./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- 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 10:50:49,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:49,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:49,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:49,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:49,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:49,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:49,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:49,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:49,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:49,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:49,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:49,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:49,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:49,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:49,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:49,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:49,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:49,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:49,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:49,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:49,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:49,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:49,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:49,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:49,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:49,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:49,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:49,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:49,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:49,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:49,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:49,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:49,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:49,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:49,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:49,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:49,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:49,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:49,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:49,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:49,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:50:49,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:49,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:49,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:49,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:49,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:49,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:49,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:49,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:49,282 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:49,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:49,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:50:49,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:49,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:49,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:49,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:49,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:49,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:49,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:49,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:49,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:49,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:49,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:49,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:49,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:49,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:49,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:50:49,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:50:49,286 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:49,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:49,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:49,287 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_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-11-20 10:50:49,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:49,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:49,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:49,555 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:49,556 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:49,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-11-20 10:50:52,602 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:50:53,281 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:50:53,282 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-11-20 10:50:53,334 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/a3b0ae91e/de3cedcb017742678310cb0432d1e787/FLAGcfb8d8452 [2022-11-20 10:50:53,356 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/a3b0ae91e/de3cedcb017742678310cb0432d1e787 [2022-11-20 10:50:53,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:50:53,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:50:53,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:53,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:50:53,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:50:53,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:53" (1/1) ... [2022-11-20 10:50:53,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f5335e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:53, skipping insertion in model container [2022-11-20 10:50:53,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:53" (1/1) ... [2022-11-20 10:50:53,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:50:53,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:50:54,257 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_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-11-20 10:50:55,859 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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 10:50:55,872 INFO L158 Benchmark]: Toolchain (without parser) took 2507.22ms. Allocated memory is still 165.7MB. Free memory was 109.2MB in the beginning and 105.4MB in the end (delta: 3.8MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2022-11-20 10:50:55,873 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:50:55,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2503.58ms. Allocated memory is still 165.7MB. Free memory was 109.2MB in the beginning and 105.4MB in the end (delta: 3.8MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2022-11-20 10:50:55,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2503.58ms. Allocated memory is still 165.7MB. Free memory was 109.2MB in the beginning and 105.4MB in the end (delta: 3.8MB). Peak memory consumption was 51.1MB. 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_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 --- 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 10:50:58,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:58,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:58,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:58,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:58,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:58,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:58,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:58,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:58,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:58,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:58,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:58,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:58,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:58,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:58,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:58,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:58,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:58,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:58,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:58,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:58,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:58,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:58,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:58,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:58,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:58,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:58,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:58,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:58,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:58,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:58,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:58,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:58,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:58,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:58,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:58,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:58,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:58,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:58,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:58,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:58,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:50:58,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:58,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:58,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:58,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:58,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:58,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:58,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:58,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:58,312 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:58,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:58,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:58,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:58,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:58,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:58,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:50:58,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:50:58,314 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:50:58,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:58,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:58,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:58,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:58,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:58,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:58,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:58,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:58,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:58,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:58,316 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:50:58,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:50:58,317 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:58,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:58,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:58,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:50:58,318 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_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2b7015249343fdf8056852ea29542152fe4e2fe5328579e80867d2e6b2b327 [2022-11-20 10:50:58,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:58,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:58,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:58,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:58,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:58,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-11-20 10:51:01,794 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:51:02,537 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:51:02,537 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-11-20 10:51:02,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/714001bd4/c8162f36627c49e683a399a5229ace79/FLAG12732a6d9 [2022-11-20 10:51:02,615 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/data/714001bd4/c8162f36627c49e683a399a5229ace79 [2022-11-20 10:51:02,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:51:02,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:51:02,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:02,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:51:02,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:51:02,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:02" (1/1) ... [2022-11-20 10:51:02,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a04c60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:02, skipping insertion in model container [2022-11-20 10:51:02,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:02" (1/1) ... [2022-11-20 10:51:02,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:51:02,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:03,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-11-20 10:51:06,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:06,206 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:51:06,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:06,438 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-11-20 10:51:06,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:07,010 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:51:07,129 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_02128b43-b6c0-408e-a123-cf3417195861/sv-benchmarks/c/ldv-validator-v0.6/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i[81795,81808] [2022-11-20 10:51:07,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:07,904 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:51:07,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07 WrapperNode [2022-11-20 10:51:07,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:07,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:07,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:51:07,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:51:07,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,389 INFO L138 Inliner]: procedures = 434, calls = 5174, calls flagged for inlining = 152, calls inlined = 136, statements flattened = 9815 [2022-11-20 10:51:08,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:08,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:51:08,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:51:08,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:51:08,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,949 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:08,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:09,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:51:09,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:51:09,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:51:09,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:51:09,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (1/1) ... [2022-11-20 