./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.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_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- 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 20:45:12,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:45:12,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:45:12,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:45:12,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:45:12,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:45:12,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:45:12,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:45:12,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:45:12,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:45:12,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:45:12,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:45:12,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:45:12,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:45:12,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:45:12,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:45:12,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:45:12,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:45:12,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:45:12,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:45:12,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:45:12,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:45:12,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:45:12,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:45:12,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:45:12,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:45:12,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:45:12,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:45:12,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:45:12,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:45:12,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:45:12,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:45:12,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:45:12,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:45:12,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:45:12,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:45:12,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:45:12,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:45:12,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:45:12,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:45:12,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:45:12,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:45:12,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:45:12,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:45:12,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:45:12,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:45:12,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:45:12,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:45:12,250 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:45:12,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:45:12,251 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:45:12,251 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:45:12,251 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:45:12,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:45:12,252 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:45:12,252 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:45:12,252 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:45:12,252 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:45:12,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:45:12,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:45:12,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:45:12,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:45:12,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:45:12,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:45:12,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:45:12,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:45:12,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:45:12,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:45:12,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:45:12,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:45:12,257 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_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2022-11-20 20:45:12,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:45:12,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:45:12,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:45:12,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:45:12,509 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:45:12,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-20 20:45:15,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:45:16,183 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:45:16,183 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-20 20:45:16,242 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/362744db2/eb5ddd0b000d4d138d95fa08dc0a88b0/FLAG5169cb785 [2022-11-20 20:45:16,262 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/362744db2/eb5ddd0b000d4d138d95fa08dc0a88b0 [2022-11-20 20:45:16,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:45:16,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:45:16,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:45:16,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:45:16,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:45:16,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:16" (1/1) ... [2022-11-20 20:45:16,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e62dbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:16, skipping insertion in model container [2022-11-20 20:45:16,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:16" (1/1) ... [2022-11-20 20:45:16,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:45:16,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:45:17,250 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 20:45:17,271 INFO L158 Benchmark]: Toolchain (without parser) took 1002.18ms. Allocated memory is still 190.8MB. Free memory was 145.7MB in the beginning and 148.6MB in the end (delta: -2.9MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-20 20:45:17,272 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:45:17,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 996.38ms. Allocated memory is still 190.8MB. Free memory was 145.2MB in the beginning and 148.6MB in the end (delta: -3.3MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-20 20:45:17,274 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 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 996.38ms. Allocated memory is still 190.8MB. Free memory was 145.2MB in the beginning and 148.6MB in the end (delta: -3.3MB). Peak memory consumption was 77.3MB. 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_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf --- 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 20:45:19,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:45:19,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:45:19,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:45:19,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:45:19,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:45:19,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:45:19,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:45:19,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:45:19,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:45:19,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:45:19,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:45:19,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:45:19,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:45:19,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:45:19,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:45:19,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:45:19,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:45:19,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:45:19,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:45:19,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:45:19,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:45:19,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:45:19,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:45:19,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:45:19,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:45:19,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:45:19,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:45:19,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:45:19,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:45:19,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:45:19,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:45:19,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:45:19,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:45:19,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:45:19,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:45:19,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:45:19,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:45:19,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:45:19,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:45:19,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:45:19,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:45:19,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:45:19,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:45:19,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:45:19,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:45:19,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:45:19,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:45:19,834 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:45:19,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:45:19,834 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:45:19,834 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:45:19,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:45:19,835 