./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.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_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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_30f12f31-f414-488d-b82c-fb0f28c2a715/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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- 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 10:58:39,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:39,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:39,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:39,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:39,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:39,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:39,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:39,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:39,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:39,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:39,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:39,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:39,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:39,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:39,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:39,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:39,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:39,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:39,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:39,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:39,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:39,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:39,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:39,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:39,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:39,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:39,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:39,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:39,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:39,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:39,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:39,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:39,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:39,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:39,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:39,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:39,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:39,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:39,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:39,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:39,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:58:39,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:39,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:39,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:39,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:39,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:58:39,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:58:39,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:39,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:39,569 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:39,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:39,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:39,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:39,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:58:39,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:58:39,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:58:39,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:39,572 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:39,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:58:39,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:39,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:39,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:58:39,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:39,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:39,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:58:39,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:58:39,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:39,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:58:39,574 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:58:39,575 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:58:39,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:58:39,575 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_30f12f31-f414-488d-b82c-fb0f28c2a715/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-11-20 10:58:39,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:39,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:39,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:39,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:39,982 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:39,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:58:43,078 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:43,887 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:43,888 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:58:43,945 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/8ef0b3193/3d8e15638d80440cb88ee5d4142ae8ed/FLAG7b80b22d5 [2022-11-20 10:58:43,967 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/8ef0b3193/3d8e15638d80440cb88ee5d4142ae8ed [2022-11-20 10:58:43,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:43,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:43,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:43,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:43,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:43,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:43" (1/1) ... [2022-11-20 10:58:43,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4272a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:43, skipping insertion in model container [2022-11-20 10:58:43,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:43" (1/1) ... [2022-11-20 10:58:43,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:44,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:46,752 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 10:58:46,762 INFO L158 Benchmark]: Toolchain (without parser) took 2788.13ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 96.4MB in the beginning and 107.7MB in the end (delta: -11.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-20 10:58:46,763 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 144.7MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:58:46,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2781.70ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 96.4MB in the beginning and 107.7MB in the end (delta: -11.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-20 10:58:46,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 144.7MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2781.70ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 96.4MB in the beginning and 107.7MB in the end (delta: -11.3MB). Peak memory consumption was 49.5MB. 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_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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_30f12f31-f414-488d-b82c-fb0f28c2a715/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 d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- 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 10:58:49,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:49,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:49,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:49,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:49,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:49,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:49,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:49,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:49,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:49,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:49,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:49,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:49,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:49,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:49,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:49,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:49,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:49,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:49,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:49,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:49,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:49,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:49,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:49,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:49,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:49,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:49,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:49,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:49,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:49,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:49,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:49,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:49,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:49,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:49,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:49,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:49,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:49,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:49,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:49,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:49,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:58:49,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:49,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:49,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:49,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:49,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:58:49,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:58:49,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:49,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:49,416 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:49,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:49,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:49,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:58:49,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:58:49,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:58:49,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:58:49,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:58:49,418 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:58:49,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:49,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:49,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:58:49,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:49,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:49,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:58:49,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:49,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:49,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:58:49,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:58:49,421 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:58:49,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:58:49,421 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:58:49,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:58:49,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:58:49,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:58:49,422 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_30f12f31-f414-488d-b82c-fb0f28c2a715/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2022-11-20 10:58:49,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:49,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:49,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:49,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:49,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:49,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:58:53,151 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:53,941 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:53,942 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:58:54,015 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/808a7e65a/33f905a7b20342188fcd46676aca48ee/FLAG55ec2daaf [2022-11-20 10:58:54,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/data/808a7e65a/33f905a7b20342188fcd46676aca48ee [2022-11-20 10:58:54,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:54,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:54,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:54,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:54,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:54,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:54" (1/1) ... [2022-11-20 10:58:54,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bc21bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:54, skipping insertion in model container [2022-11-20 10:58:54,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:54" (1/1) ... [2022-11-20 10:58:54,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:54,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:57,677 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_30f12f31-f414-488d-b82c-fb0f28c2a715/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-11-20 10:58:57,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:57,937 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:58:58,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:58,553 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_30f12f31-f414-488d-b82c-fb0f28c2a715/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-11-20 10:58:58,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:58,702 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:59,415 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_30f12f31-f414-488d-b82c-fb0f28c2a715/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2022-11-20 10:58:59,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:59,696 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:59,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59 WrapperNode [2022-11-20 10:58:59,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:59,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:59,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:59,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:59,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:58:59,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,214 INFO L138 Inliner]: procedures = 445, calls = 5313, calls flagged for inlining = 154, calls inlined = 136, statements flattened = 9926 [2022-11-20 10:59:00,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:59:00,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:59:00,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:59:00,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:59:00,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:59:00,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:59:00,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:59:00,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:59:00,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (1/1) ... [2022-11-20 10:59:00,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:59:00,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:00,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:59:01,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:59:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2022-11-20 10:59:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2022-11-20 10:59:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2022-11-20 10:59:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2022-11-20 10:59:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:59:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:59:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 10:59:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 10:59:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:59:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:59:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2022-11-20 10:59:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2022-11-20 10:59:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2022-11-20 10:59:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2022-11-20 10:59:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_ULONG~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2022-11-20 10:59:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2022-11-20 10:59:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2022-11-20 10:59:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2022-11-20 10:59:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-20 10:59:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2022-11-20 10:59:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2022-11-20 10:59:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:59:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:59:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2022-11-20 10:59:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2022-11-20 10:59:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2022-11-20 10:59:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2022-11-20 10:59:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:59:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:59:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2022-11-20 10:59:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2022-11-20 