./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 114d7004654a3d86a028c0b122f5dce364226bca3b84d6d8b6f812ccac52ec20 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:14:56,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:14:56,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:14:56,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:14:56,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:14:56,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:14:56,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:14:56,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:14:56,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:14:57,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:14:57,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:14:57,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:14:57,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:14:57,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:14:57,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:14:57,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:14:57,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:14:57,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:14:57,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:14:57,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:14:57,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:14:57,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:14:57,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:14:57,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:14:57,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:14:57,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:14:57,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:14:57,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:14:57,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:14:57,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:14:57,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:14:57,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:14:57,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:14:57,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:14:57,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:14:57,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:14:57,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:14:57,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:14:57,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:14:57,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:14:57,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:14:57,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:14:57,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:14:57,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:14:57,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:14:57,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:14:57,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:14:57,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:14:57,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:14:57,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:14:57,116 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:14:57,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:14:57,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:14:57,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:14:57,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:14:57,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:14:57,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:14:57,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:14:57,118 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:14:57,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:14:57,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:14:57,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:14:57,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:14:57,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:14:57,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:14:57,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:14:57,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:14:57,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:14:57,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:14:57,120 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:14:57,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:14:57,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:14:57,121 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_9d1ea905-8980-42ac-bc93-f1270ee46e43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 114d7004654a3d86a028c0b122f5dce364226bca3b84d6d8b6f812ccac52ec20 [2022-11-20 12:14:57,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:14:57,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:14:57,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:14:57,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:14:57,460 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:14:57,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 12:15:00,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:15:01,405 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:15:01,406 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 12:15:01,468 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/a6601c38d/d33dcf3185b2449c85e3d96fea9e3812/FLAGbdba86abf [2022-11-20 12:15:01,490 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/a6601c38d/d33dcf3185b2449c85e3d96fea9e3812 [2022-11-20 12:15:01,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:15:01,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:15:01,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:01,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:15:01,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:15:01,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:01" (1/1) ... [2022-11-20 12:15:01,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43298656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:01, skipping insertion in model container [2022-11-20 12:15:01,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:01" (1/1) ... [2022-11-20 12:15:01,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:15:01,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:02,591 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 12:15:02,603 INFO L158 Benchmark]: Toolchain (without parser) took 1106.45ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 77.5MB in the beginning and 107.0MB in the end (delta: -29.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-20 12:15:02,604 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:15:02,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1102.01ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 77.5MB in the beginning and 107.0MB in the end (delta: -29.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-20 12:15:02,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 140.5MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1102.01ms. Allocated memory was 140.5MB in the beginning and 190.8MB in the end (delta: 50.3MB). Free memory was 77.5MB in the beginning and 107.0MB in the end (delta: -29.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 114d7004654a3d86a028c0b122f5dce364226bca3b84d6d8b6f812ccac52ec20 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:15:05,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:15:05,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:15:05,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:15:05,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:15:05,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:15:05,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:15:05,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:15:05,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:15:05,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:15:05,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:15:05,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:15:05,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:15:05,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:15:05,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:15:05,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:15:05,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:15:05,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:15:05,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:15:05,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:15:05,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:15:05,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:15:05,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:15:05,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:15:05,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:15:05,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:15:05,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:15:05,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:15:05,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:15:05,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:15:05,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:15:05,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:15:05,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:15:05,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:15:05,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:15:05,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:15:05,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:15:05,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:15:05,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:15:05,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:15:05,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:15:05,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:15:05,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:15:05,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:15:05,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:15:05,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:15:05,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:15:05,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:15:05,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:15:05,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:15:05,198 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:15:05,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:15:05,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:15:05,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:15:05,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:15:05,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:15:05,200 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:15:05,201 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:15:05,201 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:15:05,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:15:05,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:15:05,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:15:05,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:15:05,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:15:05,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:15:05,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:05,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:15:05,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:15:05,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:15:05,203 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:15:05,204 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:15:05,204 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:15:05,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:15:05,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:15:05,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:15:05,205 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_9d1ea905-8980-42ac-bc93-f1270ee46e43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 114d7004654a3d86a028c0b122f5dce364226bca3b84d6d8b6f812ccac52ec20 [2022-11-20 12:15:05,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:15:05,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:15:05,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:15:05,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:15:05,682 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:15:05,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 12:15:08,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:15:09,619 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:15:09,620 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 12:15:09,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/f956f79a2/0b92902605b64606b7653ff10c0ccaa5/FLAG7510c8e52 [2022-11-20 12:15:09,706 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/data/f956f79a2/0b92902605b64606b7653ff10c0ccaa5 [2022-11-20 12:15:09,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:15:09,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:15:09,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:09,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:15:09,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:15:09,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:09" (1/1) ... [2022-11-20 12:15:09,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6edb1d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:09, skipping insertion in model container [2022-11-20 12:15:09,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:15:09" (1/1) ... [2022-11-20 12:15:09,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:15:09,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:13,438 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_9d1ea905-8980-42ac-bc93-f1270ee46e43/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[447736,447749] [2022-11-20 12:15:13,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:13,765 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:15:13,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:15:14,376 