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:45:19,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:45:19,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:45:19,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:45:19,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:45:19,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:45:19,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:45:19,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:45:19,838 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:45:19,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:45:19,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:45:19,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:45:19,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:45:19,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:45:19,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:45:19,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:45:19,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:45:19,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:45:19,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:45:19,841 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:45:19,841 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:45:19,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:45:19,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:45:19,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:45:19,842 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_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bcb37c4379f8eccb740fb6c6359bb8950e56f103e832e8f7687e811a6b9e6cf [2022-11-20 20:45:20,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:45:20,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:45:20,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:45:20,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:45:20,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:45:20,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-20 20:45:23,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:45:23,992 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:45:23,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-20 20:45:24,037 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/6c791829a/b76e4e3da9ce47a6851cff77a0b7a064/FLAG44a51c531 [2022-11-20 20:45:24,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/data/6c791829a/b76e4e3da9ce47a6851cff77a0b7a064 [2022-11-20 20:45:24,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:45:24,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:45:24,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:45:24,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:45:24,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:45:24,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:24" (1/1) ... [2022-11-20 20:45:24,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613a1420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:24, skipping insertion in model container [2022-11-20 20:45:24,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:45:24" (1/1) ... [2022-11-20 20:45:24,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:45:24,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:45:27,684 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2022-11-20 20:45:27,688 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2022-11-20 20:45:27,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:45:27,762 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:45:27,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:45:28,359 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2022-11-20 20:45:28,359 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2022-11-20 20:45:28,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:45:28,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:45:28,916 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345848,345861] [2022-11-20 20:45:28,916 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_53794172-3847-47a3-b4ed-6b8908422173/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[345993,346006] [2022-11-20 20:45:28,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:45:29,126 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:45:29,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29 WrapperNode [2022-11-20 20:45:29,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:45:29,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:45:29,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:45:29,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:45:29,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,467 INFO L138 Inliner]: procedures = 451, calls = 2346, calls flagged for inlining = 211, calls inlined = 196, statements flattened = 5168 [2022-11-20 20:45:29,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:45:29,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:45:29,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:45:29,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:45:29,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:45:29,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:45:29,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:45:29,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:45:29,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (1/1) ... [2022-11-20 20:45:29,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:45:29,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:45:29,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:45:29,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:45:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-11-20 20:45:29,889 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-11-20 20:45:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 20:45:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 20:45:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:45:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:45:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 20:45:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 20:45:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-11-20 20:45:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-11-20 20:45:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-20 20:45:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-20 20:45:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:45:29,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:45:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-11-20 20:45:29,892 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-11-20 20:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 20:45:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 20:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-20 20:45:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-20 20:45:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-11-20 20:45:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-11-20 20:45:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-11-20 20:45:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-11-20 20:45:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 20:45:29,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 20:45:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:45:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:45:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 20:45:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 20:45:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:45:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:45:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 20:45:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 20:45:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:45:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:45:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:45:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:45:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:45:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 20:45:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 20:45:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-11-20 20:45:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-11-20 20:45:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-11-20 20:45:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-11-20 20:45:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 20:45:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 20:45:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-11-20 20:45:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-11-20 20:45:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-20 20:45:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-20 20:45:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-20 20:45:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-20 20:45:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-11-20 20:45:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-11-20 20:45:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-11-20 20:45:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-11-20 20:45:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:45:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:45:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 20:45:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 20:45:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 20:45:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 20:45:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:45:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:45:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:45:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:45:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 20:45:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 20:45:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-11-20 20:45:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-11-20 20:45:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-11-20 20:45:29,906 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-11-20 20:45:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 20:45:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 20:45:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 20:45:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 20:45:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-11-20 