10:59:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:59:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:59:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:59:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2022-11-20 10:59:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:59:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2022-11-20 10:59:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2022-11-20 10:59:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2022-11-20 10:59:01,060 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2022-11-20 10:59:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-11-20 10:59:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~TO~VOID [2022-11-20 10:59:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2022-11-20 10:59:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2022-11-20 10:59:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-11-20 10:59:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~TO~C_SHORT [2022-11-20 10:59:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:59:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:59:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:59:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:59:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2022-11-20 10:59:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2022-11-20 10:59:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2022-11-20 10:59:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2022-11-20 10:59:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2022-11-20 10:59:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2022-11-20 10:59:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2022-11-20 10:59:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2022-11-20 10:59:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:59:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:59:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-11-20 10:59:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-11-20 10:59:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:59:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:59:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~C_INT [2022-11-20 10:59:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~C_INT [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2022-11-20 10:59:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2022-11-20 10:59:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2022-11-20 10:59:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2022-11-20 10:59:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2022-11-20 10:59:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2022-11-20 10:59:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-20 10:59:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 10:59:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 10:59:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 10:59:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 10:59:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2022-11-20 10:59:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2022-11-20 10:59:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:59:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:59:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:59:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2022-11-20 10:59:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2022-11-20 10:59:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-20 10:59:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-11-20 10:59:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UINT~TO~C_UINT [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:59:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2022-11-20 10:59:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2022-11-20 10:59:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2022-11-20 10:59:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2022-11-20 10:59:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:59:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2022-11-20 10:59:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2022-11-20 10:59:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2022-11-20 10:59:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2022-11-20 10:59:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2022-11-20 10:59:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2022-11-20 10:59:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-20 10:59:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-20 10:59:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2022-11-20 10:59:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-20 10:59:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2022-11-20 10:59:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2022-11-20 10:59:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2022-11-20 10:59:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2022-11-20 10:59:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2022-11-20 10:59:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-11-20 10:59:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-11-20 10:59:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-11-20 10:59:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-11-20 10:59:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 10:59:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 10:59:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:59:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:59:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:59:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:59:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2022-11-20 10:59:01,137 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2022-11-20 10:59:01,137 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 10:59:01,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:59:01,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:59:01,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 10:59:01,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2022-11-20 10:59:01,138 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2022-11-20 10:59:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2022-11-20 10:59:01,138 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2022-11-20 10:59:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2022-11-20 10:59:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2022-11-20 10:59:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:59:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:59:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2022-11-20 10:59:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2022-11-20 10:59:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:59:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:59:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2022-11-20 10:59:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2022-11-20 10:59:01,144 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2022-11-20 10:59:01,144 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2022-11-20 10:59:01,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:59:01,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:59:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:59:01,145 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:59:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 10:59:01,145 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 10:59:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 10:59:01,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 10:59:01,146 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2022-11-20 10:59:01,146 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2022-11-20 10:59:01,146 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 10:59:01,146 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 10:59:01,146 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-20 10:59:01,147 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-20 10:59:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-20 10:59:01,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-20 10:59:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:59:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2022-11-20 10:59:01,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2022-11-20 10:59:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-20 10:59:01,148 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-20 10:59:01,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:59:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 10:59:01,149 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 10:59:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2022-11-20 10:59:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2022-11-20 10:59:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2022-11-20 10:59:01,151 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2022-11-20 10:59:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-20 10:59:01,151 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-20 10:59:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:59:01,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~X~C_INT~TO~C_INT [2022-11-20 10:59:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:59:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:59:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:59:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:59:01,153 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2022-11-20 10:59:01,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2022-11-20 10:59:01,153 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2022-11-20 10:59:01,154 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2022-11-20 10:59:01,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:59:01,154 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2022-11-20 10:59:01,154 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2022-11-20 10:59:01,154 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 10:59:01,155 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 10:59:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2022-11-20 10:59:01,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2022-11-20 10:59:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2022-11-20 10:59:01,156 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2022-11-20 10:59:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 10:59:01,156 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 10:59:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 10:59:01,156 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 10:59:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2022-11-20 10:59:01,157 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2022-11-20 10:59:01,158 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2022-11-20 10:59:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2022-11-20 10:59:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-11-20 10:59:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_UCHAR~TO~C_INT [2022-11-20 10:59:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_INT~TO~VOID [2022-11-20 10:59:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2022-11-20 10:59:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2022-11-20 10:59:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2022-11-20 10:59:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2022-11-20 10:59:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2022-11-20 10:59:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2022-11-20 10:59:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2022-11-20 10:59:01,171 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2022-11-20 10:59:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2022-11-20 10:59:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2022-11-20 10:59:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2022-11-20 10:59:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2022-11-20 10:59:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2022-11-20 10:59:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2022-11-20 10:59:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:59:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:59:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:59:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:59:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:59:01,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:59:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-20 10:59:01,173 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-20 10:59:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2022-11-20 10:59:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2022-11-20 10:59:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2022-11-20 10:59:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2022-11-20 10:59:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-20 10:59:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-20 10:59:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:59:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:59:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2022-11-20 10:59:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2022-11-20 10:59:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 10:59:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 10:59:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2022-11-20 10:59:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2022-11-20 10:59:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2022-11-20 10:59:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2022-11-20 10:59:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 10:59:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 10:59:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 10:59:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 10:59:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2022-11-20 10:59:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2022-11-20 10:59:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2022-11-20 10:59:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2022-11-20 10:59:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2022-11-20 10:59:01,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2022-11-20 10:59:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2022-11-20 10:59:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2022-11-20 10:59:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2022-11-20 10:59:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2022-11-20 10:59:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:59:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:59:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 10:59:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 10:59:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2022-11-20 10:59:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2022-11-20 10:59:02,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:59:02,449 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:59:03,902 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:59:04,445 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0bv64 != ~tmp___1~2;#res := ~ret~3; [2022-11-20 10:59:04,445 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0bv64 != ~tmp___1~2);#res := ~ret~3; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0bv64 != ~tmp___0~8;#res := ~ret~3; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0bv64 != ~tmp___0~8);#res := ~ret~3; [2022-11-20 10:59:04,446 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16bv32 == ~size; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10bv32 == ~size; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2bv32 == ~size; [2022-11-20 10:59:04,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2022-11-20 10:59:04,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8bv32 == ~size; [2022-11-20 10:59:04,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := ~tmp___2~1[32:0]; [2022-11-20 10:59:04,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843: SUMMARY for call #t~ret123 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-11-20 10:59:04,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2022-11-20 10:59:04,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4bv32 == ~size; [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: ~tmp___1~2 := #t~ret122;havoc #t~ret122; [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833: SUMMARY for call #t~ret122 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: ~tmp___0~8 := #t~ret121;havoc #t~ret121; [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821: SUMMARY for call #t~ret121 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != ~ret~3 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2022-11-20 10:59:04,449 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2022-11-20 11:00:41,199 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2022-11-20 11:00:41,199 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,199 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 4bv32 == __copy_from_user_~size#1; [2022-11-20 11:00:41,199 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 8bv32 == __copy_from_user_~size#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 10bv32 == __copy_from_user_~size#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 16bv32 == __copy_from_user_~size#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761-1: __copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret116#1;havoc __copy_from_user_#t~ret116#1; [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761: SUMMARY for call __copy_from_user_#t~ret116#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:00:41,200 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume 0bv64 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume !(0bv64 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774: SUMMARY for call __copy_from_user_#t~ret117#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774-1: __copy_from_user_~tmp___1~1#1 := __copy_from_user_#t~ret117#1;havoc __copy_from_user_#t~ret117#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume 0bv64 != __copy_from_user_~tmp___1~1#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume !(0bv64 != __copy_from_user_~tmp___1~1#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2022-11-20 11:00:41,202 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2022-11-20 11:00:41,202 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784: SUMMARY for call __copy_from_user_#t~ret118#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 11:00:41,202 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784-1: __copy_from_user_~tmp___2~0#1 := __copy_from_user_#t~ret118#1;havoc __copy_from_user_#t~ret118#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~0#1[32:0]; [2022-11-20 11:00:41,202 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##694: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2022-11-20 11:00:41,202 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##695: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 2bv32 == __copy_from_user_~size#1; [2022-11-20 11:00:41,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:00:41,487 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:00:41,487 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:00:41,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:00:41 BoogieIcfgContainer [2022-11-20 11:00:41,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:00:41,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:00:41,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:00:41,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:00:41,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:58:54" (1/3) ... [2022-11-20 11:00:41,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64952e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:00:41, skipping insertion in model container [2022-11-20 11:00:41,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:59" (2/3) ... [2022-11-20 11:00:41,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64952e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:00:41, skipping insertion in model container [2022-11-20 11:00:41,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:00:41" (3/3) ... [2022-11-20 11:00:41,513 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 11:00:41,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:00:41,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:00:41,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:00:41,714 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;@150317a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:00:41,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:00:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 3707 states, 2822 states have (on average 1.4992912827781715) internal successors, (4231), 2912 states have internal predecessors, (4231), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) [2022-11-20 11:00:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 11:00:41,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:00:41,761 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:00:41,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:00:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:00:41,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1104170668, now seen corresponding path program 1 times [2022-11-20 11:00:41,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:00:41,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226752466] [2022-11-20 11:00:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:00:41,802 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 11:00:41,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:00:41,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:00:41,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:00:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:00:48,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:00:48,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:00:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 11:00:48,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:00:48,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:00:48,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226752466] [2022-11-20 11:00:48,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226752466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:00:48,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:00:48,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:00:48,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137077708] [2022-11-20 11:00:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:00:48,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:00:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:00:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:00:48,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:00:48,626 INFO L87 Difference]: Start difference. First operand has 3707 states, 2822 states have (on average 1.4992912827781715) internal successors, (4231), 2912 states have internal predecessors, (4231), 750 states have call successors, (750), 134 states have call predecessors, (750), 133 states have return successors, (742), 724 states have call predecessors, (742), 742 states have call successors, (742) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:00:48,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:00:48,971 INFO L93 Difference]: Finished difference Result 7409 states and 11484 transitions. [2022-11-20 11:00:48,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:00:48,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2022-11-20 11:00:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:00:49,024 INFO L225 Difference]: With dead ends: 7409 [2022-11-20 11:00:49,024 INFO L226 Difference]: Without dead ends: 3692 [2022-11-20 11:00:49,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:00:49,057 INFO L413 NwaCegarLoop]: 5715 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5715 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:00:49,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5715 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:00:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2022-11-20 11:00:49,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3692. [2022-11-20 11:00:49,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3692 states, 2817 states have (on average 1.4959176428824992) internal successors, (4214), 2897 states have internal predecessors, (4214), 742 states have call successors, (742), 133 states have call predecessors, (742), 132 states have return successors, (738), 720 states have call predecessors, (738), 738 states have call successors, (738) [2022-11-20 11:00:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 5694 transitions. [2022-11-20 11:00:49,501 INFO L78 Accepts]: Start accepts. Automaton has 3692 states and 5694 transitions. Word has length 193 [2022-11-20 11:00:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:00:49,501 INFO L495 AbstractCegarLoop]: Abstraction has 3692 states and 5694 transitions. [2022-11-20 11:00:49,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:00:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3692 states and 5694 transitions. [2022-11-20 11:00:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 11:00:49,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:00:49,517 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:00:49,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:00:49,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:00:49,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:00:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:00:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 396616904, now seen corresponding path program 1 times [2022-11-20 11:00:49,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:00:49,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568653934] [2022-11-20 11:00:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:00:49,739 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 11:00:49,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:00:49,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:00:49,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:00:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:00:57,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:00:57,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:00:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-20 11:00:57,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:00:57,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:00:57,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568653934] [2022-11-20 11:00:57,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568653934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:00:57,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:00:57,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:00:57,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173160030] [2022-11-20 11:00:57,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:00:57,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:00:57,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:00:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:00:57,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:00:57,606 INFO L87 Difference]: Start difference. First operand 3692 states and 5694 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:01:00,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:00,453 INFO L93 Difference]: Finished difference Result 7374 states and 11409 transitions. [2022-11-20 11:01:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:01:00,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2022-11-20 11:01:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:00,483 INFO L225 Difference]: With dead ends: 7374 [2022-11-20 11:01:00,484 INFO L226 Difference]: Without dead ends: 3695 [2022-11-20 11:01:00,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:01:00,504 INFO L413 NwaCegarLoop]: 5658 mSDtfsCounter, 6 mSDsluCounter, 22561 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28219 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:00,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28219 Invalid, 274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:01:00,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-11-20 11:01:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2022-11-20 11:01:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2819 states have (on average 1.4959205391982973) internal successors, (4217), 2900 states have internal predecessors, (4217), 742 states have call successors, (742), 133 states have call predecessors, (742), 133 states have return successors, (744), 720 states have call predecessors, (744), 738 states have call successors, (744) [2022-11-20 11:01:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5703 transitions. [2022-11-20 11:01:00,677 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5703 transitions. Word has length 193 [2022-11-20 11:01:00,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:00,679 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5703 transitions. [2022-11-20 11:01:00,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:01:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5703 transitions. [2022-11-20 11:01:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-20 11:01:00,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:00,686 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:00,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:00,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:00,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 39276949, now seen corresponding path program 1 times [2022-11-20 11:01:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634398780] [2022-11-20 11:01:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:00,908 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 11:01:00,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:00,910 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:00,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:01:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:08,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:01:08,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-20 11:01:08,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-11-20 11:01:10,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:10,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634398780] [2022-11-20 11:01:10,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634398780] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:10,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:01:10,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 11:01:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538426177] [2022-11-20 11:01:10,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:10,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:01:10,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:10,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:01:10,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:01:10,142 INFO L87 Difference]: Start difference. First operand 3695 states and 5703 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:01:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:14,235 INFO L93 Difference]: Finished difference Result 7385 states and 11433 transitions. [2022-11-20 11:01:14,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:01:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 201 [2022-11-20 11:01:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:14,271 INFO L225 Difference]: With dead ends: 7385 [2022-11-20 11:01:14,271 INFO L226 Difference]: Without dead ends: 3703 [2022-11-20 11:01:14,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:01:14,296 INFO L413 NwaCegarLoop]: 5660 mSDtfsCounter, 16 mSDsluCounter, 28187 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33847 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:14,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33847 Invalid, 411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 11:01:14,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2022-11-20 11:01:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3701. [2022-11-20 11:01:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 2823 states have (on average 1.4955720864328728) internal successors, (4222), 2904 states have internal predecessors, (4222), 743 states have call successors, (743), 134 states have call predecessors, (743), 134 states have return successors, (745), 721 states have call predecessors, (745), 739 states have call successors, (745) [2022-11-20 11:01:14,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5710 transitions. [2022-11-20 11:01:14,493 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5710 transitions. Word has length 201 [2022-11-20 11:01:14,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:14,494 INFO L495 AbstractCegarLoop]: Abstraction has 3701 states and 5710 transitions. [2022-11-20 11:01:14,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:01:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5710 transitions. [2022-11-20 11:01:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-20 11:01:14,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:14,503 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:14,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:14,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:14,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:14,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash 215474091, now seen corresponding path program 2 times [2022-11-20 11:01:14,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:14,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439690415] [2022-11-20 11:01:14,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:01:14,726 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 11:01:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:14,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:14,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:01:20,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:01:20,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:01:20,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:01:20,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-11-20 11:01:23,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:23,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:23,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439690415] [2022-11-20 11:01:23,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439690415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:23,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:23,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:01:23,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051600277] [2022-11-20 11:01:23,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:23,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:01:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:23,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:01:23,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:23,428 INFO L87 Difference]: Start difference. First operand 3701 states and 5710 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:01:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:23,647 INFO L93 Difference]: Finished difference Result 5261 states and 8021 transitions. [2022-11-20 11:01:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:01:23,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 208 [2022-11-20 