./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 --- 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-5e519f3 [2022-11-03 02:27:43,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:27:43,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:27:43,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:27:43,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:27:43,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:27:43,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:27:43,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:27:43,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:27:43,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:27:43,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:27:43,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:27:43,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:27:43,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:27:43,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:27:43,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:27:43,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:27:43,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:27:43,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:27:43,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:27:43,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:27:43,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:27:43,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:27:43,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:27:43,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:27:43,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:27:43,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:27:43,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:27:43,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:27:43,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:27:43,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:27:43,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:27:43,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:27:43,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:27:43,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:27:43,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:27:43,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:27:43,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:27:43,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:27:43,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:27:43,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:27:43,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:27:43,665 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:27:43,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:27:43,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:27:43,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:27:43,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:27:43,667 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:27:43,668 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:27:43,668 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:27:43,668 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:27:43,668 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:27:43,670 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:27:43,670 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:27:43,670 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:27:43,670 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:27:43,671 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:27:43,671 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:27:43,671 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:27:43,671 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:27:43,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:27:43,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:27:43,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:27:43,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:27:43,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:27:43,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:27:43,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:27:43,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:27:43,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:27:43,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:27:43,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:27:43,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:27:43,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:27:43,677 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:27:43,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:27:43,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:27:43,678 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:27:43,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:27:43,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:27:43,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:27:43,678 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2022-11-03 02:27:44,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:27:44,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:27:44,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:27:44,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:27:44,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:27:44,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-03 02:27:44,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/data/e82143879/e4e121fc48d643c1bd7f02c14e503cff/FLAG2023281bd [2022-11-03 02:27:45,316 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:27:45,317 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-03 02:27:45,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/data/e82143879/e4e121fc48d643c1bd7f02c14e503cff/FLAG2023281bd [2022-11-03 02:27:45,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/data/e82143879/e4e121fc48d643c1bd7f02c14e503cff [2022-11-03 02:27:45,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:27:45,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:27:45,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:27:45,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:27:45,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:27:45,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:45" (1/1) ... [2022-11-03 02:27:45,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31acbb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:45, skipping insertion in model container [2022-11-03 02:27:45,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:27:45" (1/1) ... [2022-11-03 02:27:45,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:27:45,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:27:51,333 WARN L230 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2022-11-03 02:27:51,336 WARN L230 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2022-11-03 02:27:51,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:27:51,475 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:27:52,354 WARN L230 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2022-11-03 02:27:52,354 WARN L230 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_9ffb0c7a-8002-4109-bb20-0d1b4742165d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2022-11-03 02:27:52,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:27:52,582 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:27:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52 WrapperNode [2022-11-03 02:27:52,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:27:52,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:27:52,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:27:52,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:27:52,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:52,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:52,978 INFO L138 Inliner]: procedures = 538, calls = 4280, calls flagged for inlining = 263, calls inlined = 250, statements flattened = 8540 [2022-11-03 02:27:52,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:27:52,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:27:52,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:27:52,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:27:52,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:52,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:27:53,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:27:53,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:27:53,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:27:53,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (1/1) ... [2022-11-03 02:27:53,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:27:53,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:27:53,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:27:53,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:27:53,751 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-03 02:27:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-03 02:27:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:27:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:27:53,752 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-03 02:27:53,752 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-03 02:27:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-03 02:27:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-03 02:27:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-03 02:27:53,753 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-03 02:27:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:27:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:27:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-03 02:27:53,754 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-03 02:27:53,754 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-03 02:27:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-03 02:27:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-03 02:27:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-03 02:27:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:27:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:27:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-03 02:27:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-03 02:27:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-03 02:27:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-03 02:27:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-03 02:27:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-03 