./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- 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 11:04:13,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:04:13,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:04:13,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:04:13,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:04:13,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:04:13,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:04:13,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:04:13,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:04:13,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:04:13,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:04:13,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:04:13,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:04:13,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:04:13,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:04:13,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:04:13,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:04:13,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:04:13,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:04:13,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:04:13,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:04:13,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:04:13,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:04:13,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:04:13,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:04:13,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:04:13,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:04:13,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:04:13,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:04:13,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:04:13,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:04:13,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:04:13,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:04:13,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:04:13,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:04:13,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:04:13,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:04:13,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:04:13,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:04:13,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:04:13,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:04:13,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:04:13,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:04:13,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:04:13,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:04:13,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:04:13,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:04:13,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:04:13,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:04:13,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:04:13,389 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:04:13,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:04:13,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:04:13,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:04:13,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:04:13,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:04:13,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:04:13,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:04:13,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:04:13,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:04:13,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:04:13,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:04:13,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:04:13,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:13,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:04:13,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:04:13,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:04:13,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:04:13,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:04:13,393 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:04:13,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:04:13,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:04:13,394 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-20 11:04:13,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:04:13,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:04:13,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:04:13,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:04:13,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:04:13,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-20 11:04:16,785 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:04:17,521 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:04:17,522 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-20 11:04:17,601 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/cf090eb2f/a9b784c037c842ab975ad41e056ca0a0/FLAGfb144027d [2022-11-20 11:04:17,622 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/cf090eb2f/a9b784c037c842ab975ad41e056ca0a0 [2022-11-20 11:04:17,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:04:17,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:04:17,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:17,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:04:17,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:04:17,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:17" (1/1) ... [2022-11-20 11:04:17,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b5e270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:17, skipping insertion in model container [2022-11-20 11:04:17,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:17" (1/1) ... [2022-11-20 11:04:17,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:04:17,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:04:18,702 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 11:04:18,709 INFO L158 Benchmark]: Toolchain (without parser) took 1081.36ms. Allocated memory is still 161.5MB. Free memory was 115.1MB in the beginning and 92.8MB in the end (delta: 22.3MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-11-20 11:04:18,710 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:04:18,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1071.58ms. Allocated memory is still 161.5MB. Free memory was 114.3MB in the beginning and 92.8MB in the end (delta: 21.5MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-11-20 11:04:18,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1071.58ms. Allocated memory is still 161.5MB. Free memory was 114.3MB in the beginning and 92.8MB in the end (delta: 21.5MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- 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 11:04:20,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:04:20,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:04:20,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:04:20,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:04:20,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:04:20,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:04:21,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:04:21,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:04:21,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:04:21,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:04:21,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:04:21,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:04:21,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:04:21,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:04:21,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:04:21,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:04:21,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:04:21,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:04:21,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:04:21,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:04:21,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:04:21,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:04:21,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:04:21,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:04:21,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:04:21,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:04:21,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:04:21,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:04:21,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:04:21,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:04:21,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:04:21,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:04:21,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:04:21,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:04:21,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:04:21,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:04:21,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:04:21,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:04:21,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:04:21,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:04:21,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:04:21,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:04:21,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:04:21,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:04:21,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:04:21,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:04:21,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:04:21,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:04:21,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:04:21,096 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:04:21,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:04:21,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:04:21,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:04:21,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:04:21,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:04:21,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:04:21,098 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:04:21,098 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:04:21,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:04:21,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:04:21,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:04:21,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:04:21,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:04:21,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:04:21,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:21,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:04:21,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:04:21,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:04:21,101 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:04:21,101 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:04:21,102 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:04:21,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:04:21,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:04:21,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:04:21,103 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-20 11:04:21,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:04:21,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:04:21,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:04:21,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:04:21,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:04:21,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-20 11:04:24,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:04:25,394 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:04:25,394 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-20 11:04:25,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/ced784490/f6c46d7bc89647c2a988de472af8ab0e/FLAG106a497be [2022-11-20 11:04:25,549 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/data/ced784490/f6c46d7bc89647c2a988de472af8ab0e [2022-11-20 11:04:25,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:04:25,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:04:25,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:25,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:04:25,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:04:25,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:25" (1/1) ... [2022-11-20 11:04:25,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47de01f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:25, skipping insertion in model container [2022-11-20 11:04:25,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:04:25" (1/1) ... [2022-11-20 11:04:25,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:04:25,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:04:30,756 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-20 11:04:30,761 