10:51:09,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:51:09,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:51:09,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:51:09,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:51:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-11-20 10:51:09,115 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-11-20 10:51:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-11-20 10:51:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-11-20 10:51:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 10:51:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 10:51:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:51:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:51:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-11-20 10:51:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-11-20 10:51:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-11-20 10:51:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-11-20 10:51:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-11-20 10:51:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-11-20 10:51:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-11-20 10:51:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-11-20 10:51:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-20 10:51:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-11-20 10:51:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-11-20 10:51:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:51:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:51:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-11-20 10:51:09,119 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-11-20 10:51:09,119 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-11-20 10:51:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-11-20 10:51:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:51:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:51:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-11-20 10:51:09,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-11-20 10:51:09,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:51:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:51:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:51:09,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:51:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:51:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:51:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:51:09,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:51:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-11-20 10:51:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-11-20 10:51:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:51:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-11-20 10:51:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-11-20 10:51:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-11-20 10:51:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-11-20 10:51:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-11-20 10:51:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-11-20 10:51:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-11-20 10:51:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-11-20 10:51:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-11-20 10:51:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-11-20 10:51:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:51:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:51:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:51:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:51:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 10:51:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 10:51:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-11-20 10:51:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-11-20 10:51:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-11-20 10:51:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-11-20 10:51:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-11-20 10:51:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-11-20 10:51:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-11-20 10:51:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-11-20 10:51:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:51:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:51:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-20 10:51:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-20 10:51:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:51:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:51:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-11-20 10:51:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-11-20 10:51:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-11-20 10:51:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-11-20 10:51:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-11-20 10:51:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-11-20 10:51:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-11-20 10:51:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-11-20 10:51:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-11-20 10:51:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-11-20 10:51:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-11-20 10:51:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-11-20 10:51:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-20 10:51:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 10:51:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 10:51:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 10:51:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 10:51:09,129 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-11-20 10:51:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-11-20 10:51:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-11-20 10:51:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-11-20 10:51:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-11-20 10:51:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-11-20 10:51:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-20 10:51:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-20 10:51:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-11-20 10:51:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-11-20 10:51:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:51:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-11-20 10:51:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-11-20 10:51:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-11-20 10:51:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-11-20 10:51:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:51:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:51:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:51:09,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:51:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:51:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-11-20 10:51:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-11-20 10:51:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:51:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-11-20 10:51:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-11-20 10:51:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-11-20 10:51:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-11-20 10:51:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-11-20 10:51:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-11-20 10:51:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-20 10:51:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-20 10:51:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-11-20 10:51:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-11-20 10:51:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-20 10:51:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-20 10:51:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-11-20 10:51:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-11-20 10:51:09,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-11-20 10:51:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-11-20 10:51:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-11-20 10:51:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-11-20 10:51:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-11-20 10:51:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-11-20 10:51:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-11-20 10:51:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-11-20 10:51:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-11-20 10:51:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-11-20 10:51:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 10:51:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 10:51:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:51:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:51:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:51:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:51:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:51:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-11-20 10:51:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-11-20 10:51:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-11-20 10:51:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-11-20 10:51:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:51:09,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 10:51:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:51:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:51:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:51:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 10:51:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 10:51:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:51:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-11-20 10:51:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-11-20 10:51:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-11-20 10:51:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-11-20 10:51:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-11-20 10:51:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-11-20 10:51:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:51:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:51:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-11-20 10:51:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-11-20 10:51:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:51:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:51:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-11-20 10:51:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-11-20 10:51:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-11-20 10:51:09,142 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-11-20 10:51:09,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:51:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:51:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:51:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:51:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 10:51:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 10:51:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 10:51:09,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 10:51:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-11-20 10:51:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-11-20 10:51:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-20 10:51:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-20 10:51:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-20 10:51:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-20 10:51:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:51:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-11-20 10:51:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-11-20 10:51:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-20 10:51:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-20 10:51:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:51:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 10:51:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 10:51:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-11-20 10:51:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-11-20 10:51:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-11-20 10:51:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-11-20 10:51:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-20 10:51:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-20 10:51:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:51:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:51:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:51:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:51:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:51:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-11-20 10:51:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-11-20 10:51:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-11-20 10:51:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-11-20 10:51:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:51:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-11-20 10:51:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-11-20 10:51:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 10:51:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 10:51:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-11-20 10:51:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-11-20 10:51:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-11-20 10:51:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-11-20 10:51:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 10:51:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 10:51:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 10:51:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 10:51:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-11-20 10:51:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-11-20 10:51:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-11-20 10:51:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-11-20 10:51:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-11-20 10:51:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-11-20 10:51:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-11-20 10:51:09,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:51:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:51:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-11-20 10:51:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-11-20 10:51:09,152 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-11-20 