20:45:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-11-20 20:45:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-11-20 20:45:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-11-20 20:45:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-11-20 20:45:29,909 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-11-20 20:45:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:45:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-20 20:45:29,909 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-20 20:45:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2022-11-20 20:45:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2022-11-20 20:45:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:45:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:45:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-11-20 20:45:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-11-20 20:45:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:45:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:45:29,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:45:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:45:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:45:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:45:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 20:45:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:45:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:45:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-11-20 20:45:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-11-20 20:45:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-20 20:45:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-20 20:45:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-20 20:45:29,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-20 20:45:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:45:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:45:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 20:45:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 20:45:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_11_2 [2022-11-20 20:45:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_11_2 [2022-11-20 20:45:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 20:45:29,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 20:45:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-20 20:45:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-20 20:45:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-11-20 20:45:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-11-20 20:45:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-11-20 20:45:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-11-20 20:45:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_detect [2022-11-20 20:45:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_detect [2022-11-20 20:45:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:45:29,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:45:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:45:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:45:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-20 20:45:29,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-20 20:45:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:45:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:45:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:45:29,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:45:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_exit [2022-11-20 20:45:29,931 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_exit [2022-11-20 20:45:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 20:45:29,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 20:45:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-20 20:45:29,932 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-20 20:45:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-11-20 20:45:29,932 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-11-20 20:45:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-11-20 20:45:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-11-20 20:45:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 20:45:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 20:45:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 20:45:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 20:45:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 20:45:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 20:45:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-20 20:45:29,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-20 20:45:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:45:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-11-20 20:45:29,935 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-11-20 20:45:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 20:45:29,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 20:45:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:45:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 20:45:29,936 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 20:45:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_eisa_cleanup [2022-11-20 20:45:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_eisa_cleanup [2022-11-20 20:45:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:45:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:45:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:45:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:45:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:45:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-11-20 20:45:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-11-20 20:45:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-11-20 20:45:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-11-20 20:45:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-20 20:45:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-20 20:45:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 20:45:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 20:45:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 20:45:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 20:45:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:45:29,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:45:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-20 20:45:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-20 20:45:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-11-20 20:45:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-11-20 20:45:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-11-20 20:45:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-11-20 20:45:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 20:45:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 20:45:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 20:45:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 20:45:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-11-20 20:45:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-11-20 20:45:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-20 20:45:29,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-20 20:45:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-11-20 20:45:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-11-20 20:45:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-11-20 20:45:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-11-20 20:45:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-11-20 20:45:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-11-20 20:45:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:45:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:45:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-11-20 20:45:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-11-20 20:45:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 20:45:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 20:45:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-11-20 20:45:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-11-20 20:45:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-11-20 20:45:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-11-20 20:45:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-11-20 20:45:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-11-20 20:45:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_97 [2022-11-20 20:45:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_97 [2022-11-20 20:45:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:45:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:45:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-11-20 20:45:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-11-20 20:45:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 20:45:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 20:45:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 20:45:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 20:45:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-20 20:45:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-20 20:45:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-20 20:45:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-20 20:45:29,946 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-20 20:45:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:45:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:45:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-20 20:45:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-20 20:45:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-20 20:45:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-20 20:45:31,026 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:45:31,033 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:45:40,533 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:46:12,431 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret323#1;havoc tlan_eisa_probe_#t~ret323#1;havoc tlan_eisa_probe_#t~nondet324#1; [2022-11-20 20:46:12,432 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6907: SUMMARY for call tlan_eisa_probe_#t~ret323#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,432 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-20 20:46:12,432 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-20 20:46:12,432 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6975: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-11-20 20:46:12,432 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-20 20:46:12,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-20 20:46:12,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6912-1: call tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset;havoc tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset; [2022-11-20 20:46:12,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-11-20 20:46:12,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet333#1; [2022-11-20 20:46:12,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6982: assume !