./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- 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 11:06:52,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:52,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:52,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:52,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:52,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:52,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:52,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:52,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:52,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:52,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:52,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:52,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:52,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:52,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:52,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:52,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:52,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:52,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:52,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:52,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:52,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:52,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:52,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:52,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:52,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:52,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:52,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:52,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:52,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:52,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:52,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:52,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:52,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:52,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:52,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:52,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:52,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:52,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:52,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:52,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:52,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:06:52,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:52,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:52,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:52,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:52,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:52,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:52,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:52,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:52,495 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:52,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:52,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:52,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:52,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:52,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:52,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:52,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:52,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:52,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:52,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:52,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:52,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:52,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:52,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:52,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:52,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:52,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:52,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:52,503 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:52,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:52,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:52,505 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2022-11-20 11:06:52,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:52,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:52,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:52,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:52,971 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:52,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:06:56,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:57,496 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:57,497 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:06:57,575 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/a07ba2c81/6e4ec84a03ed4836a2a39b9648a6c643/FLAG3d4c7003a [2022-11-20 11:06:57,604 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/a07ba2c81/6e4ec84a03ed4836a2a39b9648a6c643 [2022-11-20 11:06:57,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:57,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:57,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:57,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:57,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:57,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:57" (1/1) ... [2022-11-20 11:06:57,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e945096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:57, skipping insertion in model container [2022-11-20 11:06:57,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:57" (1/1) ... [2022-11-20 11:06:57,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:57,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:58,950 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.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) 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:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) 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 11:06:58,962 INFO L158 Benchmark]: Toolchain (without parser) took 1349.39ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 121.8MB in the beginning and 167.6MB in the end (delta: -45.8MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-11-20 11:06:58,962 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 176.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:06:58,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1345.00ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 121.8MB in the beginning and 167.6MB in the end (delta: -45.8MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-11-20 11:06:58,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 176.2MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1345.00ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 121.8MB in the beginning and 167.6MB in the end (delta: -45.8MB). Peak memory consumption was 76.8MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- 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 11:07:01,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:07:01,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:07:01,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:07:01,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:07:01,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:07:01,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:07:01,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:07:01,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:07:01,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:07:01,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:07:01,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:07:01,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:07:01,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:07:01,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:07:01,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:07:01,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:07:01,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:07:01,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:07:01,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:07:01,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:07:01,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:07:01,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:07:01,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:07:01,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:07:01,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:07:01,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:07:01,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:07:01,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:07:01,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:07:01,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:07:01,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:07:01,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:07:01,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:07:01,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:07:01,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:07:01,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:07:01,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:07:01,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:07:01,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:07:01,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:07:01,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:07:01,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:07:01,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:07:01,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:07:01,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:07:01,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:07:01,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:07:01,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:07:01,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:07:01,951 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:07:01,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:07:01,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:07:01,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:07:01,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:07:01,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:07:01,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:07:01,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:07:01,953 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:07:01,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:07:01,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:07:01,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:07:01,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:07:01,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:07:01,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:07:01,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:07:01,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:07:01,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:07:01,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:07:01,956 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:07:01,957 