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-20 11:04:30,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:30,890 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:04:30,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:04:31,741 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-20 11:04:31,742 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-20 11:04:31,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:31,782 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:04:32,506 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-20 11:04:32,507 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_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-20 11:04:32,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:04:32,921 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:04:32,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32 WrapperNode [2022-11-20 11:04:32,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:04:32,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:32,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:04:32,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:04:32,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,482 INFO L138 Inliner]: procedures = 588, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 11857 [2022-11-20 11:04:33,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:04:33,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:04:33,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:04:33,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:04:33,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:33,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:04:33,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:04:33,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:04:33,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:04:33,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (1/1) ... [2022-11-20 11:04:34,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:04:34,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:04:34,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:04:34,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:04:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:04:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:04:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:04:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:04:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:04:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:04:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-20 11:04:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-20 11:04:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:04:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:04:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-20 11:04:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-20 11:04:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:04:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:04:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:04:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:04:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 11:04:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 11:04:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:04:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:04:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-20 11:04:34,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-20 11:04:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-20 11:04:34,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-20 11:04:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-20 11:04:34,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-20 11:04:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-20 11:04:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-20 11:04:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 11:04:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 11:04:34,095 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-20 11:04:34,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-20 11:04:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:04:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:04:34,096 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-20 11:04:34,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-20 11:04:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:04:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:04:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:04:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:04:34,097 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:04:34,097 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:04:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 11:04:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 11:04:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-20 11:04:34,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-20 11:04:34,098 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:04:34,099 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:04:34,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:04:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:04:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:04:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 11:04:34,100 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 11:04:34,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:04:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:04:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:04:34,101 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-20 11:04:34,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-20 11:04:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:04:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:04:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-20 11:04:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-20 11:04:34,102 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:04:34,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:04:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-20 11:04:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-20 11:04:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-20 11:04:34,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-20 11:04:34,103 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:04:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:04:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-20 11:04:34,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-20 11:04:34,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:04:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:04:34,105 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-20 11:04:34,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-20 11:04:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-20 11:04:34,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-20 11:04:34,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:04:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:04:34,107 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-20 11:04:34,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-20 11:04:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:04:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:04:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 11:04:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 11:04:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:04:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:04:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:04:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:04:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-20 11:04:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-20 11:04:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:04:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:04:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:04:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:04:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 11:04:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 11:04:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-20 11:04:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-20 11:04:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 11:04:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 11:04:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:04:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:04:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-20 11:04:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-20 11:04:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-20 11:04:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-20 11:04:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-20 11:04:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-20 11:04:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:04:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 11:04:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 11:04:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 11:04:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 11:04:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:04:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 11:04:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 11:04:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:04:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:04:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:04:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:04:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:04:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:04:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:04:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:04:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:04:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:04:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-20 11:04:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-20 11:04:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-20 11:04:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-20 11:04:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-20 11:04:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-20 11:04:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-20 11:04:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-20 11:04:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-20 11:04:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-20 11:04:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 11:04:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 11:04:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-20 11:04:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-20 11:04:34,131 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 11:04:34,132 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 11:04:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-20 11:04:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-20 11:04:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-20 11:04:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-20 11:04:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 11:04:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 11:04:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:04:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:04:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:04:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:04:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-20 11:04:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-20 11:04:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-20 11:04:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-20 11:04:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-20 11:04:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-20 11:04:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:04:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:04:34,137 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-20 11:04:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-20 11:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:04:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-20 11:04:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-20 11:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:04:34,139 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:04:34,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:04:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:04:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 11:04:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 11:04:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-20 11:04:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-20 11:04:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:04:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:04:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-20 11:04:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-20 11:04:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 11:04:34,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 