11:01:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:23,695 INFO L225 Difference]: With dead ends: 5261 [2022-11-20 11:01:23,696 INFO L226 Difference]: Without dead ends: 5256 [2022-11-20 11:01:23,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:23,703 INFO L413 NwaCegarLoop]: 6479 mSDtfsCounter, 2314 mSDsluCounter, 5589 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 12068 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:23,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 12068 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:01:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2022-11-20 11:01:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 5253. [2022-11-20 11:01:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 3980 states have (on average 1.4829145728643216) internal successors, (5902), 4111 states have internal predecessors, (5902), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-11-20 11:01:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 8013 transitions. [2022-11-20 11:01:23,980 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 8013 transitions. Word has length 208 [2022-11-20 11:01:23,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:23,982 INFO L495 AbstractCegarLoop]: Abstraction has 5253 states and 8013 transitions. [2022-11-20 11:01:23,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:01:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 8013 transitions. [2022-11-20 11:01:23,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-20 11:01:23,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:24,011 INFO L195 NwaCegarLoop]: trace histogram [14, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:24,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:24,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:24,212 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:24,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1549174281, now seen corresponding path program 1 times [2022-11-20 11:01:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:24,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475507645] [2022-11-20 11:01:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:24,215 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 11:01:24,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:24,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:24,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:01:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:31,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 3167 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:01:31,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-11-20 11:01:31,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-11-20 11:01:33,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:33,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475507645] [2022-11-20 11:01:33,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475507645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:33,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:01:33,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 11:01:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442555368] [2022-11-20 11:01:33,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:33,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:01:33,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:01:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:01:33,553 INFO L87 Difference]: Start difference. First operand 5253 states and 8013 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:01:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:39,083 INFO L93 Difference]: Finished difference Result 10512 states and 16089 transitions. [2022-11-20 11:01:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:01:39,085 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 216 [2022-11-20 11:01:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:39,126 INFO L225 Difference]: With dead ends: 10512 [2022-11-20 11:01:39,126 INFO L226 Difference]: Without dead ends: 5263 [2022-11-20 11:01:39,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:01:39,150 INFO L413 NwaCegarLoop]: 5661 mSDtfsCounter, 14 mSDsluCounter, 45180 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 50841 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:39,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 50841 Invalid, 640 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-20 11:01:39,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2022-11-20 11:01:39,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5255. [2022-11-20 11:01:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 3982 states have (on average 1.4831742842792566) internal successors, (5906), 4113 states have internal predecessors, (5906), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-11-20 11:01:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8017 transitions. [2022-11-20 11:01:39,395 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8017 transitions. Word has length 216 [2022-11-20 11:01:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:39,396 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8017 transitions. [2022-11-20 11:01:39,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:01:39,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8017 transitions. [2022-11-20 11:01:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-20 11:01:39,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:39,402 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:39,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:39,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:39,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash -581521631, now seen corresponding path program 2 times [2022-11-20 11:01:39,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:39,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691614960] [2022-11-20 11:01:39,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:01:39,620 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 11:01:39,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:39,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:01:45,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:01:45,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:01:45,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:01:45,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-20 11:01:47,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:47,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:47,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691614960] [2022-11-20 11:01:47,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691614960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:47,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:47,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:01:47,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792987600] [2022-11-20 11:01:47,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:47,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:01:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:01:47,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:47,836 INFO L87 Difference]: Start difference. First operand 5255 states and 8017 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:01:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:48,137 INFO L93 Difference]: Finished difference Result 10481 states and 15992 transitions. [2022-11-20 11:01:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:01:48,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 223 [2022-11-20 11:01:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:48,175 INFO L225 Difference]: With dead ends: 10481 [2022-11-20 11:01:48,176 INFO L226 Difference]: Without dead ends: 5255 [2022-11-20 11:01:48,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:48,199 INFO L413 NwaCegarLoop]: 5692 mSDtfsCounter, 5620 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5620 SdHoareTripleChecker+Valid, 5692 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:48,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5620 Valid, 5692 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:01:48,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-11-20 11:01:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5255. [2022-11-20 11:01:48,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 3982 states have (on average 1.4826720241084883) internal successors, (5904), 4113 states have internal predecessors, (5904), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-11-20 11:01:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 8015 transitions. [2022-11-20 11:01:48,468 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 8015 transitions. Word has length 223 [2022-11-20 11:01:48,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:48,469 INFO L495 AbstractCegarLoop]: Abstraction has 5255 states and 8015 transitions. [2022-11-20 11:01:48,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:01:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 8015 transitions. [2022-11-20 11:01:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-20 11:01:48,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:48,474 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:48,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:48,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:48,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:48,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2125097763, now seen corresponding path program 1 times [2022-11-20 11:01:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:48,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805623994] [2022-11-20 11:01:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:48,701 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 11:01:48,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:48,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:01:48,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:01:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:55,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 3243 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:01:55,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2022-11-20 11:01:56,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:01:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2022-11-20 11:01:58,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:58,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805623994] [2022-11-20 11:01:58,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805623994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:01:58,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:01:58,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 11:01:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785625340] [2022-11-20 11:01:58,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:01:58,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:01:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:01:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:01:58,611 INFO L87 Difference]: Start difference. First operand 5255 states and 8015 transitions. Second operand has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:02:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:04,759 INFO L93 Difference]: Finished difference Result 10520 states and 16102 transitions. [2022-11-20 11:02:04,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:02:04,760 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 223 [2022-11-20 11:02:04,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:04,790 INFO L225 Difference]: With dead ends: 10520 [2022-11-20 11:02:04,790 INFO L226 Difference]: Without dead ends: 5269 [2022-11-20 11:02:04,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:02:04,807 INFO L413 NwaCegarLoop]: 5661 mSDtfsCounter, 25 mSDsluCounter, 45173 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50834 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:04,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50834 Invalid, 725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 11:02:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2022-11-20 11:02:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 5257. [2022-11-20 11:02:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3984 states have (on average 1.4829317269076305) internal successors, (5908), 4115 states have internal predecessors, (5908), 1053 states have call successors, (1053), 220 states have call predecessors, (1053), 219 states have return successors, (1058), 1005 states have call predecessors, (1058), 1049 states have call successors, (1058) [2022-11-20 11:02:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8019 transitions. [2022-11-20 11:02:05,063 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8019 transitions. Word has length 223 [2022-11-20 11:02:05,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:05,064 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 8019 transitions. [2022-11-20 11:02:05,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.230769230769231) internal successors, (81), 15 states have internal predecessors, (81), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-11-20 11:02:05,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8019 transitions. [2022-11-20 11:02:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-20 11:02:05,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:05,070 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:05,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:05,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:05,284 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:05,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1097818297, now seen corresponding path program 2 times [2022-11-20 11:02:05,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:05,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51002823] [2022-11-20 11:02:05,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:02:05,288 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 11:02:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:05,289 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:05,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:02:10,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:02:10,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:02:11,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:02:11,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-11-20 11:02:13,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:13,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:13,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51002823] [2022-11-20 11:02:13,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51002823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:13,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:13,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:02:13,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102297990] [2022-11-20 11:02:13,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:13,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:13,668 INFO L87 Difference]: Start difference. First operand 5257 states and 8019 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:02:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:13,829 INFO L93 Difference]: Finished difference Result 5259 states and 8020 transitions. [2022-11-20 11:02:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 230 [2022-11-20 11:02:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:13,859 INFO L225 Difference]: With dead ends: 5259 [2022-11-20 11:02:13,859 INFO L226 Difference]: Without dead ends: 5213 [2022-11-20 11:02:13,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:13,864 INFO L413 NwaCegarLoop]: 5690 mSDtfsCounter, 5604 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5604 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:13,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5604 Valid, 5690 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2022-11-20 11:02:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 5213. [2022-11-20 11:02:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 3953 states have (on average 1.484189223374652) internal successors, (5867), 4083 states have internal predecessors, (5867), 1043 states have call successors, (1043), 217 states have call predecessors, (1043), 216 states have return successors, (1049), 996 states have call predecessors, (1049), 1040 states have call successors, (1049) [2022-11-20 11:02:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 7959 transitions. [2022-11-20 11:02:14,303 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 7959 transitions. Word has length 230 [2022-11-20 11:02:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:14,304 INFO L495 AbstractCegarLoop]: Abstraction has 5213 states and 7959 transitions. [2022-11-20 11:02:14,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:02:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 7959 transitions. [2022-11-20 11:02:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 11:02:14,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:14,310 INFO L195 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 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 11:02:14,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:14,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:14,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 243785069, now seen corresponding path program 1 times [2022-11-20 11:02:14,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:14,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562647637] [2022-11-20 11:02:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:14,534 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 11:02:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:14,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:14,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:02:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 3376 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:02:21,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 198 proven. 