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:07:01,957 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:07:01,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:07:01,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:07:01,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:07:01,958 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2022-11-20 11:07:02,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:07:02,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:07:02,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:07:02,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:07:02,442 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:07:02,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:07:06,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:07:07,081 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:07:07,082 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:07:07,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/b29dc3a24/fc3c4b445a2a40899fec81f2d28773cd/FLAGa3e4590c4 [2022-11-20 11:07:07,192 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/data/b29dc3a24/fc3c4b445a2a40899fec81f2d28773cd [2022-11-20 11:07:07,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:07:07,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:07:07,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:07:07,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:07:07,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:07:07,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:07" (1/1) ... [2022-11-20 11:07:07,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2458fe78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:07, skipping insertion in model container [2022-11-20 11:07:07,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:07" (1/1) ... [2022-11-20 11:07:07,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:07:07,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:07:13,442 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-20 11:07:13,448 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-20 11:07:13,449 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-20 11:07:13,450 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-20 11:07:13,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:07:13,569 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:07:13,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:07:14,425 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-20 11:07:14,426 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-20 11:07:14,426 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-20 11:07:14,427 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-20 11:07:14,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:07:14,474 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:07:15,243 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-20 11:07:15,244 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-20 11:07:15,244 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-20 11:07:15,245 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_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-20 11:07:15,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:07:15,688 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:07:15,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15 WrapperNode [2022-11-20 11:07:15,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:07:15,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:07:15,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:07:15,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:07:15,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:15,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,204 INFO L138 Inliner]: procedures = 596, calls = 3848, calls flagged for inlining = 356, calls inlined = 344, statements flattened = 9886 [2022-11-20 11:07:16,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:07:16,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:07:16,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:07:16,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:07:16,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:07:16,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:07:16,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:07:16,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:07:16,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (1/1) ... [2022-11-20 11:07:16,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:07:16,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:07:16,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:07:16,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:07:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:07:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:07:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-20 11:07:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-20 11:07:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-20 11:07:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-20 11:07:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-20 11:07:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-20 11:07:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-20 11:07:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-20 11:07:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:07:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:07:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:07:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:07:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:07:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:07:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:07:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:07:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-20 11:07:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-20 11:07:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-20 11:07:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-20 11:07:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:07:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:07:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:07:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:07:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:07:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-20 11:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-20 11:07:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:07:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:07:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-20 11:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-20 11:07:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-20 11:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-20 11:07:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-20 11:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-20 11:07:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:07:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:07:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:07:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 11:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 11:07:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:07:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:07:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-20 11:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-20 11:07:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:07:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 11:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 11:07:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 11:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 11:07:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:07:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 11:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 11:07:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-20 11:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-20 11:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-20 11:07:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-20 11:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-20 11:07:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-20 11:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:07:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 11:07:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 11:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-20 11:07:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-20 11:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-20 11:07:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-20 11:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-20 11:07:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-20 11:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-20 11:07:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-20 11:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:07:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:07:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-20 11:07:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-20 11:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:07:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:07:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:07:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:07:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:07:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-20 11:07:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-20 11:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:07:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:07:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:07:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-20 11:07:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-20 11:07:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:07:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:07:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:07:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:07:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:07:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 11:07:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 11:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 11:07:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 11:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 11:07:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 11:07:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:07:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:07:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:07:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:07:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:07:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-20 11:07:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-20 11:07:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 11:07:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 11:07:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:07:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:07:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:07:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:07:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:07:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:07:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-20 