. [2022-11-20 12:45:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19468 states, 13005 states have (on average 1.3175701653210303) internal successors, (17135), 13255 states have internal predecessors, (17135), 5424 states have call successors, (5424), 1049 states have call predecessors, (5424), 1038 states have return successors, (5765), 5363 states have call predecessors, (5765), 5413 states have call successors, (5765) [2022-11-20 12:45:32,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19468 states to 19468 states and 28324 transitions. [2022-11-20 12:45:32,689 INFO L78 Accepts]: Start accepts. Automaton has 19468 states and 28324 transitions. Word has length 36 [2022-11-20 12:45:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:32,690 INFO L495 AbstractCegarLoop]: Abstraction has 19468 states and 28324 transitions. [2022-11-20 12:45:32,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 19468 states and 28324 transitions. [2022-11-20 12:45:32,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 12:45:32,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:32,692 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:32,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:32,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:32,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1811228317, now seen corresponding path program 1 times [2022-11-20 12:45:32,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:32,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557478726] [2022-11-20 12:45:32,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:32,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:32,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:32,902 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:32,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:45:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:34,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:34,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:34,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:34,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:34,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557478726] [2022-11-20 12:45:34,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557478726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:34,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:34,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:34,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961374416] [2022-11-20 12:45:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:34,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:34,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:34,600 INFO L87 Difference]: Start difference. First operand 19468 states and 28324 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:36,185 INFO L93 Difference]: Finished difference Result 38912 states and 56603 transitions. [2022-11-20 12:45:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:36,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-20 12:45:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:36,305 INFO L225 Difference]: With dead ends: 38912 [2022-11-20 12:45:36,306 INFO L226 Difference]: Without dead ends: 19452 [2022-11-20 12:45:36,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:36,396 INFO L413 NwaCegarLoop]: 3562 mSDtfsCounter, 3552 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:36,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3552 Valid, 3562 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:45:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19452 states. [2022-11-20 12:45:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19452 to 19452. [2022-11-20 12:45:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19452 states, 12997 states have (on average 1.317150111564207) internal successors, (17119), 13247 states have internal predecessors, (17119), 5416 states have call successors, (5416), 1049 states have call predecessors, (5416), 1038 states have return successors, (5745), 5355 states have call predecessors, (5745), 5405 states have call successors, (5745) [2022-11-20 12:45:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19452 states to 19452 states and 28280 transitions. [2022-11-20 12:45:38,510 INFO L78 Accepts]: Start accepts. Automaton has 19452 states and 28280 transitions. Word has length 38 [2022-11-20 12:45:38,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:38,511 INFO L495 AbstractCegarLoop]: Abstraction has 19452 states and 28280 transitions. [2022-11-20 12:45:38,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:38,512 INFO L276 IsEmpty]: Start isEmpty. Operand 19452 states and 28280 transitions. [2022-11-20 12:45:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 12:45:38,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:38,514 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:38,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:38,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:38,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1040852117, now seen corresponding path program 1 times [2022-11-20 12:45:38,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:38,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356612583] [2022-11-20 12:45:38,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:38,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:38,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:38,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:38,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:45:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:40,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:40,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:40,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:40,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:40,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356612583] [2022-11-20 12:45:40,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356612583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:40,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:40,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:40,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257780916] [2022-11-20 12:45:40,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:40,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:40,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:40,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:40,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:40,542 INFO L87 Difference]: Start difference. First operand 19452 states and 28280 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:42,711 INFO L93 Difference]: Finished difference Result 43551 states and 63805 transitions. [2022-11-20 12:45:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-20 12:45:42,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:42,858 INFO L225 Difference]: With dead ends: 43551 [2022-11-20 12:45:42,859 INFO L226 Difference]: Without dead ends: 24107 [2022-11-20 12:45:42,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:42,955 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 3540 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 7818 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:42,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 7818 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:45:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24107 states. [2022-11-20 12:45:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24107 to 24085. [2022-11-20 12:45:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24085 states, 16098 states have (on average 1.3165610634861473) internal successors, (21194), 16400 states have internal predecessors, (21194), 6690 states have call successors, (6690), 1307 states have call predecessors, (6690), 1296 states have return successors, (7125), 6623 states have call predecessors, (7125), 6679 states have call successors, (7125) [2022-11-20 12:45:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24085 states to 24085 states and 35009 transitions. [2022-11-20 12:45:45,556 INFO L78 Accepts]: Start accepts. Automaton has 24085 states and 35009 transitions. Word has length 38 [2022-11-20 12:45:45,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:45,557 INFO L495 AbstractCegarLoop]: Abstraction has 24085 states and 35009 transitions. [2022-11-20 12:45:45,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 24085 states and 35009 transitions. [2022-11-20 12:45:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 12:45:45,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:45,558 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:45,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:45,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:45,784 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1531446698, now seen corresponding path program 1 times [2022-11-20 12:45:45,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:45,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513985089] [2022-11-20 12:45:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:45,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:45,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:45,790 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:45,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:45:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:47,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:47,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:47,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:47,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:47,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513985089] [2022-11-20 