10 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-11-20 11:02:22,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2022-11-20 11:02:25,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:25,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562647637] [2022-11-20 11:02:25,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562647637] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:25,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:02:25,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 11:02:25,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600912056] [2022-11-20 11:02:25,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:25,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:02:25,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:02:25,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:02:25,446 INFO L87 Difference]: Start difference. First operand 5213 states and 7959 transitions. Second operand has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-20 11:02:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:33,825 INFO L93 Difference]: Finished difference Result 10446 states and 16017 transitions. [2022-11-20 11:02:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:02:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 239 [2022-11-20 11:02:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:33,859 INFO L225 Difference]: With dead ends: 10446 [2022-11-20 11:02:33,859 INFO L226 Difference]: Without dead ends: 5243 [2022-11-20 11:02:33,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:02:33,879 INFO L413 NwaCegarLoop]: 5661 mSDtfsCounter, 50 mSDsluCounter, 56434 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 62095 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:33,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 62095 Invalid, 987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-20 11:02:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2022-11-20 11:02:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 5231. [2022-11-20 11:02:34,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 3969 states have (on average 1.4847568657092467) internal successors, (5893), 4099 states have internal predecessors, (5893), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-11-20 11:02:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 7992 transitions. [2022-11-20 11:02:34,300 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 7992 transitions. Word has length 239 [2022-11-20 11:02:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:34,301 INFO L495 AbstractCegarLoop]: Abstraction has 5231 states and 7992 transitions. [2022-11-20 11:02:34,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.133333333333334) internal successors, (92), 17 states have internal predecessors, (92), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-20 11:02:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 7992 transitions. [2022-11-20 11:02:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-20 11:02:34,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:34,307 INFO L195 NwaCegarLoop]: trace histogram [33, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 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 11:02:34,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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)] Ended with exit code 0 [2022-11-20 11:02:34,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:34,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:34,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:34,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1754523288, now seen corresponding path program 1 times [2022-11-20 11:02:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732448704] [2022-11-20 11:02:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:34,525 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 11:02:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:34,527 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:34,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:02:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:41,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 3432 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:02:41,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 252 proven. 15 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-11-20 11:02:42,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-11-20 11:02:45,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:45,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732448704] [2022-11-20 11:02:45,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732448704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:45,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:02:45,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 11:02:45,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955720352] [2022-11-20 11:02:45,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:45,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:02:45,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:45,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:02:45,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:02:45,920 INFO L87 Difference]: Start difference. First operand 5231 states and 7992 transitions. Second operand has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-20 11:02:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:55,325 INFO L93 Difference]: Finished difference Result 10470 states and 16025 transitions. [2022-11-20 11:02:55,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:02:55,327 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 245 [2022-11-20 11:02:55,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:55,352 INFO L225 Difference]: With dead ends: 10470 [2022-11-20 11:02:55,352 INFO L226 Difference]: Without dead ends: 5249 [2022-11-20 11:02:55,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:02:55,370 INFO L413 NwaCegarLoop]: 5662 mSDtfsCounter, 59 mSDsluCounter, 56447 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 62109 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:55,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 62109 Invalid, 1094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-20 11:02:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2022-11-20 11:02:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 5233. [2022-11-20 11:02:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 3971 states have (on average 1.4850163686728783) internal successors, (5897), 4101 states have internal predecessors, (5897), 1043 states have call successors, (1043), 219 states have call predecessors, (1043), 218 states have return successors, (1056), 996 states have call predecessors, (1056), 1040 states have call successors, (1056) [2022-11-20 11:02:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 7996 transitions. [2022-11-20 11:02:55,691 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 7996 transitions. Word has length 245 [2022-11-20 11:02:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:55,691 INFO L495 AbstractCegarLoop]: Abstraction has 5233 states and 7996 transitions. [2022-11-20 11:02:55,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.588235294117647) internal successors, (95), 19 states have internal predecessors, (95), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-20 11:02:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 7996 transitions. [2022-11-20 11:02:55,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-20 11:02:55,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:55,697 INFO L195 NwaCegarLoop]: trace histogram [38, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 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 11:02:55,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:55,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:55,920 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:55,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1600128941, now seen corresponding path program 2 times [2022-11-20 11:02:55,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:55,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651087161] [2022-11-20 11:02:55,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:02:55,924 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 11:02:55,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:55,926 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:02:55,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:03:01,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:03:01,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:03:01,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2605 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:03:01,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1368 trivial. 0 not checked. [2022-11-20 11:03:01,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:03:01,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651087161] [2022-11-20 11:03:01,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651087161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:01,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:01,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:03:01,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319166751] [2022-11-20 11:03:01,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:01,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:03:01,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:03:01,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:03:01,808 INFO L87 Difference]: Start difference. First operand 5233 states and 7996 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 11:03:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:02,600 INFO L93 Difference]: Finished difference Result 12384 states and 18845 transitions. [2022-11-20 11:03:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:03:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 249 [2022-11-20 11:03:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:02,633 INFO L225 Difference]: With dead ends: 12384 [2022-11-20 11:03:02,633 INFO L226 Difference]: Without dead ends: 7176 [2022-11-20 11:03:02,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:03:02,651 INFO L413 NwaCegarLoop]: 5925 mSDtfsCounter, 1485 mSDsluCounter, 5613 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 11538 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:02,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 11538 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:03:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2022-11-20 11:03:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7169. [2022-11-20 11:03:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 5477 states have (on average 1.48219828373197) internal successors, (8118), 5653 states have internal predecessors, (8118), 1366 states have call successors, (1366), 326 states have call predecessors, (1366), 325 states have return successors, (1379), 1307 states have call predecessors, (1379), 1363 states have call successors, (1379) [2022-11-20 11:03:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10863 transitions. [2022-11-20 11:03:03,154 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10863 transitions. Word has length 249 [2022-11-20 11:03:03,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:03,155 INFO L495 AbstractCegarLoop]: Abstraction has 7169 states and 10863 transitions. [2022-11-20 11:03:03,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 11:03:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10863 transitions. [2022-11-20 11:03:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-20 11:03:03,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:03,163 INFO L195 NwaCegarLoop]: trace histogram [38, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:03,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:03,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:03,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash 221389303, now seen corresponding path program 1 times [2022-11-20 11:03:03,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:03:03,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516481003] [2022-11-20 11:03:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:03,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:03:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:03:03,389 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:03,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:03:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 3626 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:03:10,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 482 proven. 21 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-11-20 11:03:11,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:03:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2022-11-20 11:03:15,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:15,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516481003] [2022-11-20 11:03:15,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516481003] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:03:15,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:03:15,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-20 11:03:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793442653] [2022-11-20 11:03:15,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:03:15,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:03:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:15,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:03:15,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:03:15,423 INFO L87 Difference]: Start difference. First operand 7169 states and 10863 transitions. Second operand has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-20 11:03:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:26,021 INFO L93 Difference]: Finished difference Result 14362 states and 21796 transitions. [2022-11-20 11:03:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:03:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 305 [2022-11-20 11:03:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:26,057 INFO L225 Difference]: With dead ends: 14362 [2022-11-20 11:03:26,058 INFO L226 Difference]: Without dead ends: 7193 [2022-11-20 11:03:26,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2022-11-20 11:03:26,078 INFO L413 NwaCegarLoop]: 5663 mSDtfsCounter, 86 mSDsluCounter, 62119 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 67782 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:26,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 67782 Invalid, 1296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-20 11:03:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-11-20 11:03:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 7173. [2022-11-20 11:03:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 5481 states have (on average 1.4822112753147236) internal successors, (8124), 5657 states have internal predecessors, (8124), 1366 states have call successors, (1366), 326 states have call predecessors, (1366), 325 states have return successors, (1379), 1307 states have call predecessors, (1379), 1363 states have call successors, (1379) [2022-11-20 11:03:26,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10869 transitions. [2022-11-20 11:03:26,459 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10869 transitions. Word has length 305 [2022-11-20 11:03:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:26,461 INFO L495 AbstractCegarLoop]: Abstraction has 7173 states and 10869 transitions. [2022-11-20 11:03:26,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.842105263157895) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (42), 2 states have call predecessors, (42), 5 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2022-11-20 11:03:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10869 transitions. [2022-11-20 11:03:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-20 11:03:26,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:26,467 INFO L195 NwaCegarLoop]: trace histogram [43, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:26,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:26,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:26,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:26,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash -736847599, now seen corresponding path program 2 times [2022-11-20 11:03:26,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:03:26,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174482976] [2022-11-20 11:03:26,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:03:26,696 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 11:03:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:03:26,704 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:03:32,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:03:32,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:03:32,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:03:32,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2022-11-20 11:03:32,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:03:32,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:32,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174482976] [2022-11-20 11:03:32,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174482976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:32,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:32,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:03:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796225999] [2022-11-20 