(16bv32 == ~debug~0); [2022-11-20 20:46:12,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2022-11-20 20:46:12,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6922: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2022-11-20 20:46:12,442 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1; [2022-11-20 20:46:12,443 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-11-20 20:46:12,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-11-20 20:46:12,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6929: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-11-20 20:46:12,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6931: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-20 20:46:12,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1; [2022-11-20 20:46:12,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret328#1;havoc tlan_eisa_probe_#t~ret328#1; [2022-11-20 20:46:12,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6937: SUMMARY for call tlan_eisa_probe_#t~ret328#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6939: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6941: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1; [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7013-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-11-20 20:46:12,450 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet334#1; [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951-1: assume !(16bv32 == ~debug~0); [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-20 20:46:12,451 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956-2: SUMMARY for call tlan_eisa_probe_#t~ret331#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet330#1; [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6956: assume !(16bv32 == ~debug~0); [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-20 20:46:12,452 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6963: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret331#1;havoc tlan_eisa_probe_#t~ret331#1; [2022-11-20 20:46:12,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-20 20:46:12,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6898-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-20 20:46:12,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:46:12,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-20 20:46:12,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6966: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~nondet322#1; [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6900: SUMMARY for call tlan_eisa_probe_#t~ret321#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-20 20:46:12,455 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-11-20 20:46:12,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet325#1; [2022-11-20 20:46:12,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6905-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-20 20:46:12,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:46:12,616 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:46:12,620 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:46:12,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:12 BoogieIcfgContainer [2022-11-20 20:46:12,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:46:12,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:46:12,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:46:12,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:46:12,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:45:24" (1/3) ... [2022-11-20 20:46:12,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0e986c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:12, skipping insertion in model container [2022-11-20 20:46:12,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:45:29" (2/3) ... [2022-11-20 20:46:12,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0e986c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:46:12, skipping insertion in model container [2022-11-20 20:46:12,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:46:12" (3/3) ... [2022-11-20 20:46:12,636 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-20 20:46:12,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:46:12,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:46:12,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:46:12,768 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=FINITE_AUTOMATA, 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;@7909e958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:46:12,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:46:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 2085 states, 1362 states have (on average 1.265051395007342) internal successors, (1723), 1404 states have internal predecessors, (1723), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) [2022-11-20 20:46:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 20:46:12,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:12,807 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-11-20 20:46:12,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:12,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2003880112, now seen corresponding path program 1 times [2022-11-20 20:46:12,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:12,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192824669] [2022-11-20 20:46:12,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:12,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:46:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:12,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:12,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:15,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:15,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-20 20:46:15,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:15,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:15,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192824669] [2022-11-20 20:46:15,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192824669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:15,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:15,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:46:15,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188737906] [2022-11-20 20:46:15,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:15,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:15,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:15,305 INFO L87 Difference]: Start difference. First operand has 2085 states, 1362 states have (on average 1.265051395007342) internal successors, (1723), 1404 states have internal predecessors, (1723), 619 states have call successors, (619), 104 states have call predecessors, (619), 103 states have return successors, (614), 600 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:46:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:16,387 INFO L93 Difference]: Finished difference Result 5319 states and 7827 transitions. [2022-11-20 20:46:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:16,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 128 [2022-11-20 20:46:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:16,444 INFO L225 Difference]: With dead ends: 5319 [2022-11-20 20:46:16,444 INFO L226 Difference]: Without dead ends: 3201 [2022-11-20 20:46:16,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 20:46:16,484 INFO L413 NwaCegarLoop]: 3414 mSDtfsCounter, 2621 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 5274 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:16,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 5274 Invalid, 92 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 20:46:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2022-11-20 20:46:16,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3179. [2022-11-20 20:46:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2124 states have (on average 1.2509416195856873) internal successors, (2657), 2195 states have internal predecessors, (2657), 885 states have call successors, (885), 186 states have call predecessors, (885), 169 states have return successors, (893), 835 states have call predecessors, (893), 885 states have call successors, (893) [2022-11-20 20:46:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4435 transitions. [2022-11-20 20:46:16,819 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4435 transitions. Word has length 128 [2022-11-20 20:46:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:16,820 INFO L495 AbstractCegarLoop]: Abstraction has 3179 states and 4435 transitions. [2022-11-20 20:46:16,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:46:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4435 transitions. [2022-11-20 20:46:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-20 20:46:16,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:16,836 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-11-20 20:46:16,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:17,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:17,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1867595770, now seen corresponding path program 1 times [2022-11-20 20:46:17,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:17,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192850898] [2022-11-20 20:46:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:17,057 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 20:46:17,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:17,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:17,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:19,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:19,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-20 