12:45:47,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513985089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:47,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:47,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762087329] [2022-11-20 12:45:47,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:47,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:47,666 INFO L87 Difference]: Start difference. First operand 24085 states and 35009 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:49,913 INFO L93 Difference]: Finished difference Result 48142 states and 69959 transitions. [2022-11-20 12:45:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:49,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-20 12:45:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:50,064 INFO L225 Difference]: With dead ends: 48142 [2022-11-20 12:45:50,064 INFO L226 Difference]: Without dead ends: 24065 [2022-11-20 12:45:50,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:50,354 INFO L413 NwaCegarLoop]: 3558 mSDtfsCounter, 3547 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:50,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3547 Valid, 3558 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:45:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24065 states. [2022-11-20 12:45:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24065 to 24065. [2022-11-20 12:45:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24065 states, 16088 states have (on average 1.3161362506215812) internal successors, (21174), 16390 states have internal predecessors, (21174), 6680 states have call successors, (6680), 1307 states have call predecessors, (6680), 1296 states have return successors, (7095), 6613 states have call predecessors, (7095), 6669 states have call successors, (7095) [2022-11-20 12:45:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24065 states to 24065 states and 34949 transitions. [2022-11-20 12:45:53,096 INFO L78 Accepts]: Start accepts. Automaton has 24065 states and 34949 transitions. Word has length 39 [2022-11-20 12:45:53,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:45:53,097 INFO L495 AbstractCegarLoop]: Abstraction has 24065 states and 34949 transitions. [2022-11-20 12:45:53,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:45:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand 24065 states and 34949 transitions. [2022-11-20 12:45:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 12:45:53,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:45:53,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:45:53,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:45:53,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:53,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:45:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:45:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash 15630693, now seen corresponding path program 1 times [2022-11-20 12:45:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:45:53,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781251175] [2022-11-20 12:45:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:45:53,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:45:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:45:53,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:45:53,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:45:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:45:55,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:45:55,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:45:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:45:55,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:45:55,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:45:55,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781251175] [2022-11-20 12:45:55,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781251175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:45:55,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:45:55,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:45:55,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005818638] [2022-11-20 12:45:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:45:55,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:45:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:45:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:45:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:55,322 INFO L87 Difference]: Start difference. First operand 24065 states and 34949 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:45:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:45:58,368 INFO L93 Difference]: Finished difference Result 65171 states and 94170 transitions. [2022-11-20 12:45:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:45:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-11-20 12:45:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:45:58,592 INFO L225 Difference]: With dead ends: 65171 [2022-11-20 12:45:58,592 INFO L226 Difference]: Without dead ends: 41114 [2022-11-20 12:45:58,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:45:58,715 INFO L413 NwaCegarLoop]: 4953 mSDtfsCounter, 2510 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 8488 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:45:58,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 8488 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:45:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41114 states. [2022-11-20 12:46:02,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41114 to 41089. [2022-11-20 12:46:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41089 states, 27439 states have (on average 1.3129851670979262) internal successors, (36027), 27951 states have internal predecessors, (36027), 11275 states have call successors, (11275), 2395 states have call predecessors, (11275), 2374 states have return successors, (11890), 11154 states have call predecessors, (11890), 11264 states have call successors, (11890) [2022-11-20 12:46:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41089 states to 41089 states and 59192 transitions. [2022-11-20 12:46:02,451 INFO L78 Accepts]: Start accepts. Automaton has 41089 states and 59192 transitions. Word has length 41 [2022-11-20 12:46:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:02,452 INFO L495 AbstractCegarLoop]: Abstraction has 41089 states and 59192 transitions. [2022-11-20 12:46:02,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 12:46:02,452 INFO L276 IsEmpty]: Start isEmpty. Operand 41089 states and 59192 transitions. [2022-11-20 12:46:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 12:46:02,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:02,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:46:02,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:46:02,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:02,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1977066534, now seen corresponding path program 1 times [2022-11-20 12:46:02,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:02,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126336414] [2022-11-20 12:46:02,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:02,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:02,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:02,670 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:02,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5420f061-85ce-4838-861d-f663aa73456c/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:46:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:04,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:46:04,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:46:04,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:04,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:04,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126336414] [2022-11-20 12:46:04,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126336414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:04,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:04,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:46:04,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714973834] [2022-11-20 12:46:04,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:04,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:46:04,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:04,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:46:04,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:04,357 INFO L87 Difference]: Start difference. First operand 41089 states and 59192 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:46:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:07,599 INFO L93 Difference]: Finished difference Result 82130 states and 118275 transitions. [2022-11-20 12:46:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:46:07,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-11-20 12:46:07,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:07,806 INFO L225 Difference]: With dead ends: 82130 [2022-11-20 12:46:07,806 INFO L226 Difference]: Without dead ends: 41049 [2022-11-20 12:46:08,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:46:08,215 INFO L413 NwaCegarLoop]: 3554 mSDtfsCounter, 3542 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:08,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 3554 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:46:08,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41049 states.