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_9d1ea905-8980-42ac-bc93-f1270ee46e43/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[447736,447749] [2022-11-20 12:15:14,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:14,425 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:15:15,151 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_9d1ea905-8980-42ac-bc93-f1270ee46e43/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i[447736,447749] [2022-11-20 12:15:15,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:15:15,410 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:15:15,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15 WrapperNode [2022-11-20 12:15:15,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:15:15,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:15,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:15:15,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:15:15,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:15,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:15,866 INFO L138 Inliner]: procedures = 376, calls = 4668, calls flagged for inlining = 125, calls inlined = 121, statements flattened = 8654 [2022-11-20 12:15:15,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:15:15,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:15:15,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:15:15,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:15:15,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:15,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:15,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:15,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,247 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:15:16,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:15:16,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:15:16,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:15:16,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (1/1) ... [2022-11-20 12:15:16,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:15:16,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:15:16,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:15:16,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:15:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 12:15:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 12:15:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-20 12:15:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-20 12:15:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-20 12:15:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-20 12:15:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:15:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-20 12:15:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:15:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-20 12:15:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-20 12:15:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:15:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:15:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 12:15:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 12:15:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:15:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:15:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_power_mgmt [2022-11-20 12:15:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_power_mgmt [2022-11-20 12:15:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_station [2022-11-20 12:15:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_station [2022-11-20 12:15:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-20 12:15:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-20 12:15:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure eth_zero_addr [2022-11-20 12:15:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_zero_addr [2022-11-20 12:15:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-20 12:15:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-20 12:15:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 12:15:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 12:15:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-20 12:15:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-20 12:15:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-20 12:15:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-20 12:15:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-20 12:15:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-20 12:15:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:15:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:15:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_leave_ibss [2022-11-20 12:15:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_leave_ibss [2022-11-20 12:15:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 12:15:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 12:15:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-20 12:15:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-20 12:15:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-20 12:15:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-20 12:15:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_worker [2022-11-20 12:15:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_worker [2022-11-20 12:15:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-20 12:15:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-20 12:15:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_change_virtual_intf [2022-11-20 12:15:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_change_virtual_intf [2022-11-20 12:15:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_tx_power [2022-11-20 12:15:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_tx_power [2022-11-20 12:15:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-20 12:15:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-20 12:15:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_default_key [2022-11-20 12:15:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_default_key [2022-11-20 12:15:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_del_pmksa [2022-11-20 12:15:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_del_pmksa [2022-11-20 12:15:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-20 12:15:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-20 12:15:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:15:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:15:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:15:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:15:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 12:15:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 12:15:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 12:15:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 12:15:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_tx_power [2022-11-20 12:15:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_tx_power [2022-11-20 12:15:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-20 12:15:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-20 12:15:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-20 12:15:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-20 12:15:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 12:15:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 12:15:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_del_key [2022-11-20 12:15:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_del_key [2022-11-20 12:15:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-20 12:15:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-20 12:15:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:15:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:15:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure eth_broadcast_addr [2022-11-20 12:15:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_broadcast_addr [2022-11-20 12:15:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 12:15:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 12:15:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-20 12:15:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-20 12:15:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 12:15:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 12:15:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-20 12:15:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-20 12:15:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_get_scan_results [2022-11-20 12:15:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_get_scan_results [2022-11-20 12:15:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:15:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 12:15:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 12:15:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_cqm_rssi_config [2022-11-20 12:15:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_cqm_rssi_config [2022-11-20 12:15:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-20 12:15:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-20 12:15:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_join_ibss [2022-11-20 12:15:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_join_ibss [2022-11-20 12:15:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-20 12:15:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-20 12:15:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-20 12:15:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-20 12:15:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-20 12:15:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-20 12:15:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-20 12:15:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-20 12:15:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:15:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-20 12:15:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-20 12:15:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_flush_pmksa [2022-11-20 12:15:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_flush_pmksa [2022-11-20 12:15:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-20 12:15:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-20 12:15:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:15:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:15:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-20 12:15:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-20 12:15:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:15:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:15:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-20 12:15:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-20 12:15:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-20 12:15:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-20 12:15:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:15:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:15:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:15:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 12:15:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 12:15:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:15:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:15:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:15:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-20 12:15:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-20 12:15:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-20 12:15:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-20 12:15:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:15:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-20 12:15:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-20 12:15:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 12:15:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 12:15:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-20 12:15:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-20 12:15:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 12:15:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 12:15:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 12:15:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 12:15:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 12:15:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 12:15:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-20 12:15:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-20 12:15:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-20 12:15:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-20 12:15:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:15:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:15:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-20 12:15:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-20 12:15:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-20 12:15:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-20 12:15:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 12:15:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 12:15:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-20 12:15:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-20 12:15:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 12:15:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 12:15:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-20 12:15:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-20 12:15:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_pmksa [2022-11-20 12:15:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_pmksa [2022-11-20 12:15:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-20 12:15:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-20 12:15:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-20 12:15:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-20 12:15:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-20 