11:07:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-20 11:07:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-20 11:07:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-20 11:07:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 11:07:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 11:07:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-20 11:07:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-20 11:07:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-20 11:07:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-20 11:07:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 11:07:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 11:07:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:07:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:07:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-20 11:07:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-20 11:07:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:07:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:07:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-20 11:07:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-20 11:07:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-20 11:07:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-20 11:07:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-20 11:07:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-20 11:07:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-20 11:07:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-20 11:07:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:07:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:07:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:07:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:07:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:07:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-20 11:07:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-20 11:07:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-20 11:07:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-20 11:07:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-20 11:07:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-20 11:07:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-20 11:07:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-20 11:07:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-20 11:07:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-20 11:07:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:07:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:07:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-20 11:07:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-20 11:07:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 11:07:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 11:07:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:07:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:07:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:07:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:07:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:07:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:07:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:07:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:07:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:07:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:07:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:07:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:07:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-20 11:07:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-20 11:07:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 11:07:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 11:07:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:07:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:07:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-20 11:07:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-20 11:07:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-20 11:07:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-20 11:07:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 11:07:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 11:07:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-20 11:07:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-20 11:07:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 11:07:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 11:07:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-20 11:07:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-20 11:07:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-20 11:07:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-20 11:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:07:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:07:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-20 11:07:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-20 11:07:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 11:07:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 11:07:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-20 11:07:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-20 11:07:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 11:07:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 11:07:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:07:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:07:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:07:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-20 11:07:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-20 11:07:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-20 11:07:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-20 11:07:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-20 11:07:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-20 11:07:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-20 11:07:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-20 11:07:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:07:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:07:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-20 11:07:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-20 11:07:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:07:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-20 11:07:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-20 11:07:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-20 11:07:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-20 11:07:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:07:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:07:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-20 11:07:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-20 11:07:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 11:07:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 11:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-20 11:07:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-20 11:07:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 11:07:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 11:07:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 11:07:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 11:07:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 11:07:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 11:07:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-20 11:07:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-20 11:07:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:07:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:07:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:07:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:07:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:07:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-20 11:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-20 11:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 11:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 11:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-20 11:07:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-20 11:07:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-20 11:07:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-20 11:07:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-20 11:07:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-20 11:07:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:07:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:07:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:07:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:07:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-20 11:07:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-20 11:07:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 11:07:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 11:07:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-20 11:07:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-20 11:07:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:07:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:07:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-20 11:07:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-20 11:07:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:07:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:07:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-20 11:07:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-20 11:07:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-20 11:07:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-20 11:07:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 11:07:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 11:07:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:07:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-20 11:07:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-20 11:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-20 11:07:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-20 11:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:07:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:07:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 11:07:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 11:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-20 11:07:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-20 11:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 11:07:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 11:07:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-20 11:07:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-20 11:07:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-20 11:07:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-20 11:07:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-20 11:07:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-20 11:07:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-20 11:07:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-20 