./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- 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 09:28:44,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:44,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:45,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:45,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:45,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:45,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:45,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:45,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:45,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:45,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:45,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:45,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:45,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:45,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:45,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:45,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:45,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:45,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:45,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:45,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:45,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:45,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:45,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:45,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:45,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:45,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:45,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:45,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:45,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:45,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:45,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:45,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:45,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:45,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:45,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:45,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:45,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:45,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:45,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:45,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:45,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:28:45,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:45,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:45,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:45,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:45,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:45,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:45,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:45,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:45,145 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:45,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:45,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:45,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:45,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:45,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:45,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:45,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:45,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:45,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:45,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:45,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:45,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:45,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:45,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:45,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:45,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:45,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:45,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:45,153 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:45,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:45,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:45,154 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2022-11-20 09:28:45,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:45,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:45,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:45,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:45,495 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:45,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 09:28:48,596 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:49,304 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:49,305 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 09:28:49,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/fd7d8591d/a9c410c7dc6247d4abfaaf000651453d/FLAGfaf1521a3 [2022-11-20 09:28:49,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/fd7d8591d/a9c410c7dc6247d4abfaaf000651453d [2022-11-20 09:28:49,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:49,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:49,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:49,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:49,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:49,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:49" (1/1) ... [2022-11-20 09:28:49,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621f820d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:49, skipping insertion in model container [2022-11-20 09:28:49,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:49" (1/1) ... [2022-11-20 09:28:49,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:49,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:50,302 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 09:28:50,311 INFO L158 Benchmark]: Toolchain (without parser) took 929.91ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 52.4MB in the end (delta: 60.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-20 09:28:50,312 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:50,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 926.11ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 52.4MB in the end (delta: 60.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-20 09:28:50,315 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 117.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 926.11ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 52.4MB in the end (delta: 60.0MB). Peak memory consumption was 60.8MB. 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- 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 09:28:52,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:52,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:52,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:52,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:52,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:52,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:52,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:52,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:52,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:52,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:52,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:52,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:52,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:52,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:52,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:52,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:52,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:52,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:52,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:52,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:52,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:52,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:52,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:52,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:52,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:52,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:52,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:52,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:52,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:52,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:52,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:52,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:52,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:52,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:52,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:52,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:52,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:52,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:52,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:52,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:52,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:28:52,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:52,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:52,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:52,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:52,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:52,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:52,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:52,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:52,741 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:52,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:52,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:52,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:52,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:52,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:52,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:28:52,744 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:28:52,744 