02:27:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-03 02:27:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-03 02:27:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-03 02:27:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-03 02:27:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 02:27:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 02:27:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-03 02:27:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-03 02:27:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-03 02:27:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-03 02:27:53,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 02:27:53,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 02:27:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-03 02:27:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-03 02:27:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-03 02:27:53,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-03 02:27:53,760 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-03 02:27:53,761 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-03 02:27:53,761 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-03 02:27:53,762 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-03 02:27:53,762 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-03 02:27:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-03 02:27:53,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:27:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:27:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:27:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:27:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:27:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:27:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-03 02:27:53,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-03 02:27:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-03 02:27:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-03 02:27:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:27:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:27:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-03 02:27:53,766 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-03 02:27:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-03 02:27:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-03 02:27:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-03 02:27:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-03 02:27:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-03 02:27:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-03 02:27:53,768 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 02:27:53,768 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 02:27:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-03 02:27:53,769 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-03 02:27:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:27:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-03 02:27:53,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-03 02:27:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-03 02:27:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-03 02:27:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2022-11-03 02:27:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2022-11-03 02:27:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:27:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:27:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-03 02:27:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-03 02:27:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-03 02:27:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-03 02:27:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-03 02:27:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:27:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-03 02:27:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-03 02:27:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:27:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:27:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-03 02:27:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-03 02:27:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:27:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-03 02:27:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-03 02:27:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:27:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:27:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-03 02:27:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-03 02:27:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-03 02:27:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-03 02:27:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:27:53,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:27:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-03 02:27:53,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-03 02:27:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:27:53,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:27:53,779 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-03 02:27:53,782 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-03 02:27:53,782 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-03 02:27:53,782 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-03 02:27:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:27:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:27:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-03 02:27:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-03 02:27:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:27:53,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:27:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-03 02:27:53,792 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-03 02:27:53,792 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-03 02:27:53,792 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-03 02:27:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-03 02:27:53,793 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-03 02:27:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:27:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:27:53,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:27:53,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:27:53,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:27:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:27:53,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:27:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:27:53,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:27:53,794 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-03 02:27:53,795 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-03 02:27:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:27:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:27:53,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:27:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:27:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-03 02:27:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-03 02:27:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:27:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:27:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:27:53,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:27:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-03 02:27:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-03 02:27:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:27:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:27:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:27:53,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:27:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-03 02:27:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-03 02:27:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-03 02:27:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-03 02:27:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:27:53,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:27:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-03 02:27:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-03 02:27:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:27:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:27:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-03 02:27:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-03 02:27:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-03 02:27:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-03 02:27:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-03 02:27:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-03 02:27:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-03 02:27:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-03 02:27:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-03 02:27:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-03 02:27:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-03 02:27:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-03 02:27:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-03 02:27:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-03 02:27:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-03 02:27:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-03 02:27:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 02:27:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 02:27:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:27:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:27:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-03 02:27:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-03 02:27:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:27:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:27:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-03 02:27:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-03 02:27:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 02:27:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 02:27:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 02:27:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 02:27:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:27:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:27:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-03 02:27:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-03 02:27:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-03 