11:07:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:07:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:07:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 11:07:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 11:07:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-20 11:07:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-20 11:07:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-20 11:07:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-20 11:07:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 11:07:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 11:07:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 11:07:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 11:07:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 11:07:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 11:07:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:07:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:07:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-20 11:07:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-20 11:07:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:07:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:07:19,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:07:19,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:07:20,345 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:08:25,435 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:08:29,094 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:08:29,125 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:08:29,126 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:08:29,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:29 BoogieIcfgContainer [2022-11-20 11:08:29,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:08:29,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:08:29,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:08:29,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:08:29,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:07:07" (1/3) ... [2022-11-20 11:08:29,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6793ec46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:29, skipping insertion in model container [2022-11-20 11:08:29,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:15" (2/3) ... [2022-11-20 11:08:29,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6793ec46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:08:29, skipping insertion in model container [2022-11-20 11:08:29,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:08:29" (3/3) ... [2022-11-20 11:08:29,153 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:08:29,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:08:29,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:08:29,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:08:29,335 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;@2a243ad2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:08:29,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:08:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 4013 states, 2730 states have (on average 1.2626373626373626) internal successors, (3447), 2769 states have internal predecessors, (3447), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) [2022-11-20 11:08:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-20 11:08:29,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:29,429 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:29,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:29,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:29,439 INFO L85 PathProgramCache]: Analyzing trace with hash -64273515, now seen corresponding path program 1 times [2022-11-20 11:08:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:29,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333229747] [2022-11-20 11:08:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:29,467 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 11:08:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:29,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:29,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:32,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:32,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-11-20 11:08:32,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:32,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:32,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333229747] [2022-11-20 11:08:32,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333229747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:32,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:32,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:32,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350578985] [2022-11-20 11:08:32,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:32,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:32,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:32,632 INFO L87 Difference]: Start difference. First operand has 4013 states, 2730 states have (on average 1.2626373626373626) internal successors, (3447), 2769 states have internal predecessors, (3447), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 11:08:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:34,091 INFO L93 Difference]: Finished difference Result 11859 states and 16973 transitions. [2022-11-20 11:08:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:34,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 216 [2022-11-20 11:08:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:34,206 INFO L225 Difference]: With dead ends: 11859 [2022-11-20 11:08:34,206 INFO L226 Difference]: Without dead ends: 7869 [2022-11-20 11:08:34,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 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 11:08:34,257 INFO L413 NwaCegarLoop]: 6739 mSDtfsCounter, 5510 mSDsluCounter, 5596 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:34,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 12335 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:08:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-11-20 11:08:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7867. [2022-11-20 11:08:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7867 states, 5363 states have (on average 1.256572813723662) internal successors, (6739), 5440 states have internal predecessors, (6739), 2185 states have call successors, (2185), 318 states have call predecessors, (2185), 317 states have return successors, (2182), 2164 states have call predecessors, (2182), 2182 states have call successors, (2182) [2022-11-20 11:08:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7867 states to 7867 states and 11106 transitions. [2022-11-20 11:08:35,246 INFO L78 Accepts]: Start accepts. Automaton has 7867 states and 11106 transitions. Word has length 216 [2022-11-20 11:08:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:35,251 INFO L495 AbstractCegarLoop]: Abstraction has 7867 states and 11106 transitions. [2022-11-20 11:08:35,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 11:08:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7867 states and 11106 transitions. [2022-11-20 11:08:35,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 11:08:35,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:35,274 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:35,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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)] Ended with exit code 0 [2022-11-20 11:08:35,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:35,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash 627026037, now seen corresponding path program 1 times [2022-11-20 11:08:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:35,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264936847] [2022-11-20 11:08:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:35,500 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 11:08:35,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:35,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:35,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:38,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:38,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2022-11-20 11:08:38,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:38,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:38,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264936847] [2022-11-20 11:08:38,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264936847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:38,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:38,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852865765] [2022-11-20 11:08:38,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:38,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:38,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:38,951 INFO L87 Difference]: Start difference. First operand 7867 states and 11106 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 11:08:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:40,674 INFO L93 Difference]: Finished difference Result 18761 states and 26432 transitions. [2022-11-20 11:08:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:40,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 234 [2022-11-20 11:08:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:40,789 INFO L225 Difference]: With dead ends: 18761 [2022-11-20 11:08:40,790 INFO L226 Difference]: Without dead ends: 10933 [2022-11-20 11:08:40,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 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 11:08:40,845 INFO L413 NwaCegarLoop]: 6603 mSDtfsCounter, 4884 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 12162 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:40,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 12162 Invalid, 92 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:08:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10933 states. [2022-11-20 11:08:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10933 to 10924. [2022-11-20 11:08:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10924 states, 7452 states have (on average 1.2525496511003757) internal successors, (9334), 7556 states have internal predecessors, (9334), 3006 states have call successors, (3006), 466 states have call predecessors, (3006), 464 states have return successors, (3003), 2973 states have call predecessors, (3003), 3003 states have call successors, (3003) [2022-11-20 11:08:42,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10924 states to 10924 states and 15343 transitions. [2022-11-20 11:08:42,096 INFO L78 Accepts]: Start accepts. Automaton has 10924 states and 15343 transitions. Word has length 234 [2022-11-20 11:08:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:42,098 INFO L495 AbstractCegarLoop]: Abstraction has 10924 states and 15343 transitions. [2022-11-20 11:08:42,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 11:08:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 10924 states and 15343 transitions. [2022-11-20 11:08:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 