11:03:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:32,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:03:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:03:32,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:03:32,830 INFO L87 Difference]: Start difference. First operand 7173 states and 10869 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:03:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:33,501 INFO L93 Difference]: Finished difference Result 14316 states and 21695 transitions. [2022-11-20 11:03:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:03:33,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 310 [2022-11-20 11:03:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:33,532 INFO L225 Difference]: With dead ends: 14316 [2022-11-20 11:03:33,532 INFO L226 Difference]: Without dead ends: 7172 [2022-11-20 11:03:33,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:03:33,553 INFO L413 NwaCegarLoop]: 7438 mSDtfsCounter, 5571 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5571 SdHoareTripleChecker+Valid, 9763 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:33,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5571 Valid, 9763 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:03:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states. [2022-11-20 11:03:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7172 to 7172. [2022-11-20 11:03:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 5481 states have (on average 1.4818463783981026) internal successors, (8122), 5656 states have internal predecessors, (8122), 1365 states have call successors, (1365), 326 states have call predecessors, (1365), 325 states have return successors, (1369), 1307 states have call predecessors, (1369), 1355 states have call successors, (1369) [2022-11-20 11:03:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 10856 transitions. [2022-11-20 11:03:33,955 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 10856 transitions. Word has length 310 [2022-11-20 11:03:33,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:33,956 INFO L495 AbstractCegarLoop]: Abstraction has 7172 states and 10856 transitions. [2022-11-20 11:03:33,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:03:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 10856 transitions. [2022-11-20 11:03:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-20 11:03:33,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:33,970 INFO L195 NwaCegarLoop]: trace histogram [43, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2022-11-20 11:03:34,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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)] Ended with exit code 0 [2022-11-20 11:03:34,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:34,192 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1944904402, now seen corresponding path program 1 times [2022-11-20 11:03:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:03:34,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278059974] [2022-11-20 11:03:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:34,195 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 11:03:34,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:03:34,196 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:03:34,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:03:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:42,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 3825 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:03:42,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 552 proven. 28 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked. [2022-11-20 11:03:43,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:03:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 2 proven. 400 refuted. 0 times theorem prover too weak. 1396 trivial. 0 not checked. [2022-11-20 11:03:47,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:47,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278059974] [2022-11-20 11:03:47,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278059974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:03:47,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:03:47,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-20 11:03:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806777660] [2022-11-20 11:03:47,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:03:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:03:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:03:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:03:47,573 INFO L87 Difference]: Start difference. First operand 7172 states and 10856 transitions. Second operand has 23 states, 21 states have (on average 7.190476190476191) internal successors, (151), 23 states have internal predecessors, (151), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-20 11:04:00,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:04:00,461 INFO L93 Difference]: Finished difference Result 14372 states and 21791 transitions. [2022-11-20 11:04:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:04:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 7.190476190476191) internal successors, (151), 23 states have internal predecessors, (151), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 337 [2022-11-20 11:04:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:04:00,485 INFO L225 Difference]: With dead ends: 14372 [2022-11-20 11:04:00,485 INFO L226 Difference]: Without dead ends: 7200 [2022-11-20 11:04:00,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:04:00,504 INFO L413 NwaCegarLoop]: 5662 mSDtfsCounter, 81 mSDsluCounter, 67783 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 73445 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:04:00,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 73445 Invalid, 1496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [105 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-20 11:04:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2022-11-20 11:04:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7176. [2022-11-20 11:04:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7176 states, 5485 states have (on average 1.4818596171376481) internal successors, (8128), 5660 states have internal predecessors, (8128), 1365 states have call successors, (1365), 326 states have call predecessors, (1365), 325 states have return successors, (1369), 1307 states have call predecessors, (1369), 1355 states have call successors, (1369) [2022-11-20 11:04:01,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7176 states to 7176 states and 10862 transitions. [2022-11-20 11:04:01,002 INFO L78 Accepts]: Start accepts. Automaton has 7176 states and 10862 transitions. Word has length 337 [2022-11-20 11:04:01,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:04:01,003 INFO L495 AbstractCegarLoop]: Abstraction has 7176 states and 10862 transitions. [2022-11-20 11:04:01,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 7.190476190476191) internal successors, (151), 23 states have internal predecessors, (151), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-20 11:04:01,003 INFO L276 IsEmpty]: Start isEmpty. Operand 7176 states and 10862 transitions. [2022-11-20 11:04:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-11-20 11:04:01,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:04:01,024 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2022-11-20 11:04:01,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:04:01,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:01,248 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:04:01,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1043485273, now seen corresponding path program 1 times [2022-11-20 11:04:01,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:04:01,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348503130] [2022-11-20 11:04:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:01,254 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 11:04:01,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:04:01,255 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:01,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:04:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:17,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 3879 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:04:17,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:04:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2058 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1886 trivial. 0 not checked. [2022-11-20 11:04:18,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:04:18,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:04:18,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348503130] [2022-11-20 11:04:18,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348503130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:18,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:18,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:04:18,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656858160] [2022-11-20 11:04:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:18,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:04:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:04:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:04:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:04:18,208 INFO L87 Difference]: Start difference. First operand 7176 states and 10862 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:04:19,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:04:19,330 INFO L93 Difference]: Finished difference Result 14345 states and 21709 transitions. [2022-11-20 11:04:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:04:19,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 341 [2022-11-20 11:04:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:04:19,356 INFO L225 Difference]: With dead ends: 14345 [2022-11-20 11:04:19,356 INFO L226 Difference]: Without dead ends: 7180 [2022-11-20 11:04:19,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 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 11:04:19,373 INFO L413 NwaCegarLoop]: 5686 mSDtfsCounter, 23 mSDsluCounter, 22738 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28424 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:04:19,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28424 Invalid, 27 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:04:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7180 states. [2022-11-20 11:04:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7180 to 7169. [2022-11-20 11:04:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 5482 states have (on average 1.4813936519518425) internal successors, (8121), 5655 states have internal predecessors, (8121), 1363 states have call successors, (1363), 324 states have call predecessors, (1363), 323 states have return successors, (1367), 1304 states have call predecessors, (1367), 1353 states have call successors, (1367) [2022-11-20 11:04:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10851 transitions. [2022-11-20 11:04:19,864 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10851 transitions. Word has length 341 [2022-11-20 11:04:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:04:19,865 INFO L495 AbstractCegarLoop]: Abstraction has 7169 states and 10851 transitions. [2022-11-20 11:04:19,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:04:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10851 transitions. [2022-11-20 11:04:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-11-20 11:04:19,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:04:19,888 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2022-11-20 11:04:19,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:04:20,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:20,113 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:04:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash 976806038, now seen corresponding path program 1 times [2022-11-20 11:04:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:04:20,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532080718] [2022-11-20 11:04:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:20,118 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 11:04:20,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:04:20,120 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:20,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:04:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:37,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 3893 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:04:37,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:04:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2022-11-20 11:04:37,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:04:37,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:04:37,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532080718] [2022-11-20 11:04:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532080718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:37,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:37,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:04:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158939584] [2022-11-20 11:04:37,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:37,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:04:37,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:04:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:04:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:04:37,200 INFO L87 Difference]: Start difference. First operand 7169 states and 10851 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:04:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:04:39,133 INFO L93 Difference]: Finished difference Result 14525 states and 22001 transitions. [2022-11-20 11:04:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:04:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 347 [2022-11-20 11:04:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:04:39,157 INFO L225 Difference]: With dead ends: 14525 [2022-11-20 11:04:39,157 INFO L226 Difference]: Without dead ends: 7385 [2022-11-20 11:04:39,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:04:39,173 INFO L413 NwaCegarLoop]: 6029 mSDtfsCounter, 3443 mSDsluCounter, 8015 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3443 SdHoareTripleChecker+Valid, 14044 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:04:39,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3443 Valid, 14044 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [598 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:04:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7385 states. [2022-11-20 11:04:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7385 to 7169. [2022-11-20 11:04:39,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 5482 states have (on average 1.4806639912440716) internal successors, (8117), 5655 states have internal predecessors, (8117), 1363 states have call successors, (1363), 324 states have call predecessors, (1363), 323 states have return successors, (1367), 1304 states have call predecessors, (1367), 1353 states have call successors, (1367) [2022-11-20 11:04:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 10847 transitions. [2022-11-20 11:04:39,764 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 10847 transitions. Word has length 347 [2022-11-20 11:04:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:04:39,765 INFO L495 AbstractCegarLoop]: Abstraction has 7169 states and 10847 transitions. [2022-11-20 11:04:39,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:04:39,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 10847 transitions. [2022-11-20 11:04:39,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-20 11:04:39,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:04:39,785 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2022-11-20 11:04:39,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:04:40,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:40,008 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:04:40,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:40,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1519220190, now seen corresponding path program 1 times [2022-11-20 11:04:40,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:04:40,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097757765] [2022-11-20 11:04:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:40,014 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 11:04:40,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:04:40,015 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:40,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:04:56,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:04:56,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:04:56,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2022-11-20 11:04:56,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:04:56,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:04:56,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097757765] [2022-11-20 11:04:56,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097757765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:04:56,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:04:56,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:04:56,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579857417] [2022-11-20 11:04:56,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:04:56,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:04:56,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:04:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:04:56,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:04:56,597 