12:15:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-20 12:15:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_current_channel [2022-11-20 12:15:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current_channel [2022-11-20 12:15:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-20 12:15:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-20 12:15:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-20 12:15:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-20 12:15:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-20 12:15:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-20 12:15:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:15:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:15:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-20 12:15:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-20 12:15:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:15:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:15:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-20 12:15:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-20 12:15:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-20 12:15:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-20 12:15:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-20 12:15:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-20 12:15:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-20 12:15:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-20 12:15:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-20 12:15:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-20 12:15:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:15:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:15:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:15:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:15:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:15:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:15:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:15:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:15:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-20 12:15:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2022-11-20 12:15:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-20 12:15:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-20 12:15:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-20 12:15:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-20 12:15:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:15:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-20 12:15:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2022-11-20 12:15:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-20 12:15:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-20 12:15:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-20 12:15:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-20 12:15:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-20 12:15:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-20 12:15:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 12:15:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 12:15:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:15:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-20 12:15:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-20 12:15:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-20 12:15:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-20 12:15:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-20 12:15:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-20 12:15:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:15:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:15:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:15:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-20 12:15:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-20 12:15:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-20 12:15:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-20 12:15:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:15:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-20 12:15:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-20 12:15:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_device_poller [2022-11-20 12:15:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_device_poller [2022-11-20 12:15:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-20 12:15:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-20 12:15:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_add_key [2022-11-20 12:15:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_add_key [2022-11-20 12:15:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 12:15:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 12:15:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-20 12:15:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-20 12:15:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-20 12:15:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-20 12:15:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 12:15:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 12:15:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 12:15:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 12:15:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-20 12:15:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-20 12:15:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-20 12:15:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-20 12:15:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-20 12:15:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-20 12:15:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-20 12:15:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-20 12:15:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-20 12:15:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-20 12:15:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-20 12:15:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-20 12:15:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-20 12:15:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-20 12:15:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 12:15:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 12:15:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_scan [2022-11-20 12:15:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_scan [2022-11-20 12:15:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:15:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-20 12:15:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-20 12:15:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-20 12:15:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-20 12:15:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 12:15:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 12:15:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:15:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:15:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_dump_station [2022-11-20 12:15:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_dump_station [2022-11-20 12:15:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 12:15:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 12:15:17,899 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:15:17,908 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:15:24,189 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:17:19,279 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:17:19,308 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:17:19,311 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:17:19,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:19 BoogieIcfgContainer [2022-11-20 12:17:19,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:17:19,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:17:19,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:17:19,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:17:19,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:15:09" (1/3) ... [2022-11-20 12:17:19,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2565e98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:19, skipping insertion in model container [2022-11-20 12:17:19,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:15:15" (2/3) ... [2022-11-20 12:17:19,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2565e98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:19, skipping insertion in model container [2022-11-20 12:17:19,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:19" (3/3) ... [2022-11-20 12:17:19,333 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rndis_wlan.ko-entry_point.cil.out.i [2022-11-20 12:17:19,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:17:19,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:17:19,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:17:19,505 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;@52b422de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:17:19,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:17:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 2885 states, 1999 states have (on average 1.377688844422211) internal successors, (2754), 2027 states have internal predecessors, (2754), 749 states have call successors, (749), 136 states have call predecessors, (749), 135 states have return successors, (738), 738 states have call predecessors, (738), 738 states have call successors, (738) [2022-11-20 12:17:19,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-20 12:17:19,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:19,597 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:19,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1406512828, now seen corresponding path program 1 times [2022-11-20 12:17:19,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:19,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717015901] [2022-11-20 12:17:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:19,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:19,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:19,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:17:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 5736 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:17:25,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5144 backedges. 1391 proven. 0 refuted. 0 times theorem prover too weak. 3753 trivial. 0 not checked. [2022-11-20 12:17:25,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:25,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:25,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717015901] [2022-11-20 12:17:25,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717015901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707337791] [2022-11-20 12:17:25,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:17:25,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:25,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:17:25,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:17:25,772 INFO L87 Difference]: Start difference. First operand has 2885 states, 1999 states have (on average 1.377688844422211) internal successors, (2754), 2027 states have internal predecessors, (2754), 749 states have call successors, (749), 136 states have call predecessors, (749), 135 states have return successors, (738), 738 states have call predecessors, (738), 738 states have call successors, (738) Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 12:17:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:26,169 INFO L93 Difference]: Finished difference Result 5765 states and 8780 transitions. [2022-11-20 12:17:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:17:26,174 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 610 [2022-11-20 12:17:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:26,222 INFO L225 Difference]: With dead ends: 5765 [2022-11-20 12:17:26,223 INFO L226 Difference]: Without dead ends: 2866 [2022-11-20 12:17:26,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:17:26,274 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:26,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4231 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2022-11-20 12:17:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2866. [2022-11-20 12:17:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 1993 states have (on average 1.3707977922729553) internal successors, (2732), 2008 states have internal predecessors, (2732), 738 states have call successors, (738), 135 states have call predecessors, (738), 134 states have return successors, (732), 732 states have call predecessors, (732), 732 states have call successors, (732) [2022-11-20 12:17:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 4202 transitions. [2022-11-20 12:17:26,576 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 4202 transitions. Word has length 610 [2022-11-20 12:17:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:26,579 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 4202 transitions. [2022-11-20 12:17:26,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-20 12:17:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 4202 transitions. [2022-11-20 12:17:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-20 12:17:26,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:26,606 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:26,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:26,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:26,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:26,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:26,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1640421604, now seen corresponding path program 1 times [2022-11-20 12:17:26,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:26,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711064350] [2022-11-20 12:17:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:26,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:26,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:26,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:17:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:35,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 5736 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:17:35,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5144 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 4937 trivial. 