10:51:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-11-20 10:51:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-11-20 10:51:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-11-20 10:51:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-11-20 10:51:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-11-20 10:51:09,153 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-11-20 10:51:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-11-20 10:51:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-11-20 10:51:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-11-20 10:51:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-11-20 10:51:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-11-20 10:51:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:51:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:51:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:51:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:51:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:51:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:51:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-20 10:51:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-20 10:51:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-11-20 10:51:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-11-20 10:51:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-11-20 10:51:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-11-20 10:51:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-20 10:51:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-20 10:51:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-11-20 10:51:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-11-20 10:51:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 10:51:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 10:51:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-11-20 10:51:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-11-20 10:51:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-11-20 10:51:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-11-20 10:51:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 10:51:09,157 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 10:51:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 10:51:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 10:51:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-11-20 10:51:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-11-20 10:51:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-11-20 10:51:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-11-20 10:51:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-11-20 10:51:09,158 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-11-20 10:51:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-11-20 10:51:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-11-20 10:51:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-11-20 10:51:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-11-20 10:51:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:51:09,159 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:51:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 10:51:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 10:51:09,160 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-11-20 10:51:09,160 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-11-20 10:51:10,430 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:51:10,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:51:11,679 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:51:12,134 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume 0bv64 != ~tmp___1~3;#res := ~ret~3; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3836: assume !(0bv64 != ~tmp___1~3);#res := ~ret~3; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc #t~switch115; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume #t~switch115; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3832: assume !#t~switch115;#t~switch115 := true; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3824: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume #t~switch115; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3820: assume !#t~switch115;#t~switch115 := #t~switch115 || 16bv32 == ~size; [2022-11-20 10:51:12,135 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume #t~switch115;#res := ~ret~3; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3816: assume !#t~switch115;#t~switch115 := #t~switch115 || 10bv32 == ~size; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch115;#res := ~ret~3; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume #t~switch115;#res := ~ret~3; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: assume !#t~switch115;#t~switch115 := #t~switch115 || 8bv32 == ~size; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845-1: ~tmp___2~2 := #t~ret118;havoc #t~ret118;#res := ~tmp___2~2[32:0]; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3845: SUMMARY for call #t~ret118 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch115;#t~switch115 := #t~switch115 || 2bv32 == ~size; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume #t~switch115;#res := ~ret~3; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3808: assume !#t~switch115;#t~switch115 := #t~switch115 || 4bv32 == ~size; [2022-11-20 10:51:12,136 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835-1: ~tmp___1~3 := #t~ret117;havoc #t~ret117; [2022-11-20 10:51:12,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3835: SUMMARY for call #t~ret117 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:51:12,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823-1: ~tmp___0~8 := #t~ret116;havoc #t~ret116; [2022-11-20 10:51:12,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: SUMMARY for call #t~ret116 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:51:12,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume #t~switch115; [2022-11-20 10:51:12,137 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3844: assume !#t~switch115; [2022-11-20 10:52:38,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3738: havoc __copy_from_user_#t~switch110#1; [2022-11-20 10:52:38,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3744: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 4bv32 == __copy_from_user_~size#1; [2022-11-20 10:52:38,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3749: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 8bv32 == __copy_from_user_~size#1; [2022-11-20 10:52:38,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 10bv32 == __copy_from_user_~size#1; [2022-11-20 10:52:38,668 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume __copy_from_user_#t~switch110#1; [2022-11-20 10:52:38,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3759: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 16bv32 == __copy_from_user_~size#1; [2022-11-20 10:52:38,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret111#1;havoc __copy_from_user_#t~ret111#1; [2022-11-20 10:52:38,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3763: SUMMARY for call __copy_from_user_#t~ret111#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:52:38,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume __copy_from_user_#t~switch110#1; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3772: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := true; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776: SUMMARY for call __copy_from_user_#t~ret112#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3776-1: __copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret112#1;havoc __copy_from_user_#t~ret112#1; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume 0bv64 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3777: assume !(0bv64 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume __copy_from_user_#t~switch110#1; [2022-11-20 10:52:38,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3785: assume !__copy_from_user_#t~switch110#1; [2022-11-20 10:52:38,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786: SUMMARY for call __copy_from_user_#t~ret113#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-11-20 10:52:38,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3786-1: __copy_from_user_~tmp___2~1#1 := __copy_from_user_#t~ret113#1;havoc __copy_from_user_#t~ret113#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~1#1[32:0]; [2022-11-20 10:52:38,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##694: assume __copy_from_user_#t~switch110#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 10:52:38,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##695: assume !__copy_from_user_#t~switch110#1;__copy_from_user_#t~switch110#1 := __copy_from_user_#t~switch110#1 || 2bv32 == __copy_from_user_~size#1; [2022-11-20 10:52:38,878 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:52:38,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:52:38,903 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:52:38,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:38 BoogieIcfgContainer [2022-11-20 10:52:38,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:52:38,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:52:38,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:52:38,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:52:38,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:51:02" (1/3) ... [2022-11-20 10:52:38,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e397ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:38, skipping insertion in model container [2022-11-20 10:52:38,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:07" (2/3) ... [2022-11-20 10:52:38,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e397ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:38, skipping insertion in model container [2022-11-20 10:52:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:38" (3/3) ... [2022-11-20 10:52:38,918 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point.cil.out.i [2022-11-20 10:52:38,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:52:38,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:52:39,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:52:39,053 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a78dbe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:52:39,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:52:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 3656 states, 2796 states have (on average 1.5046494992846924) internal successors, (4207), 2886 states have internal predecessors, (4207), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) [2022-11-20 10:52:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 10:52:39,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:39,084 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:39,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:39,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1622436135, now seen corresponding path program 1 times [2022-11-20 10:52:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:39,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739459565] [2022-11-20 10:52:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:39,108 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 10:52:39,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:39,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:39,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:52:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:44,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:44,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 10:52:44,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:44,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:44,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739459565] [2022-11-20 10:52:44,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739459565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:44,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:44,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:44,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943774020] [2022-11-20 10:52:44,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:44,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:45,008 INFO L87 Difference]: Start difference. First operand has 3656 states, 2796 states have (on average 1.5046494992846924) internal successors, (4207), 2886 states have internal predecessors, (4207), 726 states have call successors, (726), 133 states have call predecessors, (726), 132 states have return successors, (718), 700 states have call predecessors, (718), 718 states have call successors, (718) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:52:46,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:46,089 INFO L93 Difference]: Finished difference Result 8250 states and 12757 transitions. [2022-11-20 10:52:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:46,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2022-11-20 10:52:46,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:46,146 INFO L225 Difference]: With dead ends: 8250 [2022-11-20 10:52:46,146 INFO L226 Difference]: Without dead ends: 4572 [2022-11-20 10:52:46,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 10:52:46,180 INFO L413 NwaCegarLoop]: 5812 mSDtfsCounter, 1423 mSDsluCounter, 5586 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 11398 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:46,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 11398 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:52:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-11-20 10:52:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4564. [2022-11-20 10:52:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 3518 states have (on average 1.5008527572484367) internal successors, (5280), 3621 states have internal predecessors, (5280), 863 states have call successors, (863), 183 states have call predecessors, (863), 182 states have return successors, (859), 835 states have call predecessors, (859), 859 states have call successors, (859) [2022-11-20 10:52:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7002 transitions. [2022-11-20 10:52:46,517 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7002 transitions. Word has length 57 [2022-11-20 10:52:46,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:46,518 INFO L495 AbstractCegarLoop]: Abstraction has 4564 states and 7002 transitions. [2022-11-20 10:52:46,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:52:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7002 transitions. [2022-11-20 10:52:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 10:52:46,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:46,531 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:46,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:46,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:46,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:46,733 