11:04:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:04:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:04:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:04:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:04:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-20 11:04:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-20 11:04:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-20 11:04:34,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-20 11:04:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 11:04:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 11:04:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 11:04:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 11:04:34,145 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:04:34,145 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:04:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 11:04:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 11:04:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:04:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-20 11:04:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-20 11:04:34,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:04:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:04:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:04:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:04:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:04:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:04:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 11:04:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 11:04:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:04:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:04:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 11:04:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 11:04:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:04:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:04:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:04:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:04:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:04:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:04:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-20 11:04:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-20 11:04:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-20 11:04:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-20 11:04:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 11:04:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 11:04:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-20 11:04:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-20 11:04:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:04:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:04:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:04:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:04:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-20 11:04:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-20 11:04:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:04:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:04:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:04:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:04:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-20 11:04:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-20 11:04:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 11:04:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 11:04:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:04:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:04:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-20 11:04:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-20 11:04:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:04:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:04:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:04:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:04:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:04:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:04:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-20 11:04:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-20 11:04:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:04:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:04:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-20 11:04:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-20 11:04:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 11:04:34,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 11:04:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-20 11:04:34,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-20 11:04:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-20 11:04:34,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-20 11:04:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-20 11:04:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-20 11:04:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 11:04:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 11:04:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-20 11:04:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-20 11:04:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-20 11:04:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-20 11:04:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-20 11:04:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-20 11:04:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-20 11:04:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-20 11:04:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-20 11:04:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-20 11:04:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:04:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:04:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 11:04:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 11:04:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 11:04:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 11:04:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:04:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:04:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:04:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:04:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 11:04:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-20 11:04:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-20 11:04:35,793 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:04:35,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:04:37,393 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:07:06,402 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:07:06,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:07:06,423 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:07:06,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:06 BoogieIcfgContainer [2022-11-20 11:07:06,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:07:06,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:07:06,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:07:06,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:07:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:04:25" (1/3) ... [2022-11-20 11:07:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f38af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:06, skipping insertion in model container [2022-11-20 11:07:06,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:04:32" (2/3) ... [2022-11-20 11:07:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f38af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:06, skipping insertion in model container [2022-11-20 11:07:06,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:06" (3/3) ... [2022-11-20 11:07:06,436 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-20 11:07:06,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:07:06,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:07:06,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:07:06,558 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;@19505c47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:07:06,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:07:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 3068 states, 2040 states have (on average 1.2490196078431373) internal successors, (2548), 2084 states have internal predecessors, (2548), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2022-11-20 11:07:06,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 11:07:06,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:06,597 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:06,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:06,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash -47741034, now seen corresponding path program 1 times [2022-11-20 11:07:06,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:06,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199125996] [2022-11-20 11:07:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:06,628 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 11:07:06,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:06,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:06,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:11,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 4374 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 11:07:11,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-20 11:07:13,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:13,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:13,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199125996] [2022-11-20 11:07:13,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199125996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:13,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:13,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:07:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501236729] [2022-11-20 11:07:13,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:13,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:07:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:07:13,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:13,738 INFO L87 Difference]: Start difference. First operand has 3068 states, 2040 states have (on average 1.2490196078431373) internal successors, (2548), 2084 states have internal predecessors, (2548), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 13 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 11:07:17,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:17,054 INFO L93 Difference]: Finished difference Result 6136 states and 8753 transitions. [2022-11-20 11:07:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:07:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 163 [2022-11-20 11:07:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:17,107 INFO L225 Difference]: With dead ends: 6136 [2022-11-20 11:07:17,107 INFO L226 Difference]: Without dead ends: 3000 [2022-11-20 11:07:17,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:07:17,150 INFO L413 NwaCegarLoop]: 4293 mSDtfsCounter, 918 mSDsluCounter, 28775 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 33068 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:17,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 33068 Invalid, 379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:07:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2022-11-20 11:07:17,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2022-11-20 11:07:17,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2003 states have (on average 1.237643534697953) internal successors, (2479), 2043 states have internal predecessors, (2479), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-20 11:07:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4201 transitions. [2022-11-20 11:07:17,526 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4201 transitions. Word has length 163 [2022-11-20 11:07:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:17,528 INFO L495 AbstractCegarLoop]: Abstraction has 2998 states and 4201 transitions. [2022-11-20 11:07:17,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-20 11:07:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4201 transitions. [2022-11-20 11:07:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 11:07:17,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:17,550 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:17,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:07:17,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:17,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash 990326489, now seen corresponding path program 1 times [2022-11-20 11:07:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:17,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012748003] [2022-11-20 11:07:17,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:17,777 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 11:07:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:17,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:17,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:22,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 