0 not checked. [2022-11-20 12:17:36,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:36,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:36,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711064350] [2022-11-20 12:17:36,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711064350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:36,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:36,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:36,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437978792] [2022-11-20 12:17:36,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:36,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:36,231 INFO L87 Difference]: Start difference. First operand 2866 states and 4202 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 12:17:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:41,349 INFO L93 Difference]: Finished difference Result 5694 states and 8607 transitions. [2022-11-20 12:17:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:17:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 610 [2022-11-20 12:17:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:41,377 INFO L225 Difference]: With dead ends: 5694 [2022-11-20 12:17:41,378 INFO L226 Difference]: Without dead ends: 2867 [2022-11-20 12:17:41,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:17:41,405 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 6 mSDsluCounter, 16627 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20802 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:41,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20802 Invalid, 242 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 12:17:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2022-11-20 12:17:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2867. [2022-11-20 12:17:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 1994 states have (on average 1.3706118355065195) internal successors, (2733), 2009 states have internal predecessors, (2733), 738 states have call successors, (738), 135 states have call predecessors, (738), 134 states have return successors, (732), 732 states have call predecessors, (732), 732 states have call successors, (732) [2022-11-20 12:17:41,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 4203 transitions. [2022-11-20 12:17:41,547 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 4203 transitions. Word has length 610 [2022-11-20 12:17:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:41,555 INFO L495 AbstractCegarLoop]: Abstraction has 2867 states and 4203 transitions. [2022-11-20 12:17:41,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 12:17:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 4203 transitions. [2022-11-20 12:17:41,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-11-20 12:17:41,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:41,579 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:41,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:41,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:41,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:41,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2029792812, now seen corresponding path program 1 times [2022-11-20 12:17:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:41,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465917605] [2022-11-20 12:17:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:41,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:41,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:41,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:41,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:17:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:50,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 6000 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:17:50,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5996 backedges. 276 proven. 1 refuted. 0 times theorem prover too weak. 5719 trivial. 0 not checked. [2022-11-20 12:17:51,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5996 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5765 trivial. 0 not checked. [2022-11-20 12:17:55,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:55,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465917605] [2022-11-20 12:17:55,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465917605] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:55,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:17:55,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 12:17:55,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874909291] [2022-11-20 12:17:55,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:55,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:55,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:55,150 INFO L87 Difference]: Start difference. First operand 2867 states and 4203 transitions. Second operand has 11 states, 9 states have (on average 11.666666666666666) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:18:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:01,309 INFO L93 Difference]: Finished difference Result 5706 states and 8623 transitions. [2022-11-20 12:18:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:18:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 11.666666666666666) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) Word has length 634 [2022-11-20 12:18:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:01,331 INFO L225 Difference]: With dead ends: 5706 [2022-11-20 12:18:01,332 INFO L226 Difference]: Without dead ends: 2883 [2022-11-20 12:18:01,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1270 GetRequests, 1257 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:18:01,357 INFO L413 NwaCegarLoop]: 4177 mSDtfsCounter, 17 mSDsluCounter, 20766 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24943 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:01,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 24943 Invalid, 345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-20 12:18:01,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-11-20 12:18:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2883. [2022-11-20 12:18:01,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2005 states have (on average 1.3690773067331672) internal successors, (2745), 2020 states have internal predecessors, (2745), 740 states have call successors, (740), 138 states have call predecessors, (740), 137 states have return successors, (734), 734 states have call predecessors, (734), 734 states have call successors, (734) [2022-11-20 12:18:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 4219 transitions. [2022-11-20 12:18:01,483 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 4219 transitions. Word has length 634 [2022-11-20 12:18:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:01,485 INFO L495 AbstractCegarLoop]: Abstraction has 2883 states and 4219 transitions. [2022-11-20 12:18:01,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 11.666666666666666) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:18:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 4219 transitions. [2022-11-20 12:18:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-11-20 12:18:01,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:01,506 INFO L195 NwaCegarLoop]: trace histogram [40, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:01,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:01,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:01,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:01,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:01,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1799307432, now seen corresponding path program 2 times [2022-11-20 12:18:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:01,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570360924] [2022-11-20 12:18:01,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:18:01,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:01,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:01,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:18:06,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:18:06,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:18:06,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 3969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:18:06,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6884 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6884 trivial. 0 not checked. [2022-11-20 12:18:25,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:18:25,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:25,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570360924] [2022-11-20 12:18:25,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570360924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:25,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:25,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:18:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714078517] [2022-11-20 12:18:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:25,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:18:25,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:25,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:18:25,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:18:25,440 INFO L87 Difference]: Start difference. First operand 2883 states and 4219 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-20 12:18:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:25,687 INFO L93 Difference]: Finished difference Result 2903 states and 4237 transitions. [2022-11-20 12:18:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:18:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 650 [2022-11-20 12:18:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:25,711 INFO L225 Difference]: With dead ends: 2903 [2022-11-20 12:18:25,711 INFO L226 Difference]: Without dead ends: 2897 [2022-11-20 12:18:25,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:18:25,717 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 3882 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:25,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3882 Valid, 4344 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:18:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2022-11-20 12:18:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2895. [2022-11-20 12:18:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2016 states have (on average 1.3675595238095237) internal successors, (2757), 2029 states have internal predecessors, (2757), 738 states have call successors, (738), 141 states have call predecessors, (738), 140 states have return successors, (734), 734 states have call predecessors, (734), 734 states have call successors, (734) [2022-11-20 12:18:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 4229 transitions. [2022-11-20 12:18:25,928 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 4229 transitions. Word has length 650 [2022-11-20 12:18:25,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:25,932 INFO L495 AbstractCegarLoop]: Abstraction has 2895 states and 4229 transitions. [2022-11-20 12:18:25,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-20 12:18:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 4229 transitions. [2022-11-20 12:18:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-11-20 12:18:25,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:25,955 INFO L195 NwaCegarLoop]: trace histogram [40, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:26,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:26,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:26,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:26,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:26,176 INFO L85 PathProgramCache]: Analyzing trace with hash 54805104, now seen corresponding path program 1 times [2022-11-20 12:18:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:26,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822594744] [2022-11-20 12:18:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:26,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:26,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:26,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:26,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:18:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:35,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 6177 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:18:35,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6884 backedges. 367 proven. 3 refuted. 0 times theorem prover too weak. 6514 trivial. 0 not checked. [2022-11-20 12:18:36,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6884 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 6560 trivial. 