11:08:42,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:42,109 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:42,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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)] Ended with exit code 0 [2022-11-20 11:08:42,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:42,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -809431163, now seen corresponding path program 1 times [2022-11-20 11:08:42,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:42,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899386280] [2022-11-20 11:08:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:42,328 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 11:08:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:42,335 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:42,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:45,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:45,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2022-11-20 11:08:45,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:45,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:45,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899386280] [2022-11-20 11:08:45,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899386280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:45,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:45,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:45,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164782310] [2022-11-20 11:08:45,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:45,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:45,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:45,661 INFO L87 Difference]: Start difference. First operand 10924 states and 15343 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:08:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:47,357 INFO L93 Difference]: Finished difference Result 29041 states and 40801 transitions. [2022-11-20 11:08:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:47,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 248 [2022-11-20 11:08:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:47,536 INFO L225 Difference]: With dead ends: 29041 [2022-11-20 11:08:47,536 INFO L226 Difference]: Without dead ends: 18156 [2022-11-20 11:08:47,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 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 11:08:47,611 INFO L413 NwaCegarLoop]: 6710 mSDtfsCounter, 5447 mSDsluCounter, 5585 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 12295 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:47,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5447 Valid, 12295 Invalid, 62 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:08:47,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18156 states. [2022-11-20 11:08:49,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18156 to 18143. [2022-11-20 11:08:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18143 states, 12378 states have (on average 1.2514137986750686) internal successors, (15490), 12560 states have internal predecessors, (15490), 4993 states have call successors, (4993), 773 states have call predecessors, (4993), 770 states have return successors, (4990), 4931 states have call predecessors, (4990), 4990 states have call successors, (4990) [2022-11-20 11:08:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18143 states to 18143 states and 25473 transitions. [2022-11-20 11:08:49,796 INFO L78 Accepts]: Start accepts. Automaton has 18143 states and 25473 transitions. Word has length 248 [2022-11-20 11:08:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:49,797 INFO L495 AbstractCegarLoop]: Abstraction has 18143 states and 25473 transitions. [2022-11-20 11:08:49,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:08:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 18143 states and 25473 transitions. [2022-11-20 11:08:49,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 11:08:49,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:49,818 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:49,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:50,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:50,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1207991541, now seen corresponding path program 1 times [2022-11-20 11:08:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:50,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524076723] [2022-11-20 11:08:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:50,038 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 11:08:50,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:50,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:50,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:52,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:52,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-11-20 11:08:53,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:53,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:53,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524076723] [2022-11-20 11:08:53,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524076723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:53,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:53,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:53,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496871512] [2022-11-20 11:08:53,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:53,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:53,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:53,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:53,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:53,121 INFO L87 Difference]: Start difference. First operand 18143 states and 25473 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-20 11:08:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:55,574 INFO L93 Difference]: Finished difference Result 47384 states and 66581 transitions. [2022-11-20 11:08:55,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 274 [2022-11-20 11:08:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:55,820 INFO L225 Difference]: With dead ends: 47384 [2022-11-20 11:08:55,820 INFO L226 Difference]: Without dead ends: 32629 [2022-11-20 11:08:55,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 272 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 11:08:55,905 INFO L413 NwaCegarLoop]: 10802 mSDtfsCounter, 5467 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5467 SdHoareTripleChecker+Valid, 16399 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:55,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5467 Valid, 16399 Invalid, 40 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:08:55,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32629 states. [2022-11-20 11:08:59,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32629 to 32627. [2022-11-20 11:08:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32627 states, 22272 states have (on average 1.251885775862069) internal successors, (27882), 22588 states have internal predecessors, (27882), 8971 states have call successors, (8971), 1385 states have call predecessors, (8971), 1382 states have return successors, (8968), 8875 states have call predecessors, (8968), 8968 states have call successors, (8968) [2022-11-20 11:08:59,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32627 states to 32627 states and 45821 transitions. [2022-11-20 11:08:59,581 INFO L78 Accepts]: Start accepts. Automaton has 32627 states and 45821 transitions. Word has length 274 [2022-11-20 11:08:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:59,582 INFO L495 AbstractCegarLoop]: Abstraction has 32627 states and 45821 transitions. [2022-11-20 11:08:59,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-20 11:08:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 32627 states and 45821 transitions. [2022-11-20 11:08:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 11:08:59,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:59,599 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:59,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:59,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:59,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:59,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1145951927, now seen corresponding path program 1 times [2022-11-20 11:08:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:59,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620357749] [2022-11-20 11:08:59,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:59,820 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 11:08:59,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:59,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:08:59,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:02,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:09:02,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2022-11-20 11:09:05,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:05,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620357749] [2022-11-20 11:09:05,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620357749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:05,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:05,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:09:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427326222] [2022-11-20 11:09:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:05,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:09:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:09:05,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:09:05,245 INFO L87 Difference]: Start difference. First operand 32627 states and 45821 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 11:09:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:07,431 INFO L93 Difference]: Finished difference Result 32627 states and 45821 transitions. [2022-11-20 11:09:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:09:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 274 [2022-11-20 11:09:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:07,655 INFO L225 Difference]: With dead ends: 32627 [2022-11-20 11:09:07,656 INFO L226 Difference]: Without dead ends: 32572 [2022-11-20 11:09:07,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:09:07,689 INFO L413 NwaCegarLoop]: 5626 mSDtfsCounter, 5514 mSDsluCounter, 5626 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5514 SdHoareTripleChecker+Valid, 11252 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:07,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5514 Valid, 11252 Invalid, 4 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:09:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32572 states. [2022-11-20 11:09:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32572 to 32572. [2022-11-20 11:09:11,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32572 states, 22247 states have (on average 1.2516294331820021) internal successors, (27845), 22551 states have internal predecessors, (27845), 8944 states have call successors, (8944), 1380 states have call