20:46:19,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:19,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:19,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192850898] [2022-11-20 20:46:19,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192850898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:19,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:19,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:46:19,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997779821] [2022-11-20 20:46:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:19,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:19,387 INFO L87 Difference]: Start difference. First operand 3179 states and 4435 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:46:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:20,189 INFO L93 Difference]: Finished difference Result 9165 states and 13021 transitions. [2022-11-20 20:46:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 130 [2022-11-20 20:46:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:20,260 INFO L225 Difference]: With dead ends: 9165 [2022-11-20 20:46:20,261 INFO L226 Difference]: Without dead ends: 6003 [2022-11-20 20:46:20,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 20:46:20,287 INFO L413 NwaCegarLoop]: 3668 mSDtfsCounter, 2874 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:20,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 6481 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:46:20,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2022-11-20 20:46:20,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 5975. [2022-11-20 20:46:20,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5975 states, 3960 states have (on average 1.243939393939394) internal successors, (4926), 4098 states have internal predecessors, (4926), 1685 states have call successors, (1685), 363 states have call predecessors, (1685), 329 states have return successors, (1956), 1585 states have call predecessors, (1956), 1685 states have call successors, (1956) [2022-11-20 20:46:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5975 states to 5975 states and 8567 transitions. [2022-11-20 20:46:20,914 INFO L78 Accepts]: Start accepts. Automaton has 5975 states and 8567 transitions. Word has length 130 [2022-11-20 20:46:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:20,918 INFO L495 AbstractCegarLoop]: Abstraction has 5975 states and 8567 transitions. [2022-11-20 20:46:20,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:46:20,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5975 states and 8567 transitions. [2022-11-20 20:46:20,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 20:46:20,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:20,925 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-11-20 20:46:20,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:21,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:21,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:21,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1302583425, now seen corresponding path program 1 times [2022-11-20 20:46:21,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:21,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898721524] [2022-11-20 20:46:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:21,151 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 20:46:21,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:21,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:21,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:23,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1879 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:23,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-20 20:46:23,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:23,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:23,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898721524] [2022-11-20 20:46:23,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898721524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:23,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:23,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:46:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398758417] [2022-11-20 20:46:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:23,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:23,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:23,158 INFO L87 Difference]: Start difference. First operand 5975 states and 8567 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:46:24,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:24,232 INFO L93 Difference]: Finished difference Result 17580 states and 25469 transitions. [2022-11-20 20:46:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 149 [2022-11-20 20:46:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:24,378 INFO L225 Difference]: With dead ends: 17580 [2022-11-20 20:46:24,378 INFO L226 Difference]: Without dead ends: 11622 [2022-11-20 20:46:24,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 20:46:24,438 INFO L413 NwaCegarLoop]: 3672 mSDtfsCounter, 3058 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:24,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3058 Valid, 6497 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:46:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11622 states. [2022-11-20 20:46:25,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 11608. [2022-11-20 20:46:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11608 states, 7676 states have (on average 1.2420531526836893) internal successors, (9534), 7956 states have internal predecessors, (9534), 3284 states have call successors, (3284), 722 states have call predecessors, (3284), 647 states have return successors, (4077), 3069 states have call predecessors, (4077), 3284 states have call successors, (4077) [2022-11-20 20:46:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11608 states to 11608 states and 16895 transitions. [2022-11-20 20:46:25,598 INFO L78 Accepts]: Start accepts. Automaton has 11608 states and 16895 transitions. Word has length 149 [2022-11-20 20:46:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:25,601 INFO L495 AbstractCegarLoop]: Abstraction has 11608 states and 16895 transitions. [2022-11-20 20:46:25,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:46:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11608 states and 16895 transitions. [2022-11-20 20:46:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 20:46:25,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:25,610 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:46:25,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:25,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:25,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:25,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:25,831 INFO L85 PathProgramCache]: Analyzing trace with hash -65050091, now seen corresponding path program 1 times [2022-11-20 20:46:25,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:25,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868347050] [2022-11-20 20:46:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:25,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:46:25,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:25,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:25,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:27,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:27,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-20 20:46:28,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:28,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:28,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868347050] [2022-11-20 20:46:28,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868347050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:28,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:46:28,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:46:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370672488] [2022-11-20 20:46:28,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:28,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:28,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:28,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:46:28,409 INFO L87 Difference]: Start difference. First operand 11608 states and 16895 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:46:30,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:46:32,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:32,515 INFO L93 Difference]: Finished difference Result 33185 states and 48928 transitions. [2022-11-20 20:46:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:32,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 192 [2022-11-20 20:46:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:32,726 INFO L225 Difference]: With dead ends: 33185 [2022-11-20 20:46:32,727 INFO L226 Difference]: Without dead ends: 21594 [2022-11-20 20:46:32,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 20:46:32,836 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 2442 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 6325 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:32,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 6325 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 90 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 20:46:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21594 states. [2022-11-20 20:46:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21594 to 21526. [2022-11-20 20:46:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.2315222711698484) internal successors, (17612), 14805 states have internal predecessors, (17612), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:46:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30962 transitions. [2022-11-20 20:46:34,872 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30962 transitions. Word has length 192 [2022-11-20 20:46:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:34,873 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30962 transitions. [2022-11-20 20:46:34,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:46:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30962 