INFO L85 PathProgramCache]: Analyzing trace with hash -957770457, now seen corresponding path program 1 times [2022-11-20 10:52:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:46,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385464914] [2022-11-20 10:52:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:46,737 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 10:52:46,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:46,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:46,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:52:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:52,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 2612 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:52,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:52,835 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 10:52:52,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:52,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:52,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385464914] [2022-11-20 10:52:52,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385464914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:52,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:52,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:52:52,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927828525] [2022-11-20 10:52:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:52,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:52,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:52,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:52,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:52,839 INFO L87 Difference]: Start difference. First operand 4564 states and 7002 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:52:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:53,123 INFO L93 Difference]: Finished difference Result 9113 states and 13983 transitions. [2022-11-20 10:52:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-11-20 10:52:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:53,158 INFO L225 Difference]: With dead ends: 9113 [2022-11-20 10:52:53,158 INFO L226 Difference]: Without dead ends: 4564 [2022-11-20 10:52:53,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 10:52:53,180 INFO L413 NwaCegarLoop]: 5620 mSDtfsCounter, 5588 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 5620 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 10:52:53,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5588 Valid, 5620 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:52:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2022-11-20 10:52:53,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4564. [2022-11-20 10:52:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 3518 states have (on average 1.5002842524161455) internal successors, (5278), 3621 states have internal predecessors, (5278), 863 states have call successors, (863), 183 states have call predecessors, (863), 182 states have return successors, (859), 835 states have call predecessors, (859), 859 states have call successors, (859) [2022-11-20 10:52:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7000 transitions. [2022-11-20 10:52:53,429 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7000 transitions. Word has length 65 [2022-11-20 10:52:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:53,430 INFO L495 AbstractCegarLoop]: Abstraction has 4564 states and 7000 transitions. [2022-11-20 10:52:53,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:52:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7000 transitions. [2022-11-20 10:52:53,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 10:52:53,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:53,433 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:53,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 10:52:53,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:53,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:53,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1748848937, now seen corresponding path program 1 times [2022-11-20 10:52:53,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:53,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69070946] [2022-11-20 10:52:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:53,661 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 10:52:53,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:53,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:53,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:52:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:59,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2611 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:59,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 10:52:59,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:59,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:59,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69070946] [2022-11-20 10:52:59,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69070946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:59,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:59,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:59,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708025554] [2022-11-20 10:52:59,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:59,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:59,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:59,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:59,472 INFO L87 Difference]: Start difference. First operand 4564 states and 7000 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:53:00,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:00,889 INFO L93 Difference]: Finished difference Result 4577 states and 7012 transitions. [2022-11-20 10:53:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:00,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-11-20 10:53:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:00,918 INFO L225 Difference]: With dead ends: 4577 [2022-11-20 10:53:00,919 INFO L226 Difference]: Without dead ends: 4574 [2022-11-20 10:53:00,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 10:53:00,926 INFO L413 NwaCegarLoop]: 5629 mSDtfsCounter, 5575 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5575 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:00,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5575 Valid, 5658 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:53:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2022-11-20 10:53:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4574. [2022-11-20 10:53:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 3526 states have (on average 1.499149177538287) internal successors, (5286), 3628 states have internal predecessors, (5286), 863 states have call successors, (863), 185 states have call predecessors, (863), 184 states have return successors, (860), 836 states have call predecessors, (860), 860 states have call successors, (860) [2022-11-20 10:53:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7009 transitions. [2022-11-20 10:53:01,209 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7009 transitions. Word has length 65 [2022-11-20 10:53:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:01,210 INFO L495 AbstractCegarLoop]: Abstraction has 4574 states and 7009 transitions. [2022-11-20 10:53:01,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:53:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7009 transitions. [2022-11-20 10:53:01,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 10:53:01,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:01,213 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:53:01,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-20 10:53:01,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:01,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:01,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:01,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1621423704, now seen corresponding path program 1 times [2022-11-20 10:53:01,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:01,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13903753] [2022-11-20 10:53:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:01,438 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 10:53:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:01,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:01,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:53:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:07,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2612 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 10:53:07,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:07,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:07,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13903753] [2022-11-20 10:53:07,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13903753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:07,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:07,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163016202] [2022-11-20 10:53:07,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:07,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:07,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:07,505 INFO L87 Difference]: Start difference. First operand 4574 states and 7009 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:53:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:08,774 INFO L93 Difference]: Finished difference Result 6999 states and 10621 transitions. [2022-11-20 10:53:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:08,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-11-20 10:53:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:08,817 INFO L225 Difference]: With dead ends: 6999 [2022-11-20 10:53:08,818 INFO L226 Difference]: Without dead ends: 6911 [2022-11-20 10:53:08,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 10:53:08,825 INFO L413 NwaCegarLoop]: 6384 mSDtfsCounter, 2260 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 11937 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:08,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 11937 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:53:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-11-20 10:53:09,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 6911. [2022-11-20 10:53:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6911 states, 5321 states have (on average 1.4933283217440332) internal successors, (7946), 5495 states have internal predecessors, (7946), 1279 states have call successors, (1279), 313 states have call predecessors, (1279), 310 states have return successors, (1278), 1220 states have call predecessors, (1278), 1276 states have call successors, (1278) [2022-11-20 10:53:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6911 states to 6911 states and 10503 transitions. [2022-11-20 10:53:09,232 INFO L78 Accepts]: Start accepts. Automaton has 6911 states and 10503 transitions. Word has length 66 [2022-11-20 10:53:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 6911 states and 10503 transitions. [2022-11-20 10:53:09,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:53:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6911 states and 10503 transitions. [2022-11-20 10:53:09,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 10:53:09,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:09,244 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-20 10:53:09,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:09,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:09,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:09,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash 353370162, now seen corresponding path program 1 times [2022-11-20 10:53:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:09,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573145083] [2022-11-20 10:53:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:09,470 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 10:53:09,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:09,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:09,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:53:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:15,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:53:15,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 10:53:15,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:15,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:15,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573145083] [2022-11-20 10:53:15,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573145083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:15,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:15,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:53:15,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611017491] [2022-11-20 10:53:15,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:15,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:53:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:53:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:53:15,546 INFO L87 Difference]: Start difference. First operand 6911 states and 10503 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:53:16,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:17,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:17,547 INFO L93 Difference]: Finished difference Result 13818 states and 21001 transitions. [2022-11-20 10:53:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:53:17,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2022-11-20 10:53:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:17,613 INFO L225 Difference]: With dead ends: 13818 [2022-11-20 10:53:17,614 INFO L226 Difference]: Without dead ends: 6915 [2022-11-20 10:53:17,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:53:17,644 INFO L413 NwaCegarLoop]: 5616 mSDtfsCounter, 23 mSDsluCounter, 22458 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28074 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:17,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28074 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 10:53:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6915 states. [2022-11-20 10:53:18,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6915 to 6904. [2022-11-20 10:53:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5318 states have (on average 1.4928544565626176) internal successors, (7939), 5490 states have internal predecessors, (7939), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-11-20 10:53:18,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 10492 transitions. [2022-11-20 10:53:18,168 