02:27:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-03 02:27:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-03 02:27:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-03 02:27:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-03 02:27:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-03 02:27:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-03 02:27:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-03 02:27:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:27:53,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:27:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-03 02:27:53,808 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-03 02:27:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:27:53,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:27:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-03 02:27:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-03 02:27:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-03 02:27:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-03 02:27:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-03 02:27:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-03 02:27:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-03 02:27:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-03 02:27:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-03 02:27:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-03 02:27:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 02:27:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 02:27:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 02:27:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 02:27:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure video_poll [2022-11-03 02:27:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure video_poll [2022-11-03 02:27:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:27:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:27:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:27:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:27:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-03 02:27:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-03 02:27:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-03 02:27:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-03 02:27:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_100 [2022-11-03 02:27:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_100 [2022-11-03 02:27:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-03 02:27:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-03 02:27:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-03 02:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-03 02:27:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:27:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-03 02:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-03 02:27:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:27:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-03 02:27:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-03 02:27:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:27:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:27:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:27:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:27:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-03 02:27:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-03 02:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:27:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-03 02:27:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-03 02:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-03 02:27:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-03 02:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:27:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:27:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2022-11-03 02:27:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2022-11-03 02:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-03 02:27:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-03 02:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 02:27:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 02:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-03 02:27:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-03 02:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:27:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-03 02:27:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-03 02:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-03 02:27:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-03 02:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-03 02:27:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-03 02:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:27:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:27:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:27:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-03 02:27:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-03 02:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:27:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:27:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-03 02:27:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-03 02:27:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-03 02:27:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-03 02:27:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:27:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:27:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:27:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:27:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-03 02:27:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-03 02:27:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:27:53,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-03 02:27:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-03 02:27:53,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:27:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:27:55,283 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:27:55,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:27:55,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:28:23,550 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:28:23,775 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:28:25,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:28:25,849 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:28:25,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:28:25 BoogieIcfgContainer [2022-11-03 02:28:25,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:28:25,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:28:25,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:28:25,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:28:25,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:27:45" (1/3) ... [2022-11-03 02:28:25,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac755b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:28:25, skipping insertion in model container [2022-11-03 02:28:25,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:27:52" (2/3) ... [2022-11-03 02:28:25,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac755b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:28:25, skipping insertion in model container [2022-11-03 02:28:25,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:28:25" (3/3) ... [2022-11-03 02:28:25,868 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-03 02:28:25,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:28:25,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:28:26,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:28:26,016 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@176f8e4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:28:26,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:28:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 2236 states, 1320 states have (on average 1.2992424242424243) internal successors, (1715), 1334 states have internal predecessors, (1715), 769 states have call successors, (769), 147 states have call predecessors, (769), 146 states have return successors, (762), 761 states have call predecessors, (762), 762 states have call successors, (762) [2022-11-03 02:28:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-11-03 02:28:26,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:26,087 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:26,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:26,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 873645182, now seen corresponding path program 1 times [2022-11-03 02:28:26,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:26,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484144993] [2022-11-03 02:28:26,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:26,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-03 02:28:28,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:28,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484144993] [2022-11-03 02:28:28,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484144993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:28,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:28,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:28,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350728847] [2022-11-03 02:28:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:28,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:28,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:28,289 INFO L87 Difference]: Start difference. First operand has 2236 states, 1320 states have (on average 1.2992424242424243) internal successors, (1715), 1334 states have internal predecessors, (1715), 769 states have call successors, (769), 147 states have call predecessors, (769), 146 states have return successors, (762), 761 states have call predecessors, (762), 762 states have call successors, (762) Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 02:28:31,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:28:35,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:35,442 INFO L93 Difference]: Finished difference Result 6319 states and 9201 transitions. [2022-11-03 02:28:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 523 [2022-11-03 02:28:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:35,498 INFO L225 Difference]: With dead