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:28:52,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:52,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:52,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:52,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:52,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:52,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:52,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:52,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:52,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:52,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:52,746 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:28:52,746 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:28:52,747 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:52,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:52,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:52,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:28:52,748 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2022-11-20 09:28:53,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:53,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:53,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:53,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:53,245 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:53,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 09:28:56,490 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:57,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:57,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 09:28:57,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/2d8a63fa4/305242e604c945c0aabaf4872f53e724/FLAGd8f124866 [2022-11-20 09:28:57,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/data/2d8a63fa4/305242e604c945c0aabaf4872f53e724 [2022-11-20 09:28:57,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:57,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:57,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:57,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:57,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:57,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:57" (1/1) ... [2022-11-20 09:28:57,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a57033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:57, skipping insertion in model container [2022-11-20 09:28:57,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:57" (1/1) ... [2022-11-20 09:28:57,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:57,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:00,279 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2022-11-20 09:29:00,284 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2022-11-20 09:29:00,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:00,382 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:29:00,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:00,816 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2022-11-20 09:29:00,817 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2022-11-20 09:29:00,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:00,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:01,337 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2022-11-20 09:29:01,338 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_c0bd5c32-d907-4bb9-b46e-b1695948439d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2022-11-20 09:29:01,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:01,714 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:01,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01 WrapperNode [2022-11-20 09:29:01,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:01,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:01,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:01,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:01,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:01,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:01,983 INFO L138 Inliner]: procedures = 447, calls = 1883, calls flagged for inlining = 214, calls inlined = 198, statements flattened = 4236 [2022-11-20 09:29:01,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:01,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:01,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:01,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:01,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:01,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,311 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:02,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:02,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:02,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:02,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (1/1) ... [2022-11-20 09:29:02,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:02,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:02,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:02,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_90 [2022-11-20 09:29:02,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_90 [2022-11-20 09:29:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2022-11-20 09:29:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2022-11-20 09:29:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 09:29:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 09:29:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 09:29:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 09:29:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:29:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:29:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 09:29:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 09:29:02,472 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 09:29:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 09:29:02,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:29:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:29:02,472 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 09:29:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 09:29:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 09:29:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 09:29:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:29:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:29:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:29:02,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:29:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 09:29:02,475 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 09:29:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 09:29:02,476 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 09:29:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2022-11-20 09:29:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2022-11-20 09:29:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 09:29:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 09:29:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:29:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:29:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:29:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:29:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2022-11-20 09:29:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2022-11-20 09:29:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2022-11-20 09:29:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2022-11-20 09:29:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 09:29:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 09:29:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:29:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:29:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:29:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-20 09:29:02,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-20 09:29:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:29:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:29:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2022-11-20 09:29:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2022-11-20 09:29:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 09:29:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 09:29:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2022-11-20 09:29:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2022-11-20 09:29:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:29:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:29:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 09:29:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 09:29:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 09:29:02,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 09:29:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 09:29:02,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 09:29:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 09:29:02,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 09:29:02,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:29:02,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:29:02,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 09:29:02,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 09:29:02,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 09:29:02,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 09:29:02,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:29:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:29:02,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:29:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:29:02,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:29:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 09:29:02,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 09:29:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:29:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:29:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 09:29:02,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 09:29:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:29:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:29:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:29:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:29:02,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-20 