INFO L87 Difference]: Start difference. First operand 7169 states and 10847 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:04:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:04:57,132 INFO L93 Difference]: Finished difference Result 14337 states and 21692 transitions. [2022-11-20 11:04:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:04:57,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 350 [2022-11-20 11:04:57,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:04:57,161 INFO L225 Difference]: With dead ends: 14337 [2022-11-20 11:04:57,161 INFO L226 Difference]: Without dead ends: 7197 [2022-11-20 11:04:57,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:04:57,176 INFO L413 NwaCegarLoop]: 5685 mSDtfsCounter, 8 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11367 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 11:04:57,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11367 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:04:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2022-11-20 11:04:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 7173. [2022-11-20 11:04:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 5486 states have (on average 1.480313525337222) internal successors, (8121), 5659 states have internal predecessors, (8121), 1363 states have call successors, (1363), 324 states have call predecessors, (1363), 323 states have return successors, (1367), 1304 states have call predecessors, (1367), 1353 states have call successors, (1367) [2022-11-20 11:04:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10851 transitions. [2022-11-20 11:04:57,697 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10851 transitions. Word has length 350 [2022-11-20 11:04:57,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:04:57,698 INFO L495 AbstractCegarLoop]: Abstraction has 7173 states and 10851 transitions. [2022-11-20 11:04:57,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:04:57,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10851 transitions. [2022-11-20 11:04:57,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-20 11:04:57,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:04:57,716 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2022-11-20 11:04:57,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:57,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:57,940 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:04:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:04:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1359762967, now seen corresponding path program 1 times [2022-11-20 11:04:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:04:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142367704] [2022-11-20 11:04:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:04:57,944 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 11:04:57,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:04:57,945 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:04:57,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:05:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:05:14,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 3902 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:05:14,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:05:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2062 backedges. 172 proven. 1 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2022-11-20 11:05:14,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:05:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2062 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2055 trivial. 0 not checked. [2022-11-20 11:05:15,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:05:15,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142367704] [2022-11-20 11:05:15,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142367704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:05:15,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:05:15,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 11:05:15,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350623739] [2022-11-20 11:05:15,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:05:15,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:05:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:05:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:05:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:05:15,031 INFO L87 Difference]: Start difference. First operand 7173 states and 10851 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 11:05:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:05:15,568 INFO L93 Difference]: Finished difference Result 14369 states and 21732 transitions. [2022-11-20 11:05:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:05:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 354 [2022-11-20 11:05:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:05:15,598 INFO L225 Difference]: With dead ends: 14369 [2022-11-20 11:05:15,598 INFO L226 Difference]: Without dead ends: 7225 [2022-11-20 11:05:15,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:05:15,620 INFO L413 NwaCegarLoop]: 5690 mSDtfsCounter, 36 mSDsluCounter, 11369 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 17059 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:05:15,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 17059 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:05:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7225 states. [2022-11-20 11:05:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7225 to 7201. [2022-11-20 11:05:16,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7201 states, 5514 states have (on average 1.4793253536452666) internal successors, (8157), 5687 states have internal predecessors, (8157), 1363 states have call successors, (1363), 324 states have call predecessors, (1363), 323 states have return successors, (1367), 1304 states have call predecessors, (1367), 1353 states have call successors, (1367) [2022-11-20 11:05:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7201 states to 7201 states and 10887 transitions. [2022-11-20 11:05:16,184 INFO L78 Accepts]: Start accepts. Automaton has 7201 states and 10887 transitions. Word has length 354 [2022-11-20 11:05:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:05:16,185 INFO L495 AbstractCegarLoop]: Abstraction has 7201 states and 10887 transitions. [2022-11-20 11:05:16,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 11:05:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7201 states and 10887 transitions. [2022-11-20 11:05:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-20 11:05:16,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:05:16,199 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:05:16,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:05:16,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:05:16,424 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:05:16,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:05:16,425 INFO L85 PathProgramCache]: Analyzing trace with hash -809398736, now seen corresponding path program 2 times [2022-11-20 11:05:16,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:05:16,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95137922] [2022-11-20 11:05:16,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:05:16,430 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 11:05:16,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:05:16,431 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 11:05:16,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (20)] Waiting until timeout for monitored process [2022-11-20 11:08:02,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:08:02,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:08:02,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 3907 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:02,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2022-11-20 11:08:05,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:05,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:05,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95137922] [2022-11-20 11:08:05,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95137922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:05,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:05,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:08:05,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904797835] [2022-11-20 11:08:05,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:05,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:05,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:05,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:05,351 INFO L87 Difference]: Start difference. First operand 7201 states and 10887 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:08:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:05,817 INFO L93 Difference]: Finished difference Result 14373 states and 21732 transitions. [2022-11-20 11:08:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:05,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 358 [2022-11-20 11:08:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:05,838 INFO L225 Difference]: With dead ends: 14373 [2022-11-20 11:08:05,838 INFO L226 Difference]: Without dead ends: 7201 [2022-11-20 11:08:05,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:05,850 INFO L413 NwaCegarLoop]: 5685 mSDtfsCounter, 5596 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5596 SdHoareTripleChecker+Valid, 5685 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 11:08:05,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5596 Valid, 5685 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:08:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7201 states. [2022-11-20 11:08:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7201 to 7201. [2022-11-20 11:08:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7201 states, 5514 states have (on average 1.4785999274573811) internal successors, (8153), 5687 states have internal predecessors, (8153), 1363 states have call successors, (1363), 324 states have call predecessors, (1363), 323 states have return successors, (1367), 1304 states have call predecessors, (1367), 1353 states have call successors, (1367) [2022-11-20 11:08:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7201 states to 7201 states and 10883 transitions. [2022-11-20 11:08:06,332 INFO L78 Accepts]: Start accepts. Automaton has 7201 states and 10883 transitions. Word has length 358 [2022-11-20 11:08:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:06,333 INFO L495 AbstractCegarLoop]: Abstraction has 7201 states and 10883 transitions. [2022-11-20 11:08:06,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:08:06,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7201 states and 10883 transitions. [2022-11-20 11:08:06,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-20 11:08:06,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:06,351 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:06,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:06,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:06,564 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:06,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 797027941, now seen corresponding path program 1 times [2022-11-20 11:08:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:06,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612930489] [2022-11-20 11:08:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:06,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:06,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:06,572 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:08:06,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (21)] Waiting until timeout for monitored process [2022-11-20 11:08:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:24,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 3906 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:24,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-11-20 11:08:24,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:24,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:24,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612930489] [2022-11-20 11:08:24,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612930489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:24,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:24,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:24,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782655739] [2022-11-20 11:08:24,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:24,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:24,746 INFO L87 Difference]: Start difference. First operand 7201 states and 10883 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 11:08:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:26,022 INFO L93 Difference]: Finished difference Result 17835 states and 26846 transitions. [2022-11-20 11:08:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 357 [2022-11-20 11:08:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:26,058 INFO L225 Difference]: With dead ends: 17835 [2022-11-20 11:08:26,058 INFO L226 Difference]: Without dead ends: 10663 [2022-11-20 11:08:26,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:26,079 INFO L413 NwaCegarLoop]: 7614 mSDtfsCounter, 3648 mSDsluCounter, 4864 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3648 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:26,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3648 Valid, 12478 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:08:26,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2022-11-20 11:08:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 10645. [2022-11-20 11:08:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10645 states, 8086 states have (on average 1.4661142715805096) internal successors, (11855), 8358 states have internal predecessors, (11855), 2047 states have call successors, (2047), 511 states have call predecessors, (2047), 511 states have return successors, (2063), 1950 states have call predecessors, (2063), 2037 states have call successors, (2063) [2022-11-20 11:08:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10645 states to 10645 states and 15965 transitions. [2022-11-20 11:08:26,869 INFO L78 Accepts]: Start accepts. Automaton has 10645 states and 15965 transitions. Word has length 357 [2022-11-20 11:08:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:26,869 INFO L495 AbstractCegarLoop]: Abstraction has 10645 states and 15965 transitions. [2022-11-20 11:08:26,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 11:08:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10645 states and 15965 transitions. [2022-11-20 11:08:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-20 11:08:26,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:26,885 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:26,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:27,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:27,086 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:27,086 INFO L85 PathProgramCache]: Analyzing trace with hash -670163025, now seen corresponding path program 1 times [2022-11-20 11:08:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:27,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547141108] [2022-11-20 11:08:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:27,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:27,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:27,093 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:08:27,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (22)] Waiting until timeout for monitored process [2022-11-20 11:08:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:44,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 3945 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:08:44,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-11-20 11:08:44,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:44,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:44,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547141108] [2022-11-20 11:08:44,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547141108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:44,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:44,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:08:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674620328] [2022-11-20 11:08:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:44,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:08:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:44,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:08:44,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:08:44,874 INFO L87 Difference]: Start difference. First operand 10645 states and 15965 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:08:47,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:47,480 INFO L93 Difference]: Finished difference Result 25231 states and 37802 transitions. [2022-11-20 11:08:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:08:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 373 [2022-11-20 11:08:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:47,529 INFO L225 Difference]: With dead ends: 25231 [2022-11-20 11:08:47,529 INFO L226 Difference]: Without dead ends: 14615 [2022-11-20 11:08:47,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:08:47,553 INFO L413 NwaCegarLoop]: 9292 mSDtfsCounter, 3922 mSDsluCounter, 14657 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 23949 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:47,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 23949 Invalid, 