0 not checked. [2022-11-20 12:18:41,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822594744] [2022-11-20 12:18:41,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822594744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:18:41,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:18:41,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 12:18:41,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831521603] [2022-11-20 12:18:41,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:41,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:18:41,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:41,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:18:41,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:18:41,150 INFO L87 Difference]: Start difference. First operand 2895 states and 4229 transitions. Second operand has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:18:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:50,448 INFO L93 Difference]: Finished difference Result 5759 states and 8663 transitions. [2022-11-20 12:18:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:18:50,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) Word has length 651 [2022-11-20 12:18:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:50,474 INFO L225 Difference]: With dead ends: 5759 [2022-11-20 12:18:50,474 INFO L226 Difference]: Without dead ends: 2903 [2022-11-20 12:18:50,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1304 GetRequests, 1289 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:18:50,502 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 18 mSDsluCounter, 33222 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 37396 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:50,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 37396 Invalid, 500 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-20 12:18:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2022-11-20 12:18:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2903. [2022-11-20 12:18:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2023 states have (on average 1.3672763222936233) internal successors, (2766), 2036 states have internal predecessors, (2766), 738 states have call successors, (738), 142 states have call predecessors, (738), 141 states have return successors, (734), 734 states have call predecessors, (734), 734 states have call successors, (734) [2022-11-20 12:18:50,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 4238 transitions. [2022-11-20 12:18:50,690 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 4238 transitions. Word has length 651 [2022-11-20 12:18:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:50,693 INFO L495 AbstractCegarLoop]: Abstraction has 2903 states and 4238 transitions. [2022-11-20 12:18:50,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.818181818181818) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (74), 2 states have call predecessors, (74), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:18:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 4238 transitions. [2022-11-20 12:18:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2022-11-20 12:18:50,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:50,704 INFO L195 NwaCegarLoop]: trace histogram [55, 24, 24, 24, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:50,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:50,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:50,929 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:50,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:50,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1842108527, now seen corresponding path program 2 times [2022-11-20 12:18:50,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:50,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017350813] [2022-11-20 12:18:50,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:18:50,939 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 12:18:50,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:50,940 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:50,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:18:55,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:18:55,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:18:55,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 3970 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:18:56,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7949 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7949 trivial. 0 not checked. [2022-11-20 12:18:56,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:18:56,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:56,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017350813] [2022-11-20 12:18:56,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017350813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:56,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:56,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:18:56,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243918640] [2022-11-20 12:18:56,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:56,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:18:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:18:56,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:18:56,556 INFO L87 Difference]: Start difference. First operand 2903 states and 4238 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-20 12:18:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:57,768 INFO L93 Difference]: Finished difference Result 8423 states and 12318 transitions. [2022-11-20 12:18:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:18:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 666 [2022-11-20 12:18:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:57,815 INFO L225 Difference]: With dead ends: 8423 [2022-11-20 12:18:57,816 INFO L226 Difference]: Without dead ends: 5632 [2022-11-20 12:18:57,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 665 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:18:57,833 INFO L413 NwaCegarLoop]: 4882 mSDtfsCounter, 3975 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3975 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:57,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3975 Valid, 9060 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 12:18:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2022-11-20 12:18:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 5629. [2022-11-20 12:18:58,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5629 states, 3942 states have (on average 1.3744292237442923) internal successors, (5418), 3965 states have internal predecessors, (5418), 1409 states have call successors, (1409), 278 states have call predecessors, (1409), 277 states have return successors, (1405), 1405 states have call predecessors, (1405), 1405 states have call successors, (1405) [2022-11-20 12:18:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5629 states to 5629 states and 8232 transitions. [2022-11-20 12:18:58,243 INFO L78 Accepts]: Start accepts. Automaton has 5629 states and 8232 transitions. Word has length 666 [2022-11-20 12:18:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:58,244 INFO L495 AbstractCegarLoop]: Abstraction has 5629 states and 8232 transitions. [2022-11-20 12:18:58,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2022-11-20 12:18:58,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5629 states and 8232 transitions. [2022-11-20 12:18:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2022-11-20 12:18:58,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:58,261 INFO L195 NwaCegarLoop]: trace histogram [55, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:58,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:58,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:58,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:58,485 INFO L85 PathProgramCache]: Analyzing trace with hash 998700148, now seen corresponding path program 1 times [2022-11-20 12:18:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:58,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554895213] [2022-11-20 12:18:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:58,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:58,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:58,499 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:58,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:19:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:08,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 6413 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:19:08,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8229 backedges. 764 proven. 6 refuted. 0 times theorem prover too weak. 7459 trivial. 0 not checked. [2022-11-20 12:19:09,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:19:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8229 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 7785 trivial. 0 not checked. [2022-11-20 12:19:15,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:19:15,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554895213] [2022-11-20 12:19:15,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554895213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:19:15,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:19:15,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 12:19:15,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877087269] [2022-11-20 12:19:15,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:19:15,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:19:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:19:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:19:15,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:19:15,094 INFO L87 Difference]: Start difference. First operand 5629 states and 8232 transitions. Second operand has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (78), 2 states have call predecessors, (78), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 12:19:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:23,607 INFO L93 Difference]: Finished difference Result 11229 states and 16905 transitions. [2022-11-20 12:19:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:19:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (78), 2 states have call predecessors, (78), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) Word has length 685 [2022-11-20 12:19:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:23,655 INFO L225 Difference]: With dead ends: 11229 [2022-11-20 12:19:23,655 INFO L226 Difference]: Without dead ends: 5633 [2022-11-20 12:19:23,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1355 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-20 12:19:23,697 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 31 mSDsluCounter, 24916 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 29091 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:23,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 29091 Invalid, 456 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-20 12:19:23,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2022-11-20 12:19:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 5633. [2022-11-20 12:19:24,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5633 states, 3946 states have (on average 1.374049670552458) internal successors, (5422), 3969 states have internal predecessors, (5422), 1409 states have call successors, (1409), 278 states have call predecessors, (1409), 277 states have return successors, (1405), 1405 states have call predecessors, (1405), 1405 states have call successors, (1405) [2022-11-20 12:19:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5633 states to 5633 states and 8236 transitions. [2022-11-20 12:19:24,258 INFO L78 Accepts]: Start accepts. Automaton has 5633 states and 8236 transitions. Word has length 685 [2022-11-20 12:19:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:24,259 INFO L495 AbstractCegarLoop]: Abstraction has 5633 states and 8236 transitions. [2022-11-20 12:19:24,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.461538461538462) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (78), 2 states have call predecessors, (78), 5 states have return successors, (78), 4 states have call predecessors, (78), 4 states have call successors, (78) [2022-11-20 12:19:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5633 states and 8236 transitions. [2022-11-20 12:19:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-11-20 12:19:24,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:24,278 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:24,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:24,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:24,493 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:24,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1850138803, now seen corresponding path program 2 times [2022-11-20 12:19:24,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:19:24,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607990960] [2022-11-20 12:19:24,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:19:24,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:24,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:19:24,502 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:19:24,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:19:29,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:19:29,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:19:29,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 3879 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:19:29,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9519 trivial. 