09:29:02,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-20 09:29:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-20 09:29:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-20 09:29:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 09:29:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 09:29:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 09:29:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 09:29:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 09:29:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 09:29:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 09:29:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 09:29:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:29:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_102 [2022-11-20 09:29:02,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_102 [2022-11-20 09:29:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2022-11-20 09:29:02,493 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2022-11-20 09:29:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 09:29:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 09:29:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:02,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:29:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:29:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:29:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:29:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:29:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:29:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:29:02,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:29:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-20 09:29:02,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-20 09:29:02,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 09:29:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 09:29:02,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 09:29:02,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 09:29:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2022-11-20 09:29:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2022-11-20 09:29:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 09:29:02,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 09:29:02,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:29:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:29:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:29:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:29:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 09:29:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 09:29:02,508 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 09:29:02,508 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 09:29:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 09:29:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 09:29:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2022-11-20 09:29:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2022-11-20 09:29:02,509 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 09:29:02,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 09:29:02,510 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:29:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:29:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 09:29:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 09:29:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:29:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:29:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 09:29:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 09:29:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:29:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:29:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-20 09:29:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-20 09:29:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:29:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:29:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 09:29:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 09:29:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_101 [2022-11-20 09:29:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_101 [2022-11-20 09:29:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 09:29:02,513 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 09:29:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2022-11-20 09:29:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2022-11-20 09:29:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:29:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:29:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2022-11-20 09:29:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2022-11-20 09:29:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2022-11-20 09:29:02,515 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2022-11-20 09:29:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:29:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:29:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:29:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:29:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:29:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:29:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:29:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:29:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 09:29:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 09:29:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 09:29:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 09:29:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:29:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:29:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-11-20 09:29:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-11-20 09:29:03,581 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:03,587 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:18,144 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:29:50,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:29:50,196 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:50,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:50,215 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:29:50,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:50 BoogieIcfgContainer [2022-11-20 09:29:50,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:50,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:50,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:50,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:50,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:57" (1/3) ... [2022-11-20 09:29:50,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d8ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:50, skipping insertion in model container [2022-11-20 09:29:50,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:01" (2/3) ... [2022-11-20 09:29:50,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d8ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:50, skipping insertion in model container [2022-11-20 09:29:50,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:50" (3/3) ... [2022-11-20 09:29:50,230 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 09:29:50,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:50,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:50,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:50,350 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;@1b18afd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:50,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 1557 states, 1085 states have (on average 1.280184331797235) internal successors, (1389), 1104 states have internal predecessors, (1389), 390 states have call successors, (390), 82 states have call predecessors, (390), 81 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2022-11-20 09:29:50,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-20 09:29:50,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:50,398 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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] [2022-11-20 09:29:50,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:50,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2138603741, now seen corresponding path program 1 times [2022-11-20 09:29:50,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:50,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985873786] [2022-11-20 09:29:50,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,425 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 09:29:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:50,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:50,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:52,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:52,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-20 09:29:52,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:52,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:52,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985873786] [2022-11-20 09:29:52,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985873786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:52,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:52,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812440319] [2022-11-20 09:29:52,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:52,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:52,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:52,439 INFO L87 Difference]: Start difference. First operand has 1557 states, 1085 states have (on average 1.280184331797235) internal successors, (1389), 1104 states have internal predecessors, (1389), 390 states have call successors, (390), 82 states have call predecessors, (390), 81 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:29:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:53,044 