240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [151 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:08:47,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14615 states. [2022-11-20 11:08:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14615 to 10647. [2022-11-20 11:08:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10647 states, 8088 states have (on average 1.4658753709198813) internal successors, (11856), 8360 states have internal predecessors, (11856), 2047 states have call successors, (2047), 511 states have call predecessors, (2047), 511 states have return successors, (2063), 1950 states have call predecessors, (2063), 2037 states have call successors, (2063) [2022-11-20 11:08:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10647 states to 10647 states and 15966 transitions. [2022-11-20 11:08:48,422 INFO L78 Accepts]: Start accepts. Automaton has 10647 states and 15966 transitions. Word has length 373 [2022-11-20 11:08:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:48,422 INFO L495 AbstractCegarLoop]: Abstraction has 10647 states and 15966 transitions. [2022-11-20 11:08:48,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:08:48,423 INFO L276 IsEmpty]: Start isEmpty. Operand 10647 states and 15966 transitions. [2022-11-20 11:08:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-20 11:08:48,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:48,440 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:08:48,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:08:48,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:48,641 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:08:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1979073167, now seen corresponding path program 1 times [2022-11-20 11:08:48,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:48,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9379235] [2022-11-20 11:08:48,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:48,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:08:48,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:48,646 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:08:48,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (23)] Waiting until timeout for monitored process [2022-11-20 11:09:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:06,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 4003 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:09:06,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-11-20 11:09:06,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:06,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:06,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9379235] [2022-11-20 11:09:06,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9379235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:06,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:06,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:06,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852850926] [2022-11-20 11:09:06,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:06,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:06,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:06,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:06,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:06,277 INFO L87 Difference]: Start difference. First operand 10647 states and 15966 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:07,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:07,110 INFO L93 Difference]: Finished difference Result 21266 states and 31892 transitions. [2022-11-20 11:09:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:07,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 402 [2022-11-20 11:09:07,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:07,139 INFO L225 Difference]: With dead ends: 21266 [2022-11-20 11:09:07,139 INFO L226 Difference]: Without dead ends: 10648 [2022-11-20 11:09:07,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:07,157 INFO L413 NwaCegarLoop]: 5687 mSDtfsCounter, 0 mSDsluCounter, 5681 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11368 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:07,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11368 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:09:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10648 states. [2022-11-20 11:09:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10648 to 10648. [2022-11-20 11:09:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10648 states, 8089 states have (on average 1.4658177772283347) internal successors, (11857), 8361 states have internal predecessors, (11857), 2047 states have call successors, (2047), 511 states have call predecessors, (2047), 511 states have return successors, (2063), 1950 states have call predecessors, (2063), 2037 states have call successors, (2063) [2022-11-20 11:09:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10648 states to 10648 states and 15967 transitions. [2022-11-20 11:09:07,862 INFO L78 Accepts]: Start accepts. Automaton has 10648 states and 15967 transitions. Word has length 402 [2022-11-20 11:09:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:07,863 INFO L495 AbstractCegarLoop]: Abstraction has 10648 states and 15967 transitions. [2022-11-20 11:09:07,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 10648 states and 15967 transitions. [2022-11-20 11:09:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-20 11:09:07,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:07,882 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:07,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:09:08,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:08,083 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:08,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:08,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1337027670, now seen corresponding path program 1 times [2022-11-20 11:09:08,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:08,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331593084] [2022-11-20 11:09:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:08,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:08,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:08,087 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:09:08,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (24)] Waiting until timeout for monitored process [2022-11-20 11:09:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:25,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 4006 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:09:25,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2022-11-20 11:09:25,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:25,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:25,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331593084] [2022-11-20 11:09:25,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331593084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:25,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:25,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:25,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404875345] [2022-11-20 11:09:25,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:25,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:25,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:25,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:25,939 INFO L87 Difference]: Start difference. First operand 10648 states and 15967 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:27,272 INFO L93 Difference]: Finished difference Result 23531 states and 35460 transitions. [2022-11-20 11:09:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:27,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 404 [2022-11-20 11:09:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:27,410 INFO L225 Difference]: With dead ends: 23531 [2022-11-20 11:09:27,411 INFO L226 Difference]: Without dead ends: 12912 [2022-11-20 11:09:27,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:27,430 INFO L413 NwaCegarLoop]: 7067 mSDtfsCounter, 1666 mSDsluCounter, 5139 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 12206 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:27,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 12206 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:09:27,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2022-11-20 11:09:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 10654. [2022-11-20 11:09:28,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10654 states, 8095 states have (on average 1.4654725138974676) internal successors, (11863), 8367 states have internal predecessors, (11863), 2047 states have call successors, (2047), 511 states have call predecessors, (2047), 511 states have return successors, (2063), 1950 states have call predecessors, (2063), 2037 states have call successors, (2063) [2022-11-20 11:09:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10654 states to 10654 states and 15973 transitions. [2022-11-20 11:09:28,286 INFO L78 Accepts]: Start accepts. Automaton has 10654 states and 15973 transitions. Word has length 404 [2022-11-20 11:09:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:28,286 INFO L495 AbstractCegarLoop]: Abstraction has 10654 states and 15973 transitions. [2022-11-20 11:09:28,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 10654 states and 15973 transitions. [2022-11-20 11:09:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-20 11:09:28,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:28,302 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:28,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (24)] Ended with exit code 0 [2022-11-20 11:09:28,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:28,503 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:28,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash 183189230, now seen corresponding path program 1 times [2022-11-20 11:09:28,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:28,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556618627] [2022-11-20 11:09:28,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:28,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:28,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:28,508 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:09:28,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (25)] Waiting until timeout for monitored process [2022-11-20 11:09:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:09:46,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 4006 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:09:46,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:09:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2022-11-20 11:09:47,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:09:47,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:09:47,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556618627] [2022-11-20 11:09:47,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556618627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:09:47,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:09:47,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:09:47,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71487525] [2022-11-20 11:09:47,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:09:47,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:09:47,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:09:47,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:09:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:47,033 INFO L87 Difference]: Start difference. First operand 10654 states and 15973 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:09:48,485 INFO L93 Difference]: Finished difference Result 20300 states and 30451 transitions. [2022-11-20 11:09:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:09:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 404 [2022-11-20 11:09:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:09:48,513 INFO L225 Difference]: With dead ends: 20300 [2022-11-20 11:09:48,513 INFO L226 Difference]: Without dead ends: 9675 [2022-11-20 11:09:48,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:09:48,532 INFO L413 NwaCegarLoop]: 8503 mSDtfsCounter, 4832 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 12210 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:09:48,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4832 Valid, 12210 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:09:48,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2022-11-20 11:09:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 9657. [2022-11-20 11:09:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9657 states, 7319 states have (on average 1.462084984287471) internal successors, (10701), 7568 states have internal predecessors, (10701), 1881 states have call successors, (1881), 456 states have call predecessors, (1881), 456 states have return successors, (1897), 1791 states have call predecessors, (1897), 1871 states have call successors, (1897) [2022-11-20 11:09:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9657 states to 9657 states and 14479 transitions. [2022-11-20 11:09:49,448 INFO L78 Accepts]: Start accepts. Automaton has 9657 states and 14479 transitions. Word has length 404 [2022-11-20 11:09:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:09:49,448 INFO L495 AbstractCegarLoop]: Abstraction has 9657 states and 14479 transitions. [2022-11-20 11:09:49,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:09:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9657 states and 14479 transitions. [2022-11-20 11:09:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-20 11:09:49,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:09:49,467 INFO L195 NwaCegarLoop]: trace histogram [48, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:09:49,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:09:49,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:49,675 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:09:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:09:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1430857976, now seen corresponding path program 1 times [2022-11-20 11:09:49,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:09:49,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428254422] [2022-11-20 11:09:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:09:49,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:09:49,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:09:49,681 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:09:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/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 (26)] Waiting until timeout for monitored process [2022-11-20 11:10:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:10:56,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 3932 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-20 11:10:56,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:10:56,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:10:58,418 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ldv_init_zalloc_~p~2.base_BEFORE_CALL_1 (_ BitVec 64))) (= ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)) (select |c_#memory_int| v_ldv_init_zalloc_~p~2.base_BEFORE_CALL_1))) is different from true [2022-11-20 11:10:58,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-20 11:10:59,022 WARN L859 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| (_ BitVec 64))) (= |c_#memory_int| (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8))))) is different from true [2022-11-20 11:10:59,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-20 11:11:01,105 WARN L859 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| (_ BitVec 64))) (= ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)) (select |c_#memory_int| |#Ultimate.meminit_#ptr.base|))) is different from true [2022-11-20 11:11:01,187 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)))) (and (exists ((|#Ultimate.meminit_#ptr.base| (_ BitVec 64))) (= .cse0 (select |c_#memory_int| |#Ultimate.meminit_#ptr.base|))) (exists ((|#Ultimate.meminit_#ptr.base| (_ BitVec 64))) (= |c_#memory_int| (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| .cse0))))) is different from true [2022-11-20 11:11:01,344 INFO L321 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2022-11-20 11:11:01,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-20 11:11:03,735 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_sound_open_~inode#1.base_BEFORE_CALL_1| (_ BitVec 64))) (= (select |c_#memory_int| |v_ULTIMATE.start_sound_open_~inode#1.base_BEFORE_CALL_1|) ((as const (Array (_ BitVec 64) (_ BitVec 8))) (_ bv0 8)))) is different from true [2022-11-20 11:11:06,112 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-20 11:11:06,113 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2022-11-20 11:11:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 11 not checked. [2022-11-20 11:11:07,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:11:10,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:11:10,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428254422] [2022-11-20 11:11:10,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428254422] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:11:10,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1782125766] [2022-11-20 11:11:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:10,323 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 11:11:10,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 11:11:10,325 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 11:11:10,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30f12f31-f414-488d-b82c-fb0f28c2a715/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process