4386 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:07:22,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-11-20 11:07:23,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:23,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:23,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012748003] [2022-11-20 11:07:23,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012748003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:23,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:23,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:07:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445091285] [2022-11-20 11:07:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:07:23,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:07:23,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:07:23,713 INFO L87 Difference]: Start difference. First operand 2998 states and 4201 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2022-11-20 11:07:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:29,270 INFO L93 Difference]: Finished difference Result 7697 states and 10952 transitions. [2022-11-20 11:07:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:07:29,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 167 [2022-11-20 11:07:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:29,310 INFO L225 Difference]: With dead ends: 7697 [2022-11-20 11:07:29,310 INFO L226 Difference]: Without dead ends: 4715 [2022-11-20 11:07:29,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:07:29,331 INFO L413 NwaCegarLoop]: 5681 mSDtfsCounter, 2422 mSDsluCounter, 53371 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 59052 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:29,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 59052 Invalid, 1257 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [743 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 11:07:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4715 states. [2022-11-20 11:07:29,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4715 to 3006. [2022-11-20 11:07:29,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2009 states have (on average 1.2369337979094077) internal successors, (2485), 2049 states have internal predecessors, (2485), 863 states have call successors, (863), 132 states have call predecessors, (863), 132 states have return successors, (863), 850 states have call predecessors, (863), 863 states have call successors, (863) [2022-11-20 11:07:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 4211 transitions. [2022-11-20 11:07:29,707 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 4211 transitions. Word has length 167 [2022-11-20 11:07:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:29,708 INFO L495 AbstractCegarLoop]: Abstraction has 3006 states and 4211 transitions. [2022-11-20 11:07:29,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2022-11-20 11:07:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 4211 transitions. [2022-11-20 11:07:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 11:07:29,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:29,713 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:29,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:07:29,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:29,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1337921148, now seen corresponding path program 1 times [2022-11-20 11:07:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:29,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979932596] [2022-11-20 11:07:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:29,941 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 11:07:29,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:29,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:29,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 4432 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:07:35,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 11:07:35,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:35,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:35,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979932596] [2022-11-20 11:07:35,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979932596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:35,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:35,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:07:35,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079140586] [2022-11-20 11:07:35,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:35,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:07:35,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:35,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:07:35,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:07:35,555 INFO L87 Difference]: Start difference. First operand 3006 states and 4211 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:07:37,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:38,213 INFO L93 Difference]: Finished difference Result 6101 states and 8559 transitions. [2022-11-20 11:07:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:07:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2022-11-20 11:07:38,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:38,238 INFO L225 Difference]: With dead ends: 6101 [2022-11-20 11:07:38,238 INFO L226 Difference]: Without dead ends: 3112 [2022-11-20 11:07:38,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:38,258 INFO L413 NwaCegarLoop]: 4233 mSDtfsCounter, 98 mSDsluCounter, 16858 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 21091 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:38,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 21091 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:07:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2022-11-20 11:07:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 3011. [2022-11-20 11:07:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2013 states have (on average 1.2364629905613511) internal successors, (2489), 2053 states have internal predecessors, (2489), 863 states have call successors, (863), 132 states have call predecessors, (863), 133 states have return successors, (865), 851 states have call predecessors, (865), 863 states have call successors, (865) [2022-11-20 11:07:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 4217 transitions. [2022-11-20 11:07:38,657 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 4217 transitions. Word has length 184 [2022-11-20 11:07:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:38,658 INFO L495 AbstractCegarLoop]: Abstraction has 3011 states and 4217 transitions. [2022-11-20 11:07:38,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:07:38,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 4217 transitions. [2022-11-20 11:07:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 11:07:38,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:38,662 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:38,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:38,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:38,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash 632299396, now seen corresponding path program 1 times [2022-11-20 11:07:38,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:38,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755040007] [2022-11-20 11:07:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:38,889 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 11:07:38,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:38,890 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:38,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:43,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 4448 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:07:43,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-11-20 11:07:44,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:44,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755040007] [2022-11-20 11:07:44,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755040007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:44,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:44,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:07:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427289293] [2022-11-20 11:07:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:44,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:07:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:07:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:07:44,721 INFO L87 Difference]: Start difference. First operand 3011 states and 4217 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 6 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-20 11:07:49,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:51,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:56,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:56,644 INFO L93 Difference]: Finished difference Result 7731 states and 10996 transitions. [2022-11-20 11:07:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:07:56,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 6 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 187 [2022-11-20 11:07:56,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:56,686 INFO L225 Difference]: With dead ends: 7731 [2022-11-20 11:07:56,687 INFO L226 Difference]: Without dead ends: 4736 [2022-11-20 11:07:56,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:07:56,709 INFO L413 NwaCegarLoop]: 5672 mSDtfsCounter, 2444 mSDsluCounter, 58888 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 783 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 64560 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:56,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 64560 Invalid, 1377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [783 Valid, 591 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-20 11:07:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2022-11-20 11:07:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 3011. [2022-11-20 11:07:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2013 states have (on average 1.2364629905613511) internal successors, (2489), 2053 states have internal predecessors, (2489), 863 states have call successors, (863), 132 states have call predecessors, (863), 133 states have return successors, (865), 851 states have call predecessors, (865), 863 states have call successors, (865) [2022-11-20 11:07:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 4217 transitions. [2022-11-20 11:07:57,149 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 4217 transitions. Word has length 187 [2022-11-20 11:07:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:57,151 INFO L495 AbstractCegarLoop]: Abstraction has 3011 states and 4217 transitions. [2022-11-20 11:07:57,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 6 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-20 11:07:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 4217 transitions. [2022-11-20 11:07:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-11-20 11:07:57,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:57,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:57,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:57,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:57,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1553158784, now seen corresponding path program 1 times [2022-11-20 11:07:57,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:57,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446697502] [2022-11-20 11:07:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:57,388 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 11:07:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:57,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:07:57,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:08:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:30,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 20527 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:08:30,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-20 11:08:31,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:31,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:31,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446697502] [2022-11-20 11:08:31,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446697502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:31,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:31,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:08:31,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497150056] [2022-11-20 11:08:31,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:31,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:08:31,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:08:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:08:31,187 INFO L87 Difference]: Start difference. First operand 3011 states and 