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 10492 transitions. Word has length 110 [2022-11-20 10:53:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:18,168 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 10492 transitions. [2022-11-20 10:53:18,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 10:53:18,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 10492 transitions. [2022-11-20 10:53:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-20 10:53:18,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:18,181 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-20 10:53:18,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:18,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:18,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 885555850, now seen corresponding path program 1 times [2022-11-20 10:53:18,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:18,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366659529] [2022-11-20 10:53:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:18,403 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 10:53:18,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:18,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:18,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:53:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:24,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 2765 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:53:24,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 10:53:24,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:24,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:24,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366659529] [2022-11-20 10:53:24,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366659529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:24,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:24,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:53:24,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858593925] [2022-11-20 10:53:24,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:24,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:53:24,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:53:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:53:24,427 INFO L87 Difference]: Start difference. First operand 6904 states and 10492 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:26,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:26,405 INFO L93 Difference]: Finished difference Result 13960 states and 21237 transitions. [2022-11-20 10:53:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:53:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-11-20 10:53:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:26,451 INFO L225 Difference]: With dead ends: 13960 [2022-11-20 10:53:26,451 INFO L226 Difference]: Without dead ends: 7082 [2022-11-20 10:53:26,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:53:26,640 INFO L413 NwaCegarLoop]: 5902 mSDtfsCounter, 3403 mSDsluCounter, 7839 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3403 SdHoareTripleChecker+Valid, 13741 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:26,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3403 Valid, 13741 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:53:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7082 states. [2022-11-20 10:53:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7082 to 6904. [2022-11-20 10:53:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5318 states have (on average 1.4921022940955246) internal successors, (7935), 5490 states have internal predecessors, (7935), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-11-20 10:53:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 10488 transitions. [2022-11-20 10:53:27,059 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 10488 transitions. Word has length 115 [2022-11-20 10:53:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:27,060 INFO L495 AbstractCegarLoop]: Abstraction has 6904 states and 10488 transitions. [2022-11-20 10:53:27,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 10488 transitions. [2022-11-20 10:53:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 10:53:27,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:27,067 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-20 10:53:27,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:27,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:27,267 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:27,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1602260644, now seen corresponding path program 1 times [2022-11-20 10:53:27,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:27,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904384778] [2022-11-20 10:53:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:27,271 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 10:53:27,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:27,273 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:27,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:53:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:32,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 2769 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:32,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 10:53:33,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:33,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:33,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904384778] [2022-11-20 10:53:33,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904384778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:33,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:33,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:33,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294115766] [2022-11-20 10:53:33,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:33,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:33,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:33,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:33,004 INFO L87 Difference]: Start difference. First operand 6904 states and 10488 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:33,514 INFO L93 Difference]: Finished difference Result 13810 states and 20984 transitions. [2022-11-20 10:53:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2022-11-20 10:53:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:33,551 INFO L225 Difference]: With dead ends: 13810 [2022-11-20 10:53:33,552 INFO L226 Difference]: Without dead ends: 6932 [2022-11-20 10:53:33,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 10:53:33,579 INFO L413 NwaCegarLoop]: 5615 mSDtfsCounter, 8 mSDsluCounter, 5612 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11227 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:33,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11227 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:53:33,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2022-11-20 10:53:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6908. [2022-11-20 10:53:33,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6908 states, 5322 states have (on average 1.4917324314167606) internal successors, (7939), 5494 states have internal predecessors, (7939), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-11-20 10:53:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 10492 transitions. [2022-11-20 10:53:33,996 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 10492 transitions. Word has length 118 [2022-11-20 10:53:33,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:33,998 INFO L495 AbstractCegarLoop]: Abstraction has 6908 states and 10492 transitions. [2022-11-20 10:53:33,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 10492 transitions. [2022-11-20 10:53:34,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 10:53:34,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:34,005 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-20 10:53:34,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:34,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:34,218 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:34,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1269147403, now seen corresponding path program 1 times [2022-11-20 10:53:34,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:34,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094542557] [2022-11-20 10:53:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:34,222 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 10:53:34,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:34,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:34,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:53:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:40,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2774 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:53:40,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 10:53:40,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-20 10:53:40,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:40,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094542557] [2022-11-20 10:53:40,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094542557] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:40,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:53:40,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 10:53:40,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797979562] [2022-11-20 10:53:40,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:40,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:53:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:40,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:53:40,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:53:40,384 INFO L87 Difference]: Start difference. First operand 6908 states and 10492 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:53:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:41,135 INFO L93 Difference]: Finished difference Result 13842 states and 21024 transitions. [2022-11-20 10:53:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:53:41,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2022-11-20 10:53:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:41,173 INFO L225 Difference]: With dead ends: 13842 [2022-11-20 10:53:41,173 INFO L226 Difference]: Without dead ends: 6960 [2022-11-20 10:53:41,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:53:41,197 INFO L413 NwaCegarLoop]: 5620 mSDtfsCounter, 23 mSDsluCounter, 22443 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28063 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:41,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28063 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:53:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-11-20 10:53:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6936. [2022-11-20 10:53:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6936 states, 5350 states have (on average 1.4906542056074767) internal successors, (7975), 5522 states have internal predecessors, (7975), 1277 states have call successors, (1277), 311 states have call predecessors, (1277), 308 states have return successors, (1276), 1217 states have call predecessors, (1276), 1274 states have call successors, (1276) [2022-11-20 10:53:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6936 states to 6936 states and 10528 transitions. [2022-11-20 10:53:41,618 INFO L78 Accepts]: Start accepts. Automaton has 6936 states and 10528 transitions. Word has length 122 [2022-11-20 10:53:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:41,619 INFO L495 AbstractCegarLoop]: Abstraction has 6936 states and 10528 transitions. [2022-11-20 10:53:41,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:53:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 6936 states and 10528 transitions. [2022-11-20 10:53:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 10:53:41,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:41,626 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:41,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:41,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash 181783566, now seen corresponding path program 2 times [2022-11-20 10:53:41,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:41,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774617907] [2022-11-20 10:53:41,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:53:41,855 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 10:53:41,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:41,856 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:41,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:53:47,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:53:47,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:47,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:53:47,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-20 10:53:47,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:47,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:47,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774617907] [2022-11-20 10:53:47,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774617907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:47,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:47,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:47,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363581539] [2022-11-20 10:53:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:47,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:47,850 INFO L87 Difference]: Start difference. First operand 6936 states and 10528 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:48,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:53:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:49,334 INFO L93 Difference]: Finished difference Result 13845 states and 21023 transitions. [2022-11-20 10:53:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-11-20 10:53:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:49,373 INFO L225 Difference]: With dead ends: 13845 [2022-11-20 10:53:49,373 INFO L226 Difference]: Without dead ends: 6935 [2022-11-20 10:53:49,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 10:53:49,399 INFO L413 NwaCegarLoop]: 7311 mSDtfsCounter, 5520 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5520 SdHoareTripleChecker+Valid, 9543 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:49,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5520 Valid, 9543 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:53:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-11-20 10:53:49,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-11-20 10:53:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5350 states have (on average 1.4902803738317758) internal successors, (7973), 5521 states have internal predecessors, (7973), 