INFO L93 Difference]: Finished difference Result 4507 states and 6339 transitions. [2022-11-20 09:29:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:53,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 170 [2022-11-20 09:29:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:53,084 INFO L225 Difference]: With dead ends: 4507 [2022-11-20 09:29:53,084 INFO L226 Difference]: Without dead ends: 2894 [2022-11-20 09:29:53,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:53,102 INFO L413 NwaCegarLoop]: 2682 mSDtfsCounter, 2036 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:53,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 4755 Invalid, 12 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:29:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2022-11-20 09:29:53,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2890. [2022-11-20 09:29:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2052 states have (on average 1.27729044834308) internal successors, (2621), 2090 states have internal predecessors, (2621), 682 states have call successors, (682), 157 states have call predecessors, (682), 155 states have return successors, (687), 671 states have call predecessors, (687), 682 states have call successors, (687) [2022-11-20 09:29:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3990 transitions. [2022-11-20 09:29:53,359 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3990 transitions. Word has length 170 [2022-11-20 09:29:53,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:53,360 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 3990 transitions. [2022-11-20 09:29:53,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:29:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3990 transitions. [2022-11-20 09:29:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 09:29:53,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:53,375 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2022-11-20 09:29:53,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:53,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:53,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:53,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash 638733897, now seen corresponding path program 1 times [2022-11-20 09:29:53,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:53,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023647330] [2022-11-20 09:29:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:53,595 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 09:29:53,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:53,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:53,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:55,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:55,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-20 09:29:55,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:55,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:55,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023647330] [2022-11-20 09:29:55,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023647330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:55,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:55,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63212541] [2022-11-20 09:29:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:55,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:55,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:55,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:55,477 INFO L87 Difference]: Start difference. First operand 2890 states and 3990 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:29:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:56,288 INFO L93 Difference]: Finished difference Result 7576 states and 10438 transitions. [2022-11-20 09:29:56,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:56,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 178 [2022-11-20 09:29:56,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:56,322 INFO L225 Difference]: With dead ends: 7576 [2022-11-20 09:29:56,322 INFO L226 Difference]: Without dead ends: 4709 [2022-11-20 09:29:56,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:56,338 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1340 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:56,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 4346 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:29:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2022-11-20 09:29:56,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4705. [2022-11-20 09:29:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4705 states, 3362 states have (on average 1.2724568709101725) internal successors, (4278), 3421 states have internal predecessors, (4278), 1081 states have call successors, (1081), 263 states have call predecessors, (1081), 261 states have return successors, (1086), 1067 states have call predecessors, (1086), 1081 states have call successors, (1086) [2022-11-20 09:29:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4705 states to 4705 states and 6445 transitions. [2022-11-20 09:29:56,644 INFO L78 Accepts]: Start accepts. Automaton has 4705 states and 6445 transitions. Word has length 178 [2022-11-20 09:29:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:56,645 INFO L495 AbstractCegarLoop]: Abstraction has 4705 states and 6445 transitions. [2022-11-20 09:29:56,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:29:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4705 states and 6445 transitions. [2022-11-20 09:29:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 09:29:56,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:56,654 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:56,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:56,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:56,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:56,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1470047512, now seen corresponding path program 1 times [2022-11-20 09:29:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890379199] [2022-11-20 09:29:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:56,884 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 09:29:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:56,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:56,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:29:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:58,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:58,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-11-20 09:29:58,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:58,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:58,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890379199] [2022-11-20 09:29:58,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890379199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:58,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:58,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243264525] [2022-11-20 09:29:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:58,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:58,449 INFO L87 Difference]: Start difference. First operand 4705 states and 6445 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:29:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:59,270 INFO L93 Difference]: Finished difference Result 13214 states and 18031 transitions. [2022-11-20 09:29:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:59,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 187 [2022-11-20 09:29:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:59,345 INFO L225 Difference]: With dead ends: 13214 [2022-11-20 09:29:59,345 INFO L226 Difference]: Without dead ends: 8532 [2022-11-20 09:29:59,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:59,374 INFO L413 NwaCegarLoop]: 2442 mSDtfsCounter, 1742 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:59,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4460 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:29:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8532 states. [2022-11-20 09:29:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8532 to 8527. [2022-11-20 09:30:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8527 states, 6071 states have (on average 1.2635480151540108) internal successors, (7671), 6176 states have internal predecessors, (7671), 1952 states have call successors, (1952), 508 states have call predecessors, (1952), 503 states have return successors, (1975), 1919 states have call predecessors, (1975), 1952 states have call successors, (1975) [2022-11-20 09:30:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8527 states to 8527 states and 11598 transitions. [2022-11-20 09:30:00,132 INFO L78 Accepts]: Start accepts. Automaton has 8527 states and 11598 transitions. Word has length 187 [2022-11-20 09:30:00,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:00,133 INFO L495 AbstractCegarLoop]: Abstraction has 8527 states and 11598 transitions. [2022-11-20 09:30:00,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:30:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8527 states and 11598 transitions. [2022-11-20 09:30:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 09:30:00,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:00,141 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:00,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:00,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:00,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:00,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:00,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1565698767, now seen corresponding path program 1 times [2022-11-20 09:30:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:00,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679420609] [2022-11-20 09:30:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:00,365 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 09:30:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:00,367 