transitions. [2022-11-20 20:46:34,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 20:46:34,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:34,881 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:46:34,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:35,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:35,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:35,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2104375381, now seen corresponding path program 1 times [2022-11-20 20:46:35,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:35,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230519183] [2022-11-20 20:46:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:35,100 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 20:46:35,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:35,101 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:35,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:37,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:46:37,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:46:37,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:38,008 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:46:38,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:38,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230519183] [2022-11-20 20:46:38,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230519183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:38,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [131936111] [2022-11-20 20:46:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:38,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:46:38,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:46:38,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:46:38,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-20 20:46:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:39,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:39,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:46:40,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:40,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [131936111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:40,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:46:40,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:46:40,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958211291] [2022-11-20 20:46:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:40,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:40,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:46:40,962 INFO L87 Difference]: Start difference. First operand 21526 states and 30962 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:46:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:43,074 INFO L93 Difference]: Finished difference Result 43035 states and 62208 transitions. [2022-11-20 20:46:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 192 [2022-11-20 20:46:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:43,277 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:46:43,277 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:46:43,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:46:43,422 INFO L413 NwaCegarLoop]: 2888 mSDtfsCounter, 2765 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:43,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2765 Valid, 2888 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:46:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:46:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:46:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.2304733934689882) internal successors, (17597), 14805 states have internal predecessors, (17597), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:46:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30947 transitions. [2022-11-20 20:46:46,134 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30947 transitions. Word has length 192 [2022-11-20 20:46:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:46,137 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30947 transitions. [2022-11-20 20:46:46,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:46:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30947 transitions. [2022-11-20 20:46:46,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 20:46:46,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:46,144 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:46:46,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:46,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:46,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:46:46,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:46,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1363260348, now seen corresponding path program 1 times [2022-11-20 20:46:46,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:46,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455146691] [2022-11-20 20:46:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:46,570 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 20:46:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:46,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:46,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:48,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:46:48,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:46:48,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:46:49,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:49,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455146691] [2022-11-20 20:46:49,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455146691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:49,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [64571180] [2022-11-20 20:46:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:49,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:46:49,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:46:49,138 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:46:49,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-20 20:46:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:50,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:46:50,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:46:52,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:46:52,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [64571180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:46:52,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:46:52,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:46:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84177799] [2022-11-20 20:46:52,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:46:52,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:46:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:46:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:46:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:46:52,174 INFO L87 Difference]: Start difference. First operand 21526 states and 30947 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:46:54,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:46:54,182 INFO L93 Difference]: Finished difference Result 43035 states and 62178 transitions. [2022-11-20 20:46:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:46:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 193 [2022-11-20 20:46:54,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:46:54,363 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:46:54,364 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:46:54,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:46:54,511 INFO L413 NwaCegarLoop]: 2887 mSDtfsCounter, 2763 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 2887 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:46:54,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 2887 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:46:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:46:56,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:46:56,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.229424515768128) internal successors, (17582), 14805 states have internal predecessors, (17582), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:46:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30932 transitions. [2022-11-20 20:46:56,760 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30932 transitions. Word has length 193 [2022-11-20 20:46:56,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:46:56,761 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30932 transitions. [2022-11-20 20:46:56,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:46:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30932 transitions. [2022-11-20 20:46:56,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 20:46:56,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:46:56,769 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:46:56,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:57,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-20 20:46:57,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:46:57,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:46:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:46:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1222480719, now seen corresponding path program 1 times [2022-11-20 20:46:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:46:57,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487282372] [2022-11-20 20:46:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:57,186 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 20:46:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:46:57,189 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:57,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:46:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:46:59,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:46:59,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:46:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:46:59,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:46:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:46:59,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:46:59,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487282372] [2022-11-20 20:46:59,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487282372] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:46:59,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [449758557] [2022-11-20 