1276 states have call successors, (1276), 311 states have call predecessors, (1276), 308 states have return successors, (1266), 1217 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-11-20 10:53:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10515 transitions. [2022-11-20 10:53:49,929 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10515 transitions. Word has length 126 [2022-11-20 10:53:49,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:49,929 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10515 transitions. [2022-11-20 10:53:49,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:53:49,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10515 transitions. [2022-11-20 10:53:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 10:53:49,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:49,948 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:50,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:50,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:50,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1509153193, now seen corresponding path program 1 times [2022-11-20 10:53:50,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:50,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904160301] [2022-11-20 10:53:50,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:50,175 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 10:53:50,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:50,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:50,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:53:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:56,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 10:53:56,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:56,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:56,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904160301] [2022-11-20 10:53:56,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904160301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:56,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:56,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:53:56,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295660131] [2022-11-20 10:53:56,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:56,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:56,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:56,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:56,997 INFO L87 Difference]: Start difference. First operand 6935 states and 10515 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:53:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:57,351 INFO L93 Difference]: Finished difference Result 13844 states and 20998 transitions. [2022-11-20 10:53:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 152 [2022-11-20 10:53:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:57,385 INFO L225 Difference]: With dead ends: 13844 [2022-11-20 10:53:57,385 INFO L226 Difference]: Without dead ends: 6935 [2022-11-20 10:53:57,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 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 10:53:57,405 INFO L413 NwaCegarLoop]: 5613 mSDtfsCounter, 5564 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5564 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:57,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5564 Valid, 5613 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:53:57,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-11-20 10:53:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2022-11-20 10:53:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5350 states have (on average 1.489532710280374) internal successors, (7969), 5521 states have internal predecessors, (7969), 1276 states have call successors, (1276), 311 states have call predecessors, (1276), 308 states have return successors, (1266), 1217 states have call predecessors, (1266), 1266 states have call successors, (1266) [2022-11-20 10:53:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 10511 transitions. [2022-11-20 10:53:57,887 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 10511 transitions. Word has length 152 [2022-11-20 10:53:57,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:57,887 INFO L495 AbstractCegarLoop]: Abstraction has 6935 states and 10511 transitions. [2022-11-20 10:53:57,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:53:57,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 10511 transitions. [2022-11-20 10:53:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 10:53:57,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:57,905 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:57,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:58,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:58,123 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2006754417, now seen corresponding path program 1 times [2022-11-20 10:53:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:58,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284552176] [2022-11-20 10:53:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:58,126 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 10:53:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:58,127 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:58,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:54:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:03,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:03,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 10:54:04,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:04,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:04,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284552176] [2022-11-20 10:54:04,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284552176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:04,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:04,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:04,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008499313] [2022-11-20 10:54:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:04,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:04,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:04,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:04,171 INFO L87 Difference]: Start difference. First operand 6935 states and 10511 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:54:05,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:54:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:06,135 INFO L93 Difference]: Finished difference Result 17177 states and 25920 transitions. [2022-11-20 10:54:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 153 [2022-11-20 10:54:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:06,178 INFO L225 Difference]: With dead ends: 17177 [2022-11-20 10:54:06,178 INFO L226 Difference]: Without dead ends: 10268 [2022-11-20 10:54:06,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 10:54:06,197 INFO L413 NwaCegarLoop]: 7061 mSDtfsCounter, 3607 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3607 SdHoareTripleChecker+Valid, 11853 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:06,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3607 Valid, 11853 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:54:06,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10268 states. [2022-11-20 10:54:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10268 to 10250. [2022-11-20 10:54:06,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10250 states, 7841 states have (on average 1.4754495600051014) internal successors, (11569), 8109 states have internal predecessors, (11569), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-11-20 10:54:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10250 states to 10250 states and 15401 transitions. [2022-11-20 10:54:07,020 INFO L78 Accepts]: Start accepts. Automaton has 10250 states and 15401 transitions. Word has length 153 [2022-11-20 10:54:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:07,021 INFO L495 AbstractCegarLoop]: Abstraction has 10250 states and 15401 transitions. [2022-11-20 10:54:07,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 10:54:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 10250 states and 15401 transitions. [2022-11-20 10:54:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 10:54:07,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:07,043 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:07,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:07,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:07,258 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash 678979957, now seen corresponding path program 1 times [2022-11-20 10:54:07,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:07,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325345610] [2022-11-20 10:54:07,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:07,262 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 10:54:07,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:07,264 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:07,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:54:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:13,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:54:13,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-20 10:54:13,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:13,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325345610] [2022-11-20 10:54:13,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325345610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:13,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:13,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:54:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782320851] [2022-11-20 10:54:13,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:13,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:54:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:54:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:54:13,321 INFO L87 Difference]: Start difference. First operand 10250 states and 15401 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:54:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:15,954 INFO L93 Difference]: Finished difference Result 24315 states and 36490 transitions. [2022-11-20 10:54:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:54:15,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 168 [2022-11-20 10:54:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:16,093 INFO L225 Difference]: With dead ends: 24315 [2022-11-20 10:54:16,093 INFO L226 Difference]: Without dead ends: 14091 [2022-11-20 10:54:16,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:54:16,120 INFO L413 NwaCegarLoop]: 9187 mSDtfsCounter, 3869 mSDsluCounter, 14500 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 23687 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:16,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 23687 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:54:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14091 states. [2022-11-20 10:54:17,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14091 to 10252. [2022-11-20 10:54:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10252 states, 7843 states have (on average 1.4752008160142802) internal successors, (11570), 8111 states have internal predecessors, (11570), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-11-20 10:54:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10252 states to 10252 states and 15402 transitions. [2022-11-20 10:54:17,143 INFO L78 Accepts]: Start accepts. Automaton has 10252 states and 15402 transitions. Word has length 168 [2022-11-20 10:54:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:17,144 INFO L495 AbstractCegarLoop]: Abstraction has 10252 states and 15402 transitions. [2022-11-20 10:54:17,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:54:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 10252 states and 15402 transitions. [2022-11-20 10:54:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 10:54:17,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:17,180 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:17,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:17,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:17,403 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 62027074, now seen corresponding path program 1 times [2022-11-20 10:54:17,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:17,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822700620] [2022-11-20 10:54:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:17,408 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 10:54:17,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:17,409 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 10:54:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:23,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 3015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:23,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-20 10:54:23,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:23,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:23,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822700620] [2022-11-20 10:54:23,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822700620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:23,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:23,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805171601] [2022-11-20 10:54:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:23,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:23,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:23,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:23,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:23,830 INFO L87 Difference]: Start difference. First operand 10252 states and 15402 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:24,446 INFO L93 Difference]: Finished difference Result 20479 states and 30774 transitions. [2022-11-20 10:54:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:24,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2022-11-20 10:54:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:24,492 INFO L225 Difference]: With dead ends: 20479 [2022-11-20 10:54:24,493 INFO L226 Difference]: Without dead ends: 10253 [2022-11-20 10:54:24,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 10:54:24,525 INFO L413 NwaCegarLoop]: 5615 mSDtfsCounter, 0 mSDsluCounter, 5609 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:24,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:54:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10253 states. [2022-11-20 10:54:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10253 to 10253. [2022-11-20 10:54:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10253 states, 7844 states have (on average 