0 not checked. [2022-11-20 12:19:49,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:49,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:19:49,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607990960] [2022-11-20 12:19:49,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607990960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:49,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:49,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:19:49,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474136377] [2022-11-20 12:19:49,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:49,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:19:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:19:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:19:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:19:49,607 INFO L87 Difference]: Start difference. First operand 5633 states and 8236 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:19:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:49,876 INFO L93 Difference]: Finished difference Result 5635 states and 8237 transitions. [2022-11-20 12:19:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:19:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 700 [2022-11-20 12:19:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:49,914 INFO L225 Difference]: With dead ends: 5635 [2022-11-20 12:19:49,914 INFO L226 Difference]: Without dead ends: 5632 [2022-11-20 12:19:49,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:19:49,920 INFO L413 NwaCegarLoop]: 4195 mSDtfsCounter, 4012 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 4195 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 12:19:49,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4012 Valid, 4195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:19:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2022-11-20 12:19:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 5632. [2022-11-20 12:19:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 3946 states have (on average 1.373796249366447) internal successors, (5421), 3968 states have internal predecessors, (5421), 1408 states have call successors, (1408), 278 states have call predecessors, (1408), 277 states have return successors, (1405), 1405 states have call predecessors, (1405), 1405 states have call successors, (1405) [2022-11-20 12:19:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 8234 transitions. [2022-11-20 12:19:50,347 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 8234 transitions. Word has length 700 [2022-11-20 12:19:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:50,349 INFO L495 AbstractCegarLoop]: Abstraction has 5632 states and 8234 transitions. [2022-11-20 12:19:50,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:19:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 8234 transitions. [2022-11-20 12:19:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2022-11-20 12:19:50,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:50,365 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:50,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:50,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:50,589 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:50,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1518493560, now seen corresponding path program 1 times [2022-11-20 12:19:50,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:19:50,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394351674] [2022-11-20 12:19:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:50,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:19:50,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:19:50,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:20:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:17,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 6579 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:20:17,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:20:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9519 trivial. 0 not checked. [2022-11-20 12:20:37,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:20:37,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:20:37,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394351674] [2022-11-20 12:20:37,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394351674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:37,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:37,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:37,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919172338] [2022-11-20 12:20:37,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:37,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:37,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:20:37,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:37,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:37,313 INFO L87 Difference]: Start difference. First operand 5632 states and 8234 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:20:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:37,604 INFO L93 Difference]: Finished difference Result 5634 states and 8235 transitions. [2022-11-20 12:20:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:37,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 701 [2022-11-20 12:20:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:37,633 INFO L225 Difference]: With dead ends: 5634 [2022-11-20 12:20:37,634 INFO L226 Difference]: Without dead ends: 5631 [2022-11-20 12:20:37,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:37,639 INFO L413 NwaCegarLoop]: 4193 mSDtfsCounter, 4009 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4009 SdHoareTripleChecker+Valid, 4193 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 12:20:37,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4009 Valid, 4193 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:20:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-11-20 12:20:38,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5631. [2022-11-20 12:20:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 3946 states have (on average 1.3735428281804358) internal successors, (5420), 3967 states have internal predecessors, (5420), 1407 states have call successors, (1407), 278 states have call predecessors, (1407), 277 states have return successors, (1405), 1405 states have call predecessors, (1405), 1405 states have call successors, (1405) [2022-11-20 12:20:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 8232 transitions. [2022-11-20 12:20:38,184 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 8232 transitions. Word has length 701 [2022-11-20 12:20:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:38,185 INFO L495 AbstractCegarLoop]: Abstraction has 5631 states and 8232 transitions. [2022-11-20 12:20:38,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:20:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 8232 transitions. [2022-11-20 12:20:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2022-11-20 12:20:38,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:38,201 INFO L195 NwaCegarLoop]: trace histogram [70, 24, 24, 24, 24, 24, 24, 24, 24, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:38,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:20:38,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:38,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:20:38,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash -172569514, now seen corresponding path program 1 times [2022-11-20 12:20:38,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:20:38,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692594861] [2022-11-20 12:20:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:38,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:20:38,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:20:38,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:21:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:04,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 6580 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:21:04,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:21:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9519 trivial. 0 not checked. [2022-11-20 12:21:24,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:21:24,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:21:24,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692594861] [2022-11-20 12:21:24,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692594861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:24,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:24,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:24,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194496709] [2022-11-20 12:21:24,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:24,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:21:24,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:24,502 INFO L87 Difference]: Start difference. First operand 5631 states and 8232 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:21:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:21:24,862 INFO L93 Difference]: Finished difference Result 5633 states and 8233 transitions. [2022-11-20 12:21:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 702 [2022-11-20 12:21:24,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:21:24,889 INFO L225 Difference]: With dead ends: 5633 [2022-11-20 12:21:24,890 INFO L226 Difference]: Without dead ends: 5622 [2022-11-20 12:21:24,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:24,895 INFO L413 NwaCegarLoop]: 4192 mSDtfsCounter, 4006 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4006 SdHoareTripleChecker+Valid, 4192 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:21:24,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4006 Valid, 4192 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:21:24,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5622 states. [2022-11-20 12:21:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5622 to 5622. [2022-11-20 12:21:25,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5622 states, 3938 states have (on average 1.3737938039614017) internal successors, (5410), 3958 states have internal predecessors, (5410), 1406 states have call successors, (1406), 278 states have call predecessors, (1406), 277 states have return successors, (1405), 1405 states have call predecessors, (1405), 1405 states have call successors, (1405) [2022-11-20 12:21:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5622 states to 5622 states and 8221 transitions. [2022-11-20 12:21:25,563 INFO L78 Accepts]: Start accepts. Automaton has 5622 states and 8221 transitions. Word has length 702 [2022-11-20 12:21:25,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:21:25,565 INFO L495 AbstractCegarLoop]: Abstraction has 5622 states and 8221 transitions. [2022-11-20 12:21:25,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 12:21:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5622 states and 8221 transitions. [2022-11-20 12:21:25,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2022-11-20 12:21:25,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:21:25,584 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:21:25,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:21:25,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:25,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:21:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1314229542, now seen corresponding path program 1 times [2022-11-20 12:21:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:21:25,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419054187] [2022-11-20 12:21:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:25,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:25,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:21:25,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:21:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:21:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:52,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 6817 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:21:52,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:21:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:21:52,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:21:52,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:21:52,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419054187] [2022-11-20 12:21:52,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419054187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:52,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:52,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:21:52,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313071488] [2022-11-20 12:21:52,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:52,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:52,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:21:52,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:52,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:52,935 INFO L87 Difference]: Start difference. First operand 5622 states and 8221 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:21:55,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:21:55,544 INFO L93 Difference]: Finished difference Result 16371 states and 23919 transitions. [2022-11-20 12:21:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:55,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 731 [2022-11-20 12:21:55,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:21:55,606 INFO L225 Difference]: With dead ends: 16371 [2022-11-20 12:21:55,607 INFO L226 Difference]: Without dead ends: 10861 [2022-11-20 12:21:55,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 729 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:55,639 INFO L413 NwaCegarLoop]: 4826 mSDtfsCounter, 3932 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 8770 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:21:55,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 8770 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-20 12:21:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2022-11-20 12:21:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10858. [2022-11-20 12:21:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 7623 states have (on average 1.3739997376361013) internal successors, (10474), 7663 states have internal predecessors, (10474), 2689 states have