predecessors, (8944), 1380 states have return successors, (8944), 8862 states have call predecessors, (8944), 8944 states have call successors, (8944) [2022-11-20 11:09:11,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32572 states to 32572 states and 45733 transitions. [2022-11-20 11:09:11,832 INFO L78 Accepts]: Start accepts. Automaton has 32572 states and 45733 transitions. Word has length 274 [2022-11-20 11:09:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:11,833 INFO L495 AbstractCegarLoop]: Abstraction has 32572 states and 45733 transitions. [2022-11-20 11:09:11,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 11:09:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 32572 states and 45733 transitions. [2022-11-20 11:09:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-20 11:09:11,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:11,874 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:11,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:12,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:12,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:12,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:12,100 INFO L85 PathProgramCache]: Analyzing trace with hash -279272300, now seen corresponding path program 1 times [2022-11-20 11:09:12,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:12,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417471222] [2022-11-20 11:09:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:12,105 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 11:09:12,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:12,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:12,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:15,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:09:15,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2022-11-20 11:09:15,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:15,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:15,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417471222] [2022-11-20 11:09:15,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417471222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:15,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:15,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:15,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369521414] [2022-11-20 11:09:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:15,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:15,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:15,791 INFO L87 Difference]: Start difference. First operand 32572 states and 45733 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:09:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:19,075 INFO L93 Difference]: Finished difference Result 75438 states and 105923 transitions. [2022-11-20 11:09:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:19,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 300 [2022-11-20 11:09:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:19,371 INFO L225 Difference]: With dead ends: 75438 [2022-11-20 11:09:19,371 INFO L226 Difference]: Without dead ends: 46254 [2022-11-20 11:09:19,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 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 11:09:19,510 INFO L413 NwaCegarLoop]: 10333 mSDtfsCounter, 4839 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 15862 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:19,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 15862 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:09:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46254 states. [2022-11-20 11:09:24,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46254 to 46250. [2022-11-20 11:09:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46250 states, 31593 states have (on average 1.250815053967651) internal successors, (39517), 32021 states have internal predecessors, (39517), 12676 states have call successors, (12676), 1980 states have call predecessors, (12676), 1980 states have return successors, (12676), 12558 states have call predecessors, (12676), 12676 states have call successors, (12676) [2022-11-20 11:09:24,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46250 states to 46250 states and 64869 transitions. [2022-11-20 11:09:24,631 INFO L78 Accepts]: Start accepts. Automaton has 46250 states and 64869 transitions. Word has length 300 [2022-11-20 11:09:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:24,632 INFO L495 AbstractCegarLoop]: Abstraction has 46250 states and 64869 transitions. [2022-11-20 11:09:24,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:09:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 46250 states and 64869 transitions. [2022-11-20 11:09:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-20 11:09:24,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:24,727 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:24,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:24,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:24,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:24,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1449622566, now seen corresponding path program 1 times [2022-11-20 11:09:24,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:24,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412312574] [2022-11-20 11:09:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:24,948 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 11:09:24,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:24,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:24,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:27,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:09:27,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2022-11-20 11:09:27,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:27,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:27,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412312574] [2022-11-20 11:09:27,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412312574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:27,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:27,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952456514] [2022-11-20 11:09:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:27,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:27,971 INFO L87 Difference]: Start difference. First operand 46250 states and 64869 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 11:09:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:32,545 INFO L93 Difference]: Finished difference Result 110391 states and 154877 transitions. [2022-11-20 11:09:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:32,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 328 [2022-11-20 11:09:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:32,937 INFO L225 Difference]: With dead ends: 110391 [2022-11-20 11:09:32,937 INFO L226 Difference]: Without dead ends: 64124 [2022-11-20 11:09:33,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 326 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 11:09:33,190 INFO L413 NwaCegarLoop]: 11069 mSDtfsCounter, 5463 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 16644 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:33,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 16644 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:09:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64124 states. [2022-11-20 11:09:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64124 to 64122. [2022-11-20 11:09:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64122 states, 43789 states have (on average 1.2512046404348125) internal successors, (54789), 44381 states have internal predecessors, (54789), 17589 states have call successors, (17589), 2743 states have call predecessors, (17589), 2743 states have return successors, (17589), 17429 states have call predecessors, (17589), 17589 states have call successors, (17589) [2022-11-20 11:09:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64122 states to 64122 states and 89967 transitions. [2022-11-20 11:09:39,106 INFO L78 Accepts]: Start accepts. Automaton has 64122 states and 89967 transitions. Word has length 328 [2022-11-20 11:09:39,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:39,107 INFO L495 AbstractCegarLoop]: Abstraction has 64122 states and 89967 transitions. [2022-11-20 11:09:39,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 11:09:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 64122 states and 89967 transitions. [2022-11-20 11:09:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 11:09:39,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:39,210 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:39,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:39,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:39,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash -630399154, now seen corresponding path program 1 times [2022-11-20 11:09:39,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:39,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361948935] [2022-11-20 11:09:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:39,440 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 11:09:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:39,442 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:39,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98d229a0-8bf2-4dea-8bb6-5b0167fcbb00/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 11:09:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:42,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:09:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 405 proven. 3 refuted. 0 times theorem prover too weak. 1363 trivial. 0 not checked. [2022-11-20 11:09:44,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:09:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 1699 trivial. 0 not checked. [2022-11-20 11:09:45,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:45,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361948935] [2022-11-20 11:09:45,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361948935] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:09:45,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:09:45,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-11-20 11:09:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898097709] [2022-11-20 11:09:45,872 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:09:45,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:09:45,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:45,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:09:45,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:09:45,876 INFO L87 Difference]: Start difference. First operand 64122 states and 89967 transitions. Second operand has 22 states, 21 states have (on average 7.0) internal successors, (147), 20 states have internal predecessors, (147), 6 states have call successors, (48), 3 states have call predecessors, (48), 8 states have return successors, (48), 7 states have call predecessors, (48), 6 states have call successors, (48)