1.4751402345741969) internal successors, (11571), 8112 states have internal predecessors, (11571), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-11-20 10:54:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10253 states to 10253 states and 15403 transitions. [2022-11-20 10:54:25,440 INFO L78 Accepts]: Start accepts. Automaton has 10253 states and 15403 transitions. Word has length 197 [2022-11-20 10:54:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:25,441 INFO L495 AbstractCegarLoop]: Abstraction has 10253 states and 15403 transitions. [2022-11-20 10:54:25,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10253 states and 15403 transitions. [2022-11-20 10:54:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 10:54:25,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:25,468 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:25,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:25,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:25,691 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1737103549, now seen corresponding path program 1 times [2022-11-20 10:54:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:25,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122778386] [2022-11-20 10:54:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:25,694 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 10:54:25,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:25,696 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:25,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 10:54:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:31,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:54:31,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-20 10:54:31,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:31,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:31,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122778386] [2022-11-20 10:54:31,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122778386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:31,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:31,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742540583] [2022-11-20 10:54:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:31,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:31,902 INFO L87 Difference]: Start difference. First operand 10253 states and 15403 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:32,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:32,960 INFO L93 Difference]: Finished difference Result 22516 states and 34004 transitions. [2022-11-20 10:54:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:32,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 199 [2022-11-20 10:54:32,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:33,021 INFO L225 Difference]: With dead ends: 22516 [2022-11-20 10:54:33,021 INFO L226 Difference]: Without dead ends: 12289 [2022-11-20 10:54:33,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 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 10:54:33,058 INFO L413 NwaCegarLoop]: 6940 mSDtfsCounter, 1646 mSDsluCounter, 5049 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 11989 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:33,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 11989 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:54:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12289 states. [2022-11-20 10:54:34,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12289 to 10259. [2022-11-20 10:54:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10259 states, 7850 states have (on average 1.4747770700636942) internal successors, (11577), 8118 states have internal predecessors, (11577), 1921 states have call successors, (1921), 491 states have call predecessors, (1921), 487 states have return successors, (1911), 1824 states have call predecessors, (1911), 1911 states have call successors, (1911) [2022-11-20 10:54:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10259 states to 10259 states and 15409 transitions. [2022-11-20 10:54:34,103 INFO L78 Accepts]: Start accepts. Automaton has 10259 states and 15409 transitions. Word has length 199 [2022-11-20 10:54:34,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:34,105 INFO L495 AbstractCegarLoop]: Abstraction has 10259 states and 15409 transitions. [2022-11-20 10:54:34,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10259 states and 15409 transitions. [2022-11-20 10:54:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 10:54:34,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:34,132 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:34,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:34,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:34,347 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:34,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:34,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1171660353, now seen corresponding path program 1 times [2022-11-20 10:54:34,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:34,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946087565] [2022-11-20 10:54:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:34,352 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 10:54:34,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:34,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:34,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 10:54:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:41,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:54:41,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-11-20 10:54:41,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:54:41,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:41,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946087565] [2022-11-20 10:54:41,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946087565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:54:41,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:54:41,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:54:41,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209537393] [2022-11-20 10:54:41,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:54:41,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:54:41,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:41,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:54:41,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:54:41,268 INFO L87 Difference]: Start difference. First operand 10259 states and 15409 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:42,998 INFO L93 Difference]: Finished difference Result 19580 states and 29417 transitions. [2022-11-20 10:54:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:42,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 199 [2022-11-20 10:54:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:43,032 INFO L225 Difference]: With dead ends: 19580 [2022-11-20 10:54:43,032 INFO L226 Difference]: Without dead ends: 9347 [2022-11-20 10:54:43,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 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 10:54:43,067 INFO L413 NwaCegarLoop]: 8380 mSDtfsCounter, 4781 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 12015 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:43,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 12015 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:54:43,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2022-11-20 10:54:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9329. [2022-11-20 10:54:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9329 states, 7116 states have (on average 1.469505340078696) internal successors, (10457), 7361 states have internal predecessors, (10457), 1776 states have call successors, (1776), 440 states have call predecessors, (1776), 436 states have return successors, (1766), 1686 states have call predecessors, (1766), 1766 states have call successors, (1766) [2022-11-20 10:54:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9329 states to 9329 states and 13999 transitions. [2022-11-20 10:54:43,874 INFO L78 Accepts]: Start accepts. Automaton has 9329 states and 13999 transitions. Word has length 199 [2022-11-20 10:54:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:54:43,875 INFO L495 AbstractCegarLoop]: Abstraction has 9329 states and 13999 transitions. [2022-11-20 10:54:43,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:54:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 9329 states and 13999 transitions. [2022-11-20 10:54:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-20 10:54:43,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:54:43,904 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:54:43,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:54:44,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:54:44,119 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:54:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:54:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -20172558, now seen corresponding path program 1 times [2022-11-20 10:54:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:54:44,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871101980] [2022-11-20 10:54:44,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:54:44,123 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 10:54:44,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:54:44,124 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:54:44,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 10:54:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:59,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-20 10:54:59,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:00,411 INFO L217 Elim1Store]: Index analysis took 313 ms [2022-11-20 10:55:01,855 INFO L321 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-11-20 10:55:01,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 597 treesize of output 646 [2022-11-20 10:55:01,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:02,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:02,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:55:02,228 INFO L217 Elim1Store]: Index analysis took 250 ms [2022-11-20 10:55:03,140 INFO L321 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-11-20 10:55:03,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 88 [2022-11-20 10:55:07,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:07,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-11-20 10:55:07,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:55:07,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-11-20 10:55:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-20 10:55:07,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:07,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:07,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871101980] [2022-11-20 10:55:07,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871101980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:07,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:07,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:55:07,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380682897] [2022-11-20 10:55:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:07,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:55:07,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:55:07,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:55:07,584 INFO L87 Difference]: Start difference. First operand 9329 states and 13999 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:55:08,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:17,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:21,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:23,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:25,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:27,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:33,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:37,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:38,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:39,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:42,774 WARN L539 Checker$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 10:55:44,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:48,620 WARN L539 Checker$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 10:56:00,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:03,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:05,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:11,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:13,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:15,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:17,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:19,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:21,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:22,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:27,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:29,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:31,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:34,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:37,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:45,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:59,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:04,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:57:05,119 INFO L93 Difference]: Finished difference Result 26096 states and 39462 transitions. [2022-11-20 10:57:05,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:57:05,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 198 [2022-11-20 10:57:05,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:57:05,190 INFO L225 Difference]: With dead ends: 26096 [2022-11-20 10:57:05,190 INFO L226 Difference]: Without dead ends: 16793 [2022-11-20 10:57:05,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:57:05,217 INFO L413 NwaCegarLoop]: 6364 mSDtfsCounter, 4421 mSDsluCounter, 14507 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 4 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4421 SdHoareTripleChecker+Valid, 20871 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:57:05,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4421 Valid, 20871 Invalid, 2831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2805 Invalid, 22 Unknown, 0 Unchecked, 115.7s Time] [2022-11-20 10:57:05,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16793 states. [2022-11-20 10:57:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16793 to 16573. [2022-11-20 10:57:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16573 states, 12736 states have (on average 1.4845320351758795) internal successors, (18907), 13230 states have internal predecessors, (18907), 3039 states have call successors, (3039), 827 states have call predecessors, (3039), 797 states have return