4217 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 11:08:33,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:08:34,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:34,081 INFO L93 Difference]: Finished difference Result 6058 states and 8487 transitions. [2022-11-20 11:08:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:08:34,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 303 [2022-11-20 11:08:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:34,106 INFO L225 Difference]: With dead ends: 6058 [2022-11-20 11:08:34,106 INFO L226 Difference]: Without dead ends: 3064 [2022-11-20 11:08:34,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:08:34,126 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 85 mSDsluCounter, 12604 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 16858 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:34,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 16858 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 11:08:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2022-11-20 11:08:34,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 3014. [2022-11-20 11:08:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 2016 states have (on average 1.2361111111111112) internal successors, (2492), 2056 states have internal predecessors, (2492), 863 states have call successors, (863), 132 states have call predecessors, (863), 133 states have return successors, (865), 851 states have call predecessors, (865), 863 states have call successors, (865) [2022-11-20 11:08:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 4220 transitions. [2022-11-20 11:08:34,398 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 4220 transitions. Word has length 303 [2022-11-20 11:08:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:34,398 INFO L495 AbstractCegarLoop]: Abstraction has 3014 states and 4220 transitions. [2022-11-20 11:08:34,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 11:08:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 4220 transitions. [2022-11-20 11:08:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-20 11:08:34,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:34,405 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:34,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:08:34,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:08:34,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:34,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash 68392607, now seen corresponding path program 1 times [2022-11-20 11:08:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:34,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532395135] [2022-11-20 11:08:34,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:34,624 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 11:08:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:34,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:08:34,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:09,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 20576 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 11:09:09,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-20 11:09:10,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:10,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:10,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532395135] [2022-11-20 11:09:10,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532395135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:10,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:10,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:09:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493697038] [2022-11-20 11:09:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:10,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:09:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:09:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:09:10,300 INFO L87 Difference]: Start difference. First operand 3014 states and 4220 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 11:09:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:10,909 INFO L93 Difference]: Finished difference Result 6075 states and 8513 transitions. [2022-11-20 11:09:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:09:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 324 [2022-11-20 11:09:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:10,930 INFO L225 Difference]: With dead ends: 6075 [2022-11-20 11:09:10,931 INFO L226 Difference]: Without dead ends: 3078 [2022-11-20 11:09:10,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:09:10,948 INFO L413 NwaCegarLoop]: 4273 mSDtfsCounter, 46 mSDsluCounter, 17020 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 21293 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:10,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 21293 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:09:10,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2022-11-20 11:09:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3019. [2022-11-20 11:09:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2020 states have (on average 1.2356435643564356) internal successors, (2496), 2060 states have internal predecessors, (2496), 863 states have call successors, (863), 132 states have call predecessors, (863), 134 states have return successors, (869), 852 states have call predecessors, (869), 863 states have call successors, (869) [2022-11-20 11:09:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4228 transitions. [2022-11-20 11:09:11,369 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4228 transitions. Word has length 324 [2022-11-20 11:09:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:11,370 INFO L495 AbstractCegarLoop]: Abstraction has 3019 states and 4228 transitions. [2022-11-20 11:09:11,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 11:09:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4228 transitions. [2022-11-20 11:09:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-20 11:09:11,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:11,378 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:11,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:11,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:11,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:11,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1411863223, now seen corresponding path program 1 times [2022-11-20 11:09:11,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:11,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375427272] [2022-11-20 11:09:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:11,610 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 11:09:11,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:11,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:11,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:48,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 20610 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:09:48,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-20 11:09:48,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:48,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375427272] [2022-11-20 11:09:48,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375427272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:48,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:48,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:48,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669781464] [2022-11-20 11:09:48,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:48,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:48,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:48,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:48,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:48,143 INFO L87 Difference]: Start difference. First operand 3019 states and 4228 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:09:49,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:49,505 INFO L93 Difference]: Finished difference Result 6937 states and 9808 transitions. [2022-11-20 11:09:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 340 [2022-11-20 11:09:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:49,536 INFO L225 Difference]: With dead ends: 6937 [2022-11-20 11:09:49,536 INFO L226 Difference]: Without dead ends: 3935 [2022-11-20 11:09:49,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 338 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 11:09:49,552 INFO L413 NwaCegarLoop]: 4923 mSDtfsCounter, 840 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 9243 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:49,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 9243 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:09:49,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2022-11-20 11:09:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3020. [2022-11-20 11:09:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 2021 states have (on average 1.235526966848095) internal successors, (2497), 2061 states have internal predecessors, (2497), 863 states have call successors, (863), 132 states have call predecessors, (863), 134 states have return successors, (869), 852 states have call predecessors, (869), 863 states have call successors, (869) [2022-11-20 11:09:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 4229 transitions. [2022-11-20 11:09:49,845 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 4229 transitions. Word has length 340 [2022-11-20 11:09:49,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:49,846 INFO L495 AbstractCegarLoop]: Abstraction has 3020 states and 4229 transitions. [2022-11-20 11:09:49,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:09:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 4229 transitions. [2022-11-20 11:09:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-20 11:09:49,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:49,850 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:50,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:50,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:50,075 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:50,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:50,075 INFO L85 PathProgramCache]: Analyzing trace with hash -822704128, now seen corresponding path program 1 times [2022-11-20 11:09:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:50,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570445822] [2022-11-20 11:09:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:50,080 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 11:09:50,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:50,081 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:09:50,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:10:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:10:27,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 20648 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:10:27,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:10:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-20 11:10:28,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:10:28,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:10:28,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570445822] [2022-11-20 11:10:28,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570445822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:10:28,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:10:28,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:10:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803472538] [2022-11-20 11:10:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:10:28,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:10:28,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:10:28,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:10:28,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:10:28,025 INFO L87 Difference]: Start difference. First operand 3020 states and 4229 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:10:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:10:28,383 INFO L93 Difference]: Finished difference Result 6026 states and 8440 transitions. [2022-11-20 11:10:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:10:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 346 [2022-11-20 11:10:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:10:28,417 INFO L225 Difference]: With dead ends: 6026 [2022-11-20 11:10:28,417 INFO L226 Difference]: Without dead ends: 3023 [2022-11-20 11:10:28,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 343 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 11:10:28,431 INFO L413 NwaCegarLoop]: 4199 mSDtfsCounter, 2 mSDsluCounter, 8389 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12588 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:10:28,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12588 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:10:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2022-11-20 