call successors, (2689), 546 states have call predecessors, (2689), 545 states have return successors, (2688), 2688 states have call predecessors, (2688), 2688 states have call successors, (2688) [2022-11-20 12:21:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15851 transitions. [2022-11-20 12:21:56,876 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15851 transitions. Word has length 731 [2022-11-20 12:21:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:21:56,877 INFO L495 AbstractCegarLoop]: Abstraction has 10858 states and 15851 transitions. [2022-11-20 12:21:56,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:21:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15851 transitions. [2022-11-20 12:21:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2022-11-20 12:21:56,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:21:56,896 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:21:57,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:21:57,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:57,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:21:57,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 393274926, now seen corresponding path program 1 times [2022-11-20 12:21:57,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:21:57,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549493463] [2022-11-20 12:21:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:57,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:57,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:21:57,118 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:21:57,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:22:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:23,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 6801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:22:23,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:22:23,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:22:23,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:22:23,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549493463] [2022-11-20 12:22:23,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549493463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:22:23,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:22:23,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:22:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434974929] [2022-11-20 12:22:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:22:23,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:22:23,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:22:23,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:22:23,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:22:23,755 INFO L87 Difference]: Start difference. First operand 10858 states and 15851 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:22:27,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:27,082 INFO L93 Difference]: Finished difference Result 31856 states and 46453 transitions. [2022-11-20 12:22:27,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:22:27,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 724 [2022-11-20 12:22:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:22:27,197 INFO L225 Difference]: With dead ends: 31856 [2022-11-20 12:22:27,197 INFO L226 Difference]: Without dead ends: 21120 [2022-11-20 12:22:27,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:22:27,247 INFO L413 NwaCegarLoop]: 4994 mSDtfsCounter, 3974 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 8938 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:22:27,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3974 Valid, 8938 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 12:22:27,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21120 states. [2022-11-20 12:22:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21120 to 21115. [2022-11-20 12:22:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21115 states, 14835 states have (on average 1.372025615099427) internal successors, (20354), 14916 states have internal predecessors, (20354), 5204 states have call successors, (5204), 1076 states have call predecessors, (5204), 1075 states have return successors, (5203), 5202 states have call predecessors, (5203), 5203 states have call successors, (5203) [2022-11-20 12:22:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21115 states to 21115 states and 30761 transitions. [2022-11-20 12:22:29,669 INFO L78 Accepts]: Start accepts. Automaton has 21115 states and 30761 transitions. Word has length 724 [2022-11-20 12:22:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:22:29,670 INFO L495 AbstractCegarLoop]: Abstraction has 21115 states and 30761 transitions. [2022-11-20 12:22:29,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:22:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 21115 states and 30761 transitions. [2022-11-20 12:22:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-11-20 12:22:29,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:22:29,693 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:22:29,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:22:29,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:22:29,914 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:22:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:22:29,915 INFO L85 PathProgramCache]: Analyzing trace with hash 962385490, now seen corresponding path program 1 times [2022-11-20 12:22:29,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:22:29,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844837341] [2022-11-20 12:22:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:22:29,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:22:29,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:22:29,921 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:22:29,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:22:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:22:57,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 6976 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:22:57,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:22:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:22:57,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:22:57,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:22:57,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844837341] [2022-11-20 12:22:57,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844837341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:22:57,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:22:57,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:22:57,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575874826] [2022-11-20 12:22:57,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:22:57,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:22:57,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:22:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:22:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:22:57,641 INFO L87 Difference]: Start difference. First operand 21115 states and 30761 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:22:59,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:22:59,879 INFO L93 Difference]: Finished difference Result 42088 states and 61327 transitions. [2022-11-20 12:22:59,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:22:59,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 729 [2022-11-20 12:22:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:23:00,005 INFO L225 Difference]: With dead ends: 42088 [2022-11-20 12:23:00,005 INFO L226 Difference]: Without dead ends: 21099 [2022-11-20 12:23:00,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:23:00,100 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:23:00,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 4178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:23:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21099 states. [2022-11-20 12:23:02,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21099 to 21099. [2022-11-20 12:23:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21099 states, 14827 states have (on average 1.3716867876171848) internal successors, (20338), 14908 states have internal predecessors, (20338), 5196 states have call successors, (5196), 1076 states have call predecessors, (5196), 1075 states have return successors, (5195), 5194 states have call predecessors, (5195), 5195 states have call successors, (5195) [2022-11-20 12:23:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21099 states to 21099 states and 30729 transitions. [2022-11-20 12:23:02,346 INFO L78 Accepts]: Start accepts. Automaton has 21099 states and 30729 transitions. Word has length 729 [2022-11-20 12:23:02,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:23:02,347 INFO L495 AbstractCegarLoop]: Abstraction has 21099 states and 30729 transitions. [2022-11-20 12:23:02,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:23:02,347 INFO L276 IsEmpty]: Start isEmpty. Operand 21099 states and 30729 transitions. [2022-11-20 12:23:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2022-11-20 12:23:02,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:23:02,364 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:23:02,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:23:02,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:23:02,569 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:23:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:23:02,570 INFO L85 PathProgramCache]: Analyzing trace with hash -34896115, now seen corresponding path program 1 times [2022-11-20 12:23:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:23:02,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055237716] [2022-11-20 12:23:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:23:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:23:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:23:02,577 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:23:02,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:23:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:23:29,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 6993 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:23:29,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:23:29,759 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:23:29,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:23:29,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:23:29,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055237716] [2022-11-20 12:23:29,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055237716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:23:29,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:23:29,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:23:29,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438547429] [2022-11-20 12:23:29,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:23:29,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:23:29,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:23:29,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:23:29,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:23:29,763 INFO L87 Difference]: Start difference. First operand 21099 states and 30729 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 12:23:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:23:32,054 INFO L93 Difference]: Finished difference Result 42056 states and 61263 transitions. [2022-11-20 12:23:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:23:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 725 [2022-11-20 12:23:32,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:23:32,178 INFO L225 Difference]: With dead ends: 42056 [2022-11-20 12:23:32,178 INFO L226 Difference]: Without dead ends: 21083 [2022-11-20 12:23:32,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:23:32,278 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 4163 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4163 SdHoareTripleChecker+Valid, 4174 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:23:32,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4163 Valid, 4174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:23:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21083 states. [2022-11-20 12:23:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21083 to 21083. [2022-11-20 12:23:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21083 states, 14819 states have (on average 1.371347594304609) internal successors, (20322), 14900 states have internal predecessors, (20322), 5188 states have call successors, (5188), 1076 states have call predecessors, (5188), 1075 states have return successors, (5187), 5186 states have call predecessors, (5187), 5187 states have call successors, (5187) [2022-11-20 12:23:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21083 states to 21083 states and 30697 transitions. [2022-11-20 12:23:35,124 INFO L78 Accepts]: Start accepts. Automaton has 21083 states and 30697 transitions. Word has length 725 [2022-11-20 12:23:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:23:35,125 INFO L495 AbstractCegarLoop]: Abstraction has 21083 states and 30697 transitions. [2022-11-20 12:23:35,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 12:23:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 21083 states and 30697 transitions. [2022-11-20 12:23:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2022-11-20 12:23:35,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:23:35,142 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:23:35,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:23:35,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:23:35,369 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:23:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:23:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash 144664492, now seen corresponding path program 1 times [2022-11-20 12:23:35,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:23:35,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113598149] [2022-11-20 12:23:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:23:35,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:23:35,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:23:35,378 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:23:35,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:24:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:01,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 6802 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:24:01,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:24:02,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:02,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:02,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113598149] [2022-11-20 12:24:02,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113598149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:02,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:02,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:24:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561360556] [2022-11-20 12:24:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:02,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:24:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:24:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:24:02,209 INFO L87 Difference]: Start difference. First operand 21083 states and 30697 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:24:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:07,383 INFO L93 Difference]: Finished difference Result 60945 states and 88627 transitions. [2022-11-20 12:24:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:24:07,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 723 [2022-11-20 12:24:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:07,615 INFO L225 Difference]: With dead ends: 60945 [2022-11-20 12:24:07,615 INFO L226 Difference]: Without dead ends: 39984 [2022-11-20 12:24:07,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:24:07,723 INFO L413 NwaCegarLoop]: 5532 mSDtfsCounter, 3885 mSDsluCounter, 3936 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3885 SdHoareTripleChecker+Valid, 9468 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:07,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3885 Valid, 9468 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 12:24:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39984 states. [2022-11-20 12:24:11,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39984 to 39977. [2022-11-20 12:24:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39977 states, 28137 states have (on average 1.3701531790880335) internal successors, (38552), 28292 states have internal predecessors, (38552), 9766 states have call successors, (9766), 2074 states have call predecessors, (9766), 2073 states have return successors, (9765), 9762 states have call predecessors, (9765), 9765 states have call successors, (9765) [2022-11-20 12:24:12,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39977 states to 39977 states and 58083 transitions. [2022-11-20 12:24:12,122 INFO L78 Accepts]: Start accepts. Automaton has 39977 states and 58083 transitions. Word has length 723 [2022-11-20 12:24:12,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:12,123 INFO L495 AbstractCegarLoop]: Abstraction has 39977 states and 58083 transitions. [2022-11-20 12:24:12,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:24:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 39977 states and 58083 transitions. [2022-11-20 12:24:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2022-11-20 12:24:12,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:12,138 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:24:12,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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)] Ended with exit code 0 [2022-11-20 12:24:12,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:24:12,353 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:12,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1226386903, now seen corresponding path program 1 times [2022-11-20 12:24:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:12,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361825690] [2022-11-20 12:24:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:12,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:24:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:12,361 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:24:12,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:24:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:24:39,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 6980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:24:39,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:24:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:24:39,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:24:39,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:24:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361825690] [2022-11-20 12:24:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361825690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:24:39,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:24:39,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:24:39,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47796607] [2022-11-20 12:24:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:24:39,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:24:39,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:24:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:24:39,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:24:39,649 INFO L87 Difference]: Start difference. First operand 39977 states and 58083 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:24:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:24:44,314 INFO L93 Difference]: Finished difference Result 79796 states and 115947 transitions. [2022-11-20 12:24:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:24:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 731 [2022-11-20 12:24:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:24:44,574 INFO L225 Difference]: With dead ends: 79796 [2022-11-20 12:24:44,575 INFO L226 Difference]: Without dead ends: 39945 [2022-11-20 12:24:45,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 729 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:24:45,080 INFO L413 NwaCegarLoop]: 4170 mSDtfsCounter, 4156 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:24:45,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 4170 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:24:45,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39945 states. [2022-11-20 12:24:49,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39945 to 39945. [2022-11-20 12:24:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39945 states, 28121 states have (on average 1.3697948152626152) internal successors, (38520), 28276 states have internal predecessors, (38520), 9750 states have call successors, (9750), 2074 states have call predecessors, (9750), 2073 states have return successors, (9749), 9746 states have call predecessors, (9749), 9749 states have call successors, (9749) [2022-11-20 12:24:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39945 states to 39945 states and 58019 transitions. [2022-11-20 12:24:50,165 INFO L78 Accepts]: Start accepts. Automaton has 39945 states and 58019 transitions. Word has length 731 [2022-11-20 12:24:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:24:50,166 INFO L495 AbstractCegarLoop]: Abstraction has 39945 states and 58019 transitions. [2022-11-20 12:24:50,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 12:24:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 39945 states and 58019 transitions. [2022-11-20 12:24:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2022-11-20 12:24:50,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:24:50,179 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 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] [2022-11-20 12:24:50,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 12:24:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:24:50,405 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:24:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:24:50,406 INFO L85 PathProgramCache]: Analyzing trace with hash -595160522, now seen corresponding path program 1 times [2022-11-20 12:24:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:24:50,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583595168] [2022-11-20 12:24:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:24:50,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:24:50,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:24:50,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:24:50,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 (18)] Waiting until timeout for monitored process [2022-11-20 12:25:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:25:17,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 6997 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:25:17,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:25:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9794 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 9252 trivial. 0 not checked. [2022-11-20 12:25:18,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:25:18,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:25:18,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583595168] [2022-11-20 12:25:18,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583595168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:25:18,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:25:18,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:25:18,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645808395] [2022-11-20 12:25:18,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:25:18,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:25:18,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:25:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:25:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:25:18,434 INFO L87 Difference]: Start difference. First operand 39945 states and 58019 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 12:25:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:25:22,605 INFO L93 Difference]: Finished difference Result 78766 states and 114343 transitions. [2022-11-20 12:25:22,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:25:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 727 [2022-11-20 12:25:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:25:22,828 INFO L225 Difference]: With dead ends: 78766 [2022-11-20 12:25:22,829 INFO L226 Difference]: Without dead ends: 38947 [2022-11-20 12:25:23,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:25:23,008 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4061 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:25:23,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 4074 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:25:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38947 states. [2022-11-20 12:25:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38947 to 38947. [2022-11-20 12:25:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38947 states, 27397 states have (on average 1.3684710004745044) internal successors, (37492), 27536 states have internal predecessors, (37492), 9494 states have call successors, (9494), 2056 states have call predecessors, (9494), 2055 states have return successors, (9493), 9490 states have call predecessors, (9493), 9493 states have call successors, (9493) [2022-11-20 12:25:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38947 states to 38947 states and 56479 transitions. [2022-11-20 12:25:27,933 INFO L78 Accepts]: Start accepts. Automaton has 38947 states and 56479 transitions. Word has length 727 [2022-11-20 12:25:27,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:25:27,934 INFO L495 AbstractCegarLoop]: Abstraction has 38947 states and 56479 transitions. [2022-11-20 12:25:27,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 12:25:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 38947 states and 56479 transitions. [2022-11-20 12:25:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2022-11-20 12:25:27,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:25:27,949 INFO L195 NwaCegarLoop]: trace histogram [74, 25, 25, 25, 24, 24, 24, 24, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 3, 3, 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] [2022-11-20 12:25:28,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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 (18)] Ended with exit code 0 [2022-11-20 12:25:28,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:25:28,177 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:25:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:25:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1476219851, now seen corresponding path program 1 times [2022-11-20 12:25:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:25:28,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900528318] [2022-11-20 12:25:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:25:28,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:25:28,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:25:28,184 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:25:28,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1ea905-8980-42ac-bc93-f1270ee46e43/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