successors, (3272), 2763 states have call predecessors, (3272), 3027 states have call successors, (3272) [2022-11-20 10:57:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16573 states to 16573 states and 25218 transitions. [2022-11-20 10:57:06,698 INFO L78 Accepts]: Start accepts. Automaton has 16573 states and 25218 transitions. Word has length 198 [2022-11-20 10:57:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:57:06,699 INFO L495 AbstractCegarLoop]: Abstraction has 16573 states and 25218 transitions. [2022-11-20 10:57:06,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 10:57:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 16573 states and 25218 transitions. [2022-11-20 10:57:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-20 10:57:06,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:06,734 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:06,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:57:06,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:57:06,958 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 582185707, now seen corresponding path program 1 times [2022-11-20 10:57:06,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:57:06,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846853307] [2022-11-20 10:57:06,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:06,962 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 10:57:06,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:57:06,964 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:57:06,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 10:57:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:24,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 10:57:24,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:24,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:57:25,140 INFO L217 Elim1Store]: Index analysis took 222 ms [2022-11-20 10:57:26,084 INFO L321 Elim1Store]: treesize reduction 345, result has 16.1 percent of original size [2022-11-20 10:57:26,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 88 [2022-11-20 10:57:26,423 INFO L217 Elim1Store]: Index analysis took 261 ms [2022-11-20 10:57:27,461 INFO L321 Elim1Store]: treesize reduction 446, result has 13.7 percent of original size [2022-11-20 10:57:27,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 597 treesize of output 646 [2022-11-20 10:57:32,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:32,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-11-20 10:57:32,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 10:57:32,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2022-11-20 10:57:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 57 proven. 3 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 10:57:32,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:57:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-20 10:57:33,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:57:33,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846853307] [2022-11-20 10:57:33,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846853307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:57:33,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:57:33,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2022-11-20 10:57:33,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826713538] [2022-11-20 10:57:33,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:57:33,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:57:33,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:57:33,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:57:33,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:57:33,439 INFO L87 Difference]: Start difference. First operand 16573 states and 25218 transitions. Second operand has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 10:57:35,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:36,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:41,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:43,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:47,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:55,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:56,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:00,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:06,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:07,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:09,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:11,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:13,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:15,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:19,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:26,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:28,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:31,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:34,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:35,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:36,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:39,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:41,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:43,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:45,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:47,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:49,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:51,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:54,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:55,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:57,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:01,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:03,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:04,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:07,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:09,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:11,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:13,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:19,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:20,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:22,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:25,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:52,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:54,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:56,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:59:58,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:05,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:09,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:14,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:16,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:18,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:20,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:22,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:24,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:25,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:27,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:29,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:32,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:34,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:36,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:38,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:52,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:54,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:56,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:00:57,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:00,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:02,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:03,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:08,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:11,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:14,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:16,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:19,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:27,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:29,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:31,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:33,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:37,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:40,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:42,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:44,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:46,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:48,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:50,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:53,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:55,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:57,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:01:59,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:01,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:21,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:23,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:31,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:33,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:50,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:52,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:54,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:02:56,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:34,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:36,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:44,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:46,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:48,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:50,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:54,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:56,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:03:58,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:00,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:11,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:13,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:15,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:17,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:19,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:21,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:36,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:38,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:40,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:42,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:04:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:04:45,323 INFO L93 Difference]: Finished difference Result 39880 states and 60712 transitions. [2022-11-20 11:04:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:04:45,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 200 [2022-11-20 11:04:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:04:45,406 INFO L225 Difference]: With dead ends: 39880 [2022-11-20 11:04:45,406 INFO L226 Difference]: Without dead ends: 23333 [2022-11-20 11:04:45,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:04:45,440 INFO L413 NwaCegarLoop]: 8358 mSDtfsCounter, 8817 mSDsluCounter, 32485 mSDsCounter, 0 mSdLazyCounter, 9285 mSolverCounterSat, 16 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 412.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8817 SdHoareTripleChecker+Valid, 40843 SdHoareTripleChecker+Invalid, 9377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 9285 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 428.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:04:45,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8817 Valid, 40843 Invalid, 9377 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 9285 Invalid, 76 Unknown, 0 Unchecked, 428.5s Time] [2022-11-20 11:04:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23333 states. [2022-11-20 11:04:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23333 to 22812. [2022-11-20 11:04:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22812 states, 17560 states have (on average 1.489009111617312) internal successors, (26147), 18263 states have internal predecessors, (26147), 4143 states have call successors, (4143), 1150 states have call predecessors, (4143), 1108 states have return successors, (4578), 3716 states have call predecessors, (4578), 4129 states have call successors, (4578) [2022-11-20 11:04:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22812 states to 22812 states and 34868 transitions. [2022-11-20 11:04:47,662 INFO L78 Accepts]: Start accepts. Automaton has 22812 states and 34868 transitions. Word has length 200 [2022-11-20 11:04:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:04:47,663 INFO L495 AbstractCegarLoop]: Abstraction has 22812 states and 34868 transitions. [2022-11-20 11:04:47,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.3) internal successors, (173), 10 states have internal predecessors, (173), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 11:04:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 22812 states and 34868 transitions. [2022-11-20 11:04:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 11:04:47,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:04:47,695 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:04:47,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:04:47,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:04:47,919 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:04:47,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:47,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1639177444, now seen corresponding path program 1 times [2022-11-20 11:04:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:04:47,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531495152] [2022-11-20 11:04:47,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:47,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:04:47,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:04:47,922 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:04:47,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02128b43-b6c0-408e-a123-cf3417195861/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 11:05:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:08,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-20 11:05:08,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:09,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:05:09,387 INFO L321 Elim1Store]: treesize reduction 136, result has 12.3 percent of original size [2022-11-20 11:05:09,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 153 [2022-11-20 11:05:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:05:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:05:09,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 11:05:09,764 INFO L321 Elim1Store]: treesize reduction 122, result has 9.6 percent of original size [2022-11-20 11:05:09,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 81