11:10:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 3022. [2022-11-20 11:10:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3022 states, 2023 states have (on average 1.2352941176470589) internal successors, (2499), 2063 states have internal predecessors, (2499), 863 states have call successors, (863), 132 states have call predecessors, (863), 134 states have return successors, (869), 852 states have call predecessors, (869), 863 states have call successors, (869) [2022-11-20 11:10:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3022 states to 3022 states and 4231 transitions. [2022-11-20 11:10:28,684 INFO L78 Accepts]: Start accepts. Automaton has 3022 states and 4231 transitions. Word has length 346 [2022-11-20 11:10:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:10:28,685 INFO L495 AbstractCegarLoop]: Abstraction has 3022 states and 4231 transitions. [2022-11-20 11:10:28,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:10:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3022 states and 4231 transitions. [2022-11-20 11:10:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-11-20 11:10:28,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:10:28,689 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:28,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:10:28,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:10:28,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:10:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:10:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1629787454, now seen corresponding path program 1 times [2022-11-20 11:10:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:10:28,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652708669] [2022-11-20 11:10:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:10:28,919 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 11:10:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:10:28,920 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:10:28,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:11:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:09,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 20651 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:11:09,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:11:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-20 11:11:09,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:11:09,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:11:09,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652708669] [2022-11-20 11:11:09,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652708669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:09,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:09,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:11:09,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016804586] [2022-11-20 11:11:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:09,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:11:09,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:11:09,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:11:09,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:11:09,896 INFO L87 Difference]: Start difference. First operand 3022 states and 4231 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 11:11:11,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:11,224 INFO L93 Difference]: Finished difference Result 6981 states and 9867 transitions. [2022-11-20 11:11:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:11:11,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 346 [2022-11-20 11:11:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:11,268 INFO L225 Difference]: With dead ends: 6981 [2022-11-20 11:11:11,268 INFO L226 Difference]: Without dead ends: 3976 [2022-11-20 11:11:11,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 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 11:11:11,285 INFO L413 NwaCegarLoop]: 4487 mSDtfsCounter, 827 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 8691 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:11,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 8691 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:11:11,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2022-11-20 11:11:11,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3080. [2022-11-20 11:11:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 2072 states have (on average 1.2379343629343629) internal successors, (2565), 2112 states have internal predecessors, (2565), 872 states have call successors, (872), 132 states have call predecessors, (872), 134 states have return successors, (880), 861 states have call predecessors, (880), 872 states have call successors, (880) [2022-11-20 11:11:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4317 transitions. [2022-11-20 11:11:11,619 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4317 transitions. Word has length 346 [2022-11-20 11:11:11,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:11,620 INFO L495 AbstractCegarLoop]: Abstraction has 3080 states and 4317 transitions. [2022-11-20 11:11:11,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 11:11:11,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4317 transitions. [2022-11-20 11:11:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-11-20 11:11:11,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:11,625 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:11,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:11:11,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:11:11,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:11:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1104492533, now seen corresponding path program 1 times [2022-11-20 11:11:11,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:11:11,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085910432] [2022-11-20 11:11:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:11,859 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 11:11:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:11:11,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:11:12,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:11:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:11:49,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 20660 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:11:49,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:11:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-20 11:11:49,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:11:49,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:11:49,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085910432] [2022-11-20 11:11:49,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085910432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:11:49,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:11:49,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:11:49,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740461860] [2022-11-20 11:11:49,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:11:49,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:11:49,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:11:49,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:11:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:11:49,832 INFO L87 Difference]: Start difference. First operand 3080 states and 4317 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-20 11:11:51,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:11:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:11:51,795 INFO L93 Difference]: Finished difference Result 6150 states and 8621 transitions. [2022-11-20 11:11:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:11:51,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 352 [2022-11-20 11:11:51,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:11:51,812 INFO L225 Difference]: With dead ends: 6150 [2022-11-20 11:11:51,812 INFO L226 Difference]: Without dead ends: 3087 [2022-11-20 11:11:51,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:11:51,825 INFO L413 NwaCegarLoop]: 4205 mSDtfsCounter, 16 mSDsluCounter, 16774 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 20979 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:11:51,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 20979 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 11:11:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2022-11-20 11:11:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3082. [2022-11-20 11:11:52,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 2074 states have (on average 1.2377049180327868) internal successors, (2567), 2113 states have internal predecessors, (2567), 872 states have call successors, (872), 132 states have call predecessors, (872), 134 states have return successors, (880), 862 states have call predecessors, (880), 872 states have call successors, (880) [2022-11-20 11:11:52,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4319 transitions. [2022-11-20 11:11:52,132 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4319 transitions. Word has length 352 [2022-11-20 11:11:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:11:52,133 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 4319 transitions. [2022-11-20 11:11:52,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-20 11:11:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4319 transitions. [2022-11-20 11:11:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-11-20 11:11:52,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:52,137 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:52,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:11:52,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:11:52,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:11:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:52,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1153889305, now seen corresponding path program 1 times [2022-11-20 11:11:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:11:52,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966802213] [2022-11-20 11:11:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:52,371 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 11:11:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:11:52,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:11:52,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (12)] Waiting until timeout for monitored process [2022-11-20 11:12:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:34,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 20676 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:34,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-20 11:12:34,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:34,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:34,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966802213] [2022-11-20 11:12:34,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966802213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:34,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:34,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:34,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719335049] [2022-11-20 11:12:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:34,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:34,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:34,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:34,882 INFO L87 Difference]: Start difference. First operand 3082 states and 4319 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-20 11:12:35,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:35,108 INFO L93 Difference]: Finished difference Result 6150 states and 8622 transitions. [2022-11-20 11:12:35,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:35,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 355 [2022-11-20 11:12:35,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:35,127 INFO L225 Difference]: With dead ends: 6150 [2022-11-20 11:12:35,127 INFO L226 Difference]: Without dead ends: 3085 [2022-11-20 11:12:35,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:35,143 INFO L413 NwaCegarLoop]: 4200 mSDtfsCounter, 1 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:35,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8396 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:12:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2022-11-20 11:12:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 3083. [2022-11-20 11:12:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2075 states have (on average 1.237590361445783) internal successors, (2568), 2114 states have internal predecessors, (2568), 872 states have call successors, (872), 132 states have call predecessors, (872), 134 states have return successors, (880), 862 states have call predecessors, (880), 872 states have call successors, (880) [2022-11-20 11:12:35,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4320 transitions. [2022-11-20 11:12:35,593 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4320 transitions. Word