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:00,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:01,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:01,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-11-20 09:30:01,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:01,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:01,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679420609] [2022-11-20 09:30:01,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679420609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:01,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:01,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:01,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660070650] [2022-11-20 09:30:01,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:01,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:01,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:01,846 INFO L87 Difference]: Start difference. First operand 8527 states and 11598 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:30:02,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:02,952 INFO L93 Difference]: Finished difference Result 25475 states and 34662 transitions. [2022-11-20 09:30:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:02,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 193 [2022-11-20 09:30:02,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:03,060 INFO L225 Difference]: With dead ends: 25475 [2022-11-20 09:30:03,061 INFO L226 Difference]: Without dead ends: 16971 [2022-11-20 09:30:03,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:03,094 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 2025 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:03,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 4795 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16971 states. [2022-11-20 09:30:04,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16971 to 16953. [2022-11-20 09:30:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16953 states, 12059 states have (on average 1.2633717555352848) internal successors, (15235), 12281 states have internal predecessors, (15235), 3887 states have call successors, (3887), 1016 states have call predecessors, (3887), 1006 states have return successors, (3933), 3809 states have call predecessors, (3933), 3887 states have call successors, (3933) [2022-11-20 09:30:04,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16953 states to 16953 states and 23055 transitions. [2022-11-20 09:30:04,454 INFO L78 Accepts]: Start accepts. Automaton has 16953 states and 23055 transitions. Word has length 193 [2022-11-20 09:30:04,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:04,456 INFO L495 AbstractCegarLoop]: Abstraction has 16953 states and 23055 transitions. [2022-11-20 09:30:04,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 09:30:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 16953 states and 23055 transitions. [2022-11-20 09:30:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-20 09:30:04,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:04,473 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:04,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:04,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:04,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1899496118, now seen corresponding path program 1 times [2022-11-20 09:30:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:04,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75196715] [2022-11-20 09:30:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:04,692 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 09:30:04,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:04,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:04,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:06,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:06,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-11-20 09:30:06,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:06,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:06,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75196715] [2022-11-20 09:30:06,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75196715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:06,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:06,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:06,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652742935] [2022-11-20 09:30:06,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:06,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:06,268 INFO L87 Difference]: Start difference. First operand 16953 states and 23055 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 09:30:07,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:07,657 INFO L93 Difference]: Finished difference Result 34607 states and 46931 transitions. [2022-11-20 09:30:07,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 213 [2022-11-20 09:30:07,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:07,755 INFO L225 Difference]: With dead ends: 34607 [2022-11-20 09:30:07,755 INFO L226 Difference]: Without dead ends: 17677 [2022-11-20 09:30:07,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:07,813 INFO L413 NwaCegarLoop]: 2305 mSDtfsCounter, 760 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:07,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 4338 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17677 states. [2022-11-20 09:30:09,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17677 to 17675. [2022-11-20 09:30:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17675 states, 12578 states have (on average 1.2592622038479886) internal successors, (15839), 12805 states have internal predecessors, (15839), 4009 states have call successors, (4009), 1097 states have call predecessors, (4009), 1087 states have return successors, (4055), 3931 states have call predecessors, (4055), 4009 states have call successors, (4055) [2022-11-20 09:30:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17675 states to 17675 states and 23903 transitions. [2022-11-20 09:30:09,309 INFO L78 Accepts]: Start accepts. Automaton has 17675 states and 23903 transitions. Word has length 213 [2022-11-20 09:30:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:09,310 INFO L495 AbstractCegarLoop]: Abstraction has 17675 states and 23903 transitions. [2022-11-20 09:30:09,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 09:30:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 17675 states and 23903 transitions. [2022-11-20 09:30:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 09:30:09,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:09,325 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:09,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:09,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:09,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:09,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:09,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2134628454, now seen corresponding path program 1 times [2022-11-20 09:30:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:09,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512206223] [2022-11-20 09:30:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:09,544 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 09:30:09,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:09,546 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:09,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:11,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:11,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-11-20 09:30:11,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:11,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:11,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512206223] [2022-11-20 09:30:11,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512206223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:11,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:11,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:11,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598539611] [2022-11-20 09:30:11,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:11,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:11,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:11,253 INFO L87 Difference]: Start difference. First operand 17675 states and 23903 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:30:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:13,015 INFO L93 Difference]: Finished difference Result 47577 states and 64550 transitions. [2022-11-20 09:30:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:13,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 234 [2022-11-20 09:30:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:13,173 INFO L225 Difference]: With dead ends: 47577 [2022-11-20 09:30:13,174 INFO L226 Difference]: Without dead ends: 29925 [2022-11-20 09:30:13,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:13,233 INFO L413 NwaCegarLoop]: 2413 mSDtfsCounter, 1777 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:13,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 4423 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:30:13,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29925 states. [2022-11-20 09:30:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29925 to 29913. [2022-11-20 09:30:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29913 states, 21142 states have (on average 1.2644499101314919) internal successors, (26733), 21556 states have internal predecessors, (26733), 6876 states have call successors, (6876), 1914 states have call predecessors, (6876), 1894 states have return successors, (6974), 6710 states have call predecessors, (6974), 6876 states have call successors, (6974) [2022-11-20 09:30:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29913 states to 29913 states and 40583 transitions. [2022-11-20 09:30:15,667 INFO L78 Accepts]: Start