20:46:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:46:59,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:46:59,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:46:59,942 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:46:59,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-20 20:47:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:01,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:47:01,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:47:03,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:03,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [449758557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:03,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:47:03,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:47:03,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674300076] [2022-11-20 20:47:03,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:03,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:47:03,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:03,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:47:03,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:03,145 INFO L87 Difference]: Start difference. First operand 21526 states and 30932 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:05,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:05,025 INFO L93 Difference]: Finished difference Result 43035 states and 62148 transitions. [2022-11-20 20:47:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:47:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 192 [2022-11-20 20:47:05,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:05,185 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:47:05,185 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:47:05,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:05,319 INFO L413 NwaCegarLoop]: 2886 mSDtfsCounter, 2763 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:05,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 2886 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:47:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:47:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.2283756380672681) internal successors, (17567), 14805 states have internal predecessors, (17567), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:47:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30917 transitions. [2022-11-20 20:47:07,628 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30917 transitions. Word has length 192 [2022-11-20 20:47:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:07,629 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30917 transitions. [2022-11-20 20:47:07,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30917 transitions. [2022-11-20 20:47:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 20:47:07,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:07,636 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:47:07,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:07,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:08,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:08,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:47:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:08,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1591809410, now seen corresponding path program 1 times [2022-11-20 20:47:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:08,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844575775] [2022-11-20 20:47:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:08,054 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 20:47:08,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:08,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:08,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 20:47:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:09,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:47:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:47:10,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:47:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:47:10,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844575775] [2022-11-20 20:47:10,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844575775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:47:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1019432326] [2022-11-20 20:47:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:10,595 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:10,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:47:10,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:47:10,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-20 20:47:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:12,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:47:12,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:47:13,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:13,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1019432326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:13,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:47:13,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:47:13,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658360452] [2022-11-20 20:47:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:13,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:47:13,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:47:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:13,666 INFO L87 Difference]: Start difference. First operand 21526 states and 30917 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:15,343 INFO L93 Difference]: Finished difference Result 43035 states and 62118 transitions. [2022-11-20 20:47:15,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:47:15,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 193 [2022-11-20 20:47:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:15,503 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:47:15,503 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:47:15,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:15,629 INFO L413 NwaCegarLoop]: 2885 mSDtfsCounter, 2761 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2761 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:15,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2761 Valid, 2885 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:15,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:47:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:47:17,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.227326760366408) internal successors, (17552), 14805 states have internal predecessors, (17552), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:47:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30902 transitions. [2022-11-20 20:47:17,859 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30902 transitions. Word has length 193 [2022-11-20 20:47:17,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:17,859 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30902 transitions. [2022-11-20 20:47:17,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30902 transitions. [2022-11-20 20:47:17,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-20 20:47:17,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:17,867 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:47:17,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:18,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:18,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:18,283 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:47:18,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash 270613547, now seen corresponding path program 1 times [2022-11-20 20:47:18,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:18,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112295207] [2022-11-20 20:47:18,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:18,286 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 20:47:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:18,287 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:18,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 20:47:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:20,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:47:20,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:47:20,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:47:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:47:20,790 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112295207] [2022-11-20 20:47:20,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112295207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:47:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [831939519] [2022-11-20 20:47:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:20,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:20,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:47:20,795 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:47:20,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-20 20:47:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:22,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:47:22,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:47:23,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:23,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [831939519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:23,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:47:23,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:47:23,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041177452] [2022-11-20 20:47:23,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:23,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:47:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:23,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:47:23,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:23,972 INFO L87 Difference]: Start difference. First operand 21526 states and 30902 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:26,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:26,313 INFO L93 Difference]: Finished difference Result 43035 states and 62088 transitions. [2022-11-20 20:47:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:47:26,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 