has length 355 [2022-11-20 11:12:35,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:35,596 INFO L495 AbstractCegarLoop]: Abstraction has 3083 states and 4320 transitions. [2022-11-20 11:12:35,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-20 11:12:35,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4320 transitions. [2022-11-20 11:12:35,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-20 11:12:35,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:35,603 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 10, 10, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:12:35,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:12:35,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:12:35,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:12:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:35,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1538367351, now seen corresponding path program 1 times [2022-11-20 11:12:35,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:35,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070288368] [2022-11-20 11:12:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:35,835 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 11:12:35,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:35,837 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:12:35,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (13)] Waiting until timeout for monitored process [2022-11-20 11:13:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:25,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 21566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:13:25,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2022-11-20 11:13:25,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:13:25,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:25,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070288368] [2022-11-20 11:13:25,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070288368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:13:25,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:13:25,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:13:25,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313515700] [2022-11-20 11:13:25,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:25,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:25,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:25,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:25,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:13:25,860 INFO L87 Difference]: Start difference. First operand 3083 states and 4320 transitions. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2022-11-20 11:13:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:26,734 INFO L93 Difference]: Finished difference Result 6176 states and 8709 transitions. [2022-11-20 11:13:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:13:26,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) Word has length 595 [2022-11-20 11:13:26,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:26,754 INFO L225 Difference]: With dead ends: 6176 [2022-11-20 11:13:26,754 INFO L226 Difference]: Without dead ends: 3106 [2022-11-20 11:13:26,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:13:26,768 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 11 mSDsluCounter, 12574 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16790 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:26,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16790 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:13:26,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2022-11-20 11:13:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3095. [2022-11-20 11:13:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2082 states have (on average 1.2372718539865515) internal successors, (2576), 2121 states have internal predecessors, (2576), 877 states have call successors, (877), 132 states have call predecessors, (877), 134 states have return successors, (885), 867 states have call predecessors, (885), 877 states have call successors, (885) [2022-11-20 11:13:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4338 transitions. [2022-11-20 11:13:27,002 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4338 transitions. Word has length 595 [2022-11-20 11:13:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:27,003 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 4338 transitions. [2022-11-20 11:13:27,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2022-11-20 11:13:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4338 transitions. [2022-11-20 11:13:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2022-11-20 11:13:27,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:27,011 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 16, 16, 14, 14, 14, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:27,235 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (13)] Forcibly destroying the process [2022-11-20 11:13:27,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:27,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:13:27,253 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:13:27,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:27,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1989002670, now seen corresponding path program 1 times [2022-11-20 11:13:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:27,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223290157] [2022-11-20 11:13:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:27,261 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 11:13:27,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:27,262 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:13:27,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (14)] Waiting until timeout for monitored process [2022-11-20 11:14:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:24,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 21999 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:14:24,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:14:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2251 backedges. 979 proven. 12 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-20 11:14:25,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:14:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2251 backedges. 1 proven. 66 refuted. 0 times theorem prover too weak. 2184 trivial. 0 not checked. [2022-11-20 11:14:27,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:14:27,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223290157] [2022-11-20 11:14:27,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223290157] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:14:27,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:14:27,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:14:27,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091824309] [2022-11-20 11:14:27,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:14:27,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:14:27,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:14:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:14:27,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:14:27,223 INFO L87 Difference]: Start difference. First operand 3095 states and 4338 transitions. Second operand has 10 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 8 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) [2022-11-20 11:14:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:14:29,900 INFO L93 Difference]: Finished difference Result 6254 states and 8826 transitions. [2022-11-20 11:14:29,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:14:29,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 8 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) Word has length 696 [2022-11-20 11:14:29,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:14:29,921 INFO L225 Difference]: With dead ends: 6254 [2022-11-20 11:14:29,921 INFO L226 Difference]: Without dead ends: 3172 [2022-11-20 11:14:29,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1397 GetRequests, 1385 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:14:29,939 INFO L413 NwaCegarLoop]: 4274 mSDtfsCounter, 77 mSDsluCounter, 21062 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 25336 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:14:29,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 25336 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:14:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-11-20 11:14:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3150. [2022-11-20 11:14:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2114 states have (on average 1.2360454115421002) internal successors, (2613), 2153 states have internal predecessors, (2613), 899 states have call successors, (899), 133 states have call predecessors, (899), 135 states have return successors, (907), 889 states have call predecessors, (907), 899 states have call successors, (907) [2022-11-20 11:14:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4419 transitions. [2022-11-20 11:14:30,316 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4419 transitions. Word has length 696 [2022-11-20 11:14:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:30,317 INFO L495 AbstractCegarLoop]: Abstraction has 3150 states and 4419 transitions. [2022-11-20 11:14:30,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 8 states have call successors, (141), 2 states have call predecessors, (141), 4 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) [2022-11-20 11:14:30,317 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4419 transitions. [2022-11-20 11:14:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2022-11-20 11:14:30,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:30,326 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 22, 22, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:30,538 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (14)] Forcibly destroying the process [2022-11-20 11:14:30,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:14:30,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:14:30,581 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:14:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash 979407454, now seen corresponding path program 2 times [2022-11-20 11:14:30,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:14:30,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976407061] [2022-11-20 11:14:30,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:14:30,589 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 11:14:30,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:14:30,591 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:14:30,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (15)] Waiting until timeout for monitored process [2022-11-20 11:14:43,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:14:43,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:14:43,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:14:43,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:14:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2022-11-20 11:14:50,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:14:50,093 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:14:50,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976407061] [2022-11-20 11:14:50,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976407061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:50,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:50,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:14:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119336617] [2022-11-20 11:14:50,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:50,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:14:50,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:14:50,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:14:50,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:14:50,096 INFO L87 Difference]: Start difference. First operand 3150 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) [2022-11-20 11:14:50,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:14:50,452 INFO L93 Difference]: Finished difference Result 6283 states and 8851 transitions. [2022-11-20 11:14:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:14:50,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) Word has length 806 [2022-11-20 11:14:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:14:50,475 INFO L225 Difference]: With dead ends: 6283 [2022-11-20 11:14:50,475 INFO L226 Difference]: Without dead ends: 3150 [2022-11-20 11:14:50,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 804 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 11:14:50,494 INFO L413 NwaCegarLoop]: 4199 mSDtfsCounter, 3835 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 4199 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:14:50,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 4199 