accepts. Automaton has 29913 states and 40583 transitions. Word has length 234 [2022-11-20 09:30:15,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:15,668 INFO L495 AbstractCegarLoop]: Abstraction has 29913 states and 40583 transitions. [2022-11-20 09:30:15,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:30:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 29913 states and 40583 transitions. [2022-11-20 09:30:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-20 09:30:15,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:15,678 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 9, 9, 9, 9, 9, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:15,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:15,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:15,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:15,901 INFO L85 PathProgramCache]: Analyzing trace with hash 972261791, now seen corresponding path program 1 times [2022-11-20 09:30:15,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:15,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984404356] [2022-11-20 09:30:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:15,904 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 09:30:15,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:15,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:15,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:17,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:17,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-20 09:30:17,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:17,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:17,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984404356] [2022-11-20 09:30:17,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984404356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:17,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:17,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921632078] [2022-11-20 09:30:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:17,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:17,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:17,919 INFO L87 Difference]: Start difference. First operand 29913 states and 40583 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 09:30:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:20,313 INFO L93 Difference]: Finished difference Result 70033 states and 94973 transitions. [2022-11-20 09:30:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:20,314 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), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 242 [2022-11-20 09:30:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:20,556 INFO L225 Difference]: With dead ends: 70033 [2022-11-20 09:30:20,557 INFO L226 Difference]: Without dead ends: 40199 [2022-11-20 09:30:20,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:20,671 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 1336 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 5042 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:20,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 5042 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40199 states. [2022-11-20 09:30:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40199 to 40181. [2022-11-20 09:30:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40181 states, 28476 states have (on average 1.261307767944936) internal successors, (35917), 29016 states have internal predecessors, (35917), 9106 states have call successors, (9106), 2618 states have call predecessors, (9106), 2598 states have return successors, (9204), 8904 states have call predecessors, (9204), 9106 states have call successors, (9204) [2022-11-20 09:30:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40181 states to 40181 states and 54227 transitions. [2022-11-20 09:30:23,726 INFO L78 Accepts]: Start accepts. Automaton has 40181 states and 54227 transitions. Word has length 242 [2022-11-20 09:30:23,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:23,727 INFO L495 AbstractCegarLoop]: Abstraction has 40181 states and 54227 transitions. [2022-11-20 09:30:23,727 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), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 09:30:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 40181 states and 54227 transitions. [2022-11-20 09:30:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-20 09:30:23,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:23,736 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:23,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:23,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:23,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1579876620, now seen corresponding path program 1 times [2022-11-20 09:30:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:23,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765463591] [2022-11-20 09:30:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:23,963 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 09:30:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:23,965 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:24,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:25,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:25,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-20 09:30:25,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:25,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:25,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765463591] [2022-11-20 09:30:25,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765463591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:25,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:25,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968264247] [2022-11-20 09:30:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:25,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:25,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:25,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:25,576 INFO L87 Difference]: Start difference. First operand 40181 states and 54227 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 09:30:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:29,508 INFO L93 Difference]: Finished difference Result 118225 states and 159709 transitions. [2022-11-20 09:30:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:29,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 269 [2022-11-20 09:30:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:29,872 INFO L225 Difference]: With dead ends: 118225 [2022-11-20 09:30:29,872 INFO L226 Difference]: Without dead ends: 78123 [2022-11-20 09:30:30,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:30,001 INFO L413 NwaCegarLoop]: 4053 mSDtfsCounter, 1989 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 6112 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:30,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 6112 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:30,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78123 states. [2022-11-20 09:30:34,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78123 to 78121. [2022-11-20 09:30:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78121 states, 55442 states have (on average 1.262274088236355) internal successors, (69983), 56442 states have internal predecessors, (69983), 17626 states have call successors, (17626), 5092 states have call predecessors, (17626), 5052 states have return successors, (17822), 17302 states have call predecessors, (17822), 17626 states have call successors, (17822) [2022-11-20 09:30:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78121 states to 78121 states and 105431 transitions. [2022-11-20 09:30:35,818 INFO L78 Accepts]: Start accepts. Automaton has 78121 states and 105431 transitions. Word has length 269 [2022-11-20 09:30:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:35,829 INFO L495 AbstractCegarLoop]: Abstraction has 78121 states and 105431 transitions. [2022-11-20 09:30:35,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 09:30:35,829 INFO L276 IsEmpty]: Start isEmpty. Operand 78121 states and 105431 transitions. [2022-11-20 09:30:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-20 09:30:35,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:35,852 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:35,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:36,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:36,054 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:30:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1067727734, now seen corresponding path program 1 times [2022-11-20 09:30:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657889009] [2022-11-20 09:30:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:36,056 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 09:30:36,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:36,058 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:36,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0bd5c32-d907-4bb9-b46e-b1695948439d/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 09:30:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:37,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:37,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2022-11-20 09:30:37,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:37,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:37,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657889009] [2022-11-20 09:30:37,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657889009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:37,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:37,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:37,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336547856] [2022-11-20 09:30:37,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:37,476 INFO L87 Difference]: Start difference. First operand 78121 states and 105431 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)