194 [2022-11-20 20:47:26,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:26,442 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:47:26,442 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:47:26,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:26,605 INFO L413 NwaCegarLoop]: 2884 mSDtfsCounter, 2759 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2759 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:26,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2759 Valid, 2884 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:47:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:47:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.2262778826655478) internal successors, (17537), 14805 states have internal predecessors, (17537), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:47:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30887 transitions. [2022-11-20 20:47:28,958 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30887 transitions. Word has length 194 [2022-11-20 20:47:28,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:28,959 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30887 transitions. [2022-11-20 20:47:28,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:28,960 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30887 transitions. [2022-11-20 20:47:28,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 20:47:28,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:28,966 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:47:29,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-20 20:47:29,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:29,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:29,368 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:47:29,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:29,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1917235938, now seen corresponding path program 1 times [2022-11-20 20:47:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:29,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812719988] [2022-11-20 20:47:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:29,370 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 20:47:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:29,371 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:29,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 20:47:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:31,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:47:31,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:47:31,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:47:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:47:31,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:31,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812719988] [2022-11-20 20:47:31,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812719988] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:47:31,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1888943950] [2022-11-20 20:47:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:31,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:47:31,977 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:47:31,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-20 20:47:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:33,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:47:33,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 20:47:34,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:34,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1888943950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:34,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:47:34,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8] total 10 [2022-11-20 20:47:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401985861] [2022-11-20 20:47:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:34,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:47:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:47:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:34,968 INFO L87 Difference]: Start difference. First operand 21526 states and 30887 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:37,322 INFO L93 Difference]: Finished difference Result 43035 states and 62058 transitions. [2022-11-20 20:47:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:47:37,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 195 [2022-11-20 20:47:37,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:37,467 INFO L225 Difference]: With dead ends: 43035 [2022-11-20 20:47:37,467 INFO L226 Difference]: Without dead ends: 21526 [2022-11-20 20:47:37,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:37,602 INFO L413 NwaCegarLoop]: 2883 mSDtfsCounter, 2757 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:37,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2757 Valid, 2883 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:47:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-11-20 20:47:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 21526. [2022-11-20 20:47:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21526 states, 14301 states have (on average 1.2252290049646877) internal successors, (17522), 14805 states have internal predecessors, (17522), 5985 states have call successors, (5985), 1384 states have call predecessors, (5985), 1239 states have return successors, (7365), 5587 states have call predecessors, (7365), 5985 states have call successors, (7365) [2022-11-20 20:47:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21526 states to 21526 states and 30872 transitions. [2022-11-20 20:47:39,939 INFO L78 Accepts]: Start accepts. Automaton has 21526 states and 30872 transitions. Word has length 195 [2022-11-20 20:47:39,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:47:39,940 INFO L495 AbstractCegarLoop]: Abstraction has 21526 states and 30872 transitions. [2022-11-20 20:47:39,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:47:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 21526 states and 30872 transitions. [2022-11-20 20:47:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-20 20:47:39,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:47:39,947 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-11-20 20:47:39,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:40,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-20 20:47:40,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:40,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:47:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:47:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash -906576633, now seen corresponding path program 1 times [2022-11-20 20:47:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:47:40,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956145198] [2022-11-20 20:47:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:40,373 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 20:47:40,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:47:40,374 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -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 20:47:40,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 20:47:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:42,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:47:42,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-20 20:47:42,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:47:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 20:47:42,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:47:42,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956145198] [2022-11-20 20:47:42,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956145198] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:47:42,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [482039309] [2022-11-20 20:47:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:47:42,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:47:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:47:42,775 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:47:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53794172-3847-47a3-b4ed-6b8908422173/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-20 20:47:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:47:44,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:47:44,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:47:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 20:47:44,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:47:44,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [482039309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:47:44,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:47:44,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8] total 10 [2022-11-20 20:47:44,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401838138] [2022-11-20 20:47:44,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:47:44,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:47:44,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:47:44,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:47:44,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:44,813 INFO L87 Difference]: Start difference. First operand 21526 states and 30872 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 20:47:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:47:47,990 INFO L93 Difference]: Finished difference Result 48621 states and 69420 transitions. [2022-11-20 20:47:47,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:47:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 196 [2022-11-20 20:47:47,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:47:48,122 INFO L225 Difference]: With dead ends: 48621 [2022-11-20 20:47:48,122 INFO L226 Difference]: Without dead ends: 27112 [2022-11-20 20:47:48,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:47:48,206 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 1265 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 7019 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:47:48,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 7019 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:47:48,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27112 states.