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:14:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2022-11-20 11:14:50,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3150. [2022-11-20 11:14:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2114 states have (on average 1.2355723746452223) internal successors, (2612), 2153 states have internal predecessors, (2612), 899 states have call successors, (899), 133 states have call predecessors, (899), 135 states have return successors, (907), 889 states have call predecessors, (907), 899 states have call successors, (907) [2022-11-20 11:14:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4418 transitions. [2022-11-20 11:14:50,875 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4418 transitions. Word has length 806 [2022-11-20 11:14:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:50,876 INFO L495 AbstractCegarLoop]: Abstraction has 3150 states and 4418 transitions. [2022-11-20 11:14:50,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) [2022-11-20 11:14:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4418 transitions. [2022-11-20 11:14:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2022-11-20 11:14:50,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:50,887 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 22, 22, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:50,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:14:51,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:14:51,103 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:14:51,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:51,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1201668403, now seen corresponding path program 1 times [2022-11-20 11:14:51,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:14:51,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216326319] [2022-11-20 11:14:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:51,112 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 11:14:51,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:14:51,113 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:14:51,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (16)] Waiting until timeout for monitored process [2022-11-20 11:15:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:49,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 22400 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:15:49,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:15:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 1713 proven. 36 refuted. 0 times theorem prover too weak. 1915 trivial. 0 not checked. [2022-11-20 11:15:50,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:15:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 21 proven. 130 refuted. 0 times theorem prover too weak. 3513 trivial. 0 not checked. [2022-11-20 11:15:53,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:15:53,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216326319] [2022-11-20 11:15:53,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216326319] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:15:53,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:15:53,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:15:53,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586253313] [2022-11-20 11:15:53,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:15:53,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:15:53,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:15:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:15:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:15:53,847 INFO L87 Difference]: Start difference. First operand 3150 states and 4418 transitions. Second operand has 10 states, 10 states have (on average 33.9) internal successors, (339), 10 states have internal predecessors, (339), 8 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2022-11-20 11:15:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:15:58,205 INFO L93 Difference]: Finished difference Result 6469 states and 9147 transitions. [2022-11-20 11:15:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:15:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.9) internal successors, (339), 10 states have internal predecessors, (339), 8 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) Word has length 807 [2022-11-20 11:15:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:15:58,226 INFO L225 Difference]: With dead ends: 6469 [2022-11-20 11:15:58,226 INFO L226 Difference]: Without dead ends: 3287 [2022-11-20 11:15:58,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1627 GetRequests, 1611 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:15:58,242 INFO L413 NwaCegarLoop]: 4329 mSDtfsCounter, 89 mSDsluCounter, 12729 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 17058 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:15:58,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 17058 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 11:15:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2022-11-20 11:15:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3251. [2022-11-20 11:15:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 2175 states have (on average 1.233103448275862) internal successors, (2682), 2215 states have internal predecessors, (2682), 937 states have call successors, (937), 134 states have call predecessors, (937), 137 states have return successors, (948), 927 states have call predecessors, (948), 937 states have call successors, (948) [2022-11-20 11:15:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 4567 transitions. [2022-11-20 11:15:58,595 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 4567 transitions. Word has length 807 [2022-11-20 11:15:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:15:58,596 INFO L495 AbstractCegarLoop]: Abstraction has 3251 states and 4567 transitions. [2022-11-20 11:15:58,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.9) internal successors, (339), 10 states have internal predecessors, (339), 8 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2022-11-20 11:15:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 4567 transitions. [2022-11-20 11:15:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2022-11-20 11:15:58,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:15:58,607 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 22, 22, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:58,831 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (16)] Forcibly destroying the process [2022-11-20 11:15:58,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:15:58,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:15:58,849 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:15:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash 26884917, now seen corresponding path program 1 times [2022-11-20 11:15:58,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:15:58,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787930224] [2022-11-20 11:15:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:58,857 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 11:15:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:15:58,859 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:15:58,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (17)] Waiting until timeout for monitored process [2022-11-20 11:17:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:07,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 22382 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:17:07,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:17:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 185 proven. 4 refuted. 0 times theorem prover too weak. 3475 trivial. 0 not checked. [2022-11-20 11:17:08,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:17:10,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:17:10,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787930224] [2022-11-20 11:17:10,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787930224] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:17:10,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1431536526] [2022-11-20 11:17:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:10,566 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:17:10,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:17:10,595 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:17:10,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-20 11:17:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:17:41,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 22382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:17:41,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:17:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2022-11-20 11:17:48,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:17:48,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1431536526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:17:48,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:17:48,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-11-20 11:17:48,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333600169] [2022-11-20 11:17:48,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:17:48,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:17:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:17:48,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:17:48,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:17:48,411 INFO L87 Difference]: Start difference. First operand 3251 states and 4567 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) [2022-11-20 11:17:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:17:48,988 INFO L93 Difference]: Finished difference Result 6485 states and 9147 transitions. [2022-11-20 11:17:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:17:48,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) Word has length 807 [2022-11-20 11:17:48,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:17:49,008 INFO L225 Difference]: With dead ends: 6485 [2022-11-20 11:17:49,008 INFO L226 Difference]: Without dead ends: 3251 [2022-11-20 11:17:49,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1788 GetRequests, 1778 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:17:49,022 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 3832 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:17:49,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3832 Valid, 4198 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:17:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-20 11:17:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3251. [2022-11-20 11:17:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 2175 states have (on average 1.2326436781609196) internal successors, (2681), 2215 states have internal predecessors, (2681), 937 states have call successors, (937), 134 states have call predecessors, (937), 137 states have return successors, (948), 927 states have call predecessors, (948), 937 states have call successors, (948) [2022-11-20 11:17:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 4566 transitions. [2022-11-20 11:17:49,480 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 4566 transitions. Word has length 807 [2022-11-20 11:17:49,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:17:49,482 INFO L495 AbstractCegarLoop]: Abstraction has 3251 states and 4566 transitions. [2022-11-20 11:17:49,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 1 states have call successors, (78), 1 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 1 states have call successors, (75) [2022-11-20 11:17:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 4566 transitions. [2022-11-20 11:17:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2022-11-20 11:17:49,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:17:49,494 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 22, 22, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:17:49,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:17:49,923 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (17)] Forcibly destroying the process [2022-11-20 11:17:49,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:17:49,923 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:17:49,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:17:49,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1852757432, now seen corresponding path program 1 times [2022-11-20 11:17:49,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:17:49,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:17:49,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877370172] [2022-11-20 11:17:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:17:49,939 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 11:17:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:17:49,940 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 11:17:49,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ad322b9-30fe-49f8-aa85-a293bbebf5d3/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 (19)] Waiting until timeout for monitored process