ends: 6319 [2022-11-03 02:28:35,498 INFO L226 Difference]: Without dead ends: 4118 [2022-11-03 02:28:35,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:35,519 INFO L413 NwaCegarLoop]: 3422 mSDtfsCounter, 2774 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:35,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 6134 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 995 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-03 02:28:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2022-11-03 02:28:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 4114. [2022-11-03 02:28:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4114 states, 2470 states have (on average 1.291497975708502) internal successors, (3190), 2498 states have internal predecessors, (3190), 1355 states have call successors, (1355), 288 states have call predecessors, (1355), 288 states have return successors, (1357), 1351 states have call predecessors, (1357), 1355 states have call successors, (1357) [2022-11-03 02:28:35,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4114 states to 4114 states and 5902 transitions. [2022-11-03 02:28:35,847 INFO L78 Accepts]: Start accepts. Automaton has 4114 states and 5902 transitions. Word has length 523 [2022-11-03 02:28:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:35,852 INFO L495 AbstractCegarLoop]: Abstraction has 4114 states and 5902 transitions. [2022-11-03 02:28:35,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 02:28:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4114 states and 5902 transitions. [2022-11-03 02:28:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-11-03 02:28:35,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:35,876 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:35,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:28:35,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1003587758, now seen corresponding path program 1 times [2022-11-03 02:28:35,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:35,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190471167] [2022-11-03 02:28:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-03 02:28:37,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190471167] [2022-11-03 02:28:37,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190471167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:37,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:37,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551994878] [2022-11-03 02:28:37,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:37,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:37,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:37,172 INFO L87 Difference]: Start difference. First operand 4114 states and 5902 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:28:41,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:41,390 INFO L93 Difference]: Finished difference Result 11836 states and 16964 transitions. [2022-11-03 02:28:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 528 [2022-11-03 02:28:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:41,446 INFO L225 Difference]: With dead ends: 11836 [2022-11-03 02:28:41,446 INFO L226 Difference]: Without dead ends: 7821 [2022-11-03 02:28:41,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:41,469 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2767 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:41,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2767 Valid, 6109 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-03 02:28:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-11-03 02:28:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7817. [2022-11-03 02:28:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7817 states, 4727 states have (on average 1.294478527607362) internal successors, (6119), 4781 states have internal predecessors, (6119), 2527 states have call successors, (2527), 562 states have call predecessors, (2527), 562 states have return successors, (2531), 2517 states have call predecessors, (2531), 2527 states have call successors, (2531) [2022-11-03 02:28:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 11177 transitions. [2022-11-03 02:28:41,893 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 11177 transitions. Word has length 528 [2022-11-03 02:28:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:41,895 INFO L495 AbstractCegarLoop]: Abstraction has 7817 states and 11177 transitions. [2022-11-03 02:28:41,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 02:28:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 11177 transitions. [2022-11-03 02:28:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-11-03 02:28:41,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:41,914 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:41,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:28:41,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:41,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:41,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1416517290, now seen corresponding path program 1 times [2022-11-03 02:28:41,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:41,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143192965] [2022-11-03 02:28:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:41,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 9609 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9606 trivial. 0 not checked. [2022-11-03 02:28:42,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:42,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143192965] [2022-11-03 02:28:42,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143192965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:42,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:42,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:42,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905160265] [2022-11-03 02:28:42,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:42,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:42,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:42,895 INFO L87 Difference]: Start difference. First operand 7817 states and 11177 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-03 02:28:48,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:28:49,243 INFO L93 Difference]: Finished difference Result 17313 states and 24689 transitions. [2022-11-03 02:28:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:28:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 542 [2022-11-03 02:28:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:28:49,314 INFO L225 Difference]: With dead ends: 17313 [2022-11-03 02:28:49,315 INFO L226 Difference]: Without dead ends: 9595 [2022-11-03 02:28:49,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:49,354 INFO L413 NwaCegarLoop]: 3343 mSDtfsCounter, 2450 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:28:49,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 6015 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 962 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 02:28:49,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9595 states. [2022-11-03 02:28:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9595 to 9589. [2022-11-03 02:28:49,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 5813 states have (on average 1.2922759332530536) internal successors, (7512), 5880 states have internal predecessors, (7512), 3065 states have call successors, (3065), 710 states have call predecessors, (3065), 710 states have return successors, (3069), 3052 states have call predecessors, (3069), 3065 states have call successors, (3069) [2022-11-03 02:28:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 13646 transitions. [2022-11-03 02:28:49,915 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 13646 transitions. Word has length 542 [2022-11-03 02:28:49,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:28:49,917 INFO L495 AbstractCegarLoop]: Abstraction has 9589 states and 13646 transitions. [2022-11-03 02:28:49,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-03 02:28:49,918 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 13646 transitions. [2022-11-03 02:28:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-11-03 02:28:49,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:28:49,935 INFO L195 NwaCegarLoop]: trace histogram [52, 51, 51, 51, 51, 51, 51, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:49,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:28:49,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:28:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:28:49,938 INFO L85 PathProgramCache]: Analyzing trace with hash -160552341, now seen corresponding path program 1 times [2022-11-03 02:28:49,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:28:49,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674550214] [2022-11-03 02:28:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:28:49,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:28:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:28:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 10306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10306 trivial. 0 not checked. [2022-11-03 02:28:50,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674550214] [2022-11-03 02:28:50,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674550214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:28:50,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:28:50,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:28:50,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11056338] [2022-11-03 02:28:50,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:28:50,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:28:50,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:50,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:28:50,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:28:50,950 INFO L87 Difference]: Start difference. First operand 9589 states and 13646 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 02:28:53,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:28:55,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:00,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:00,013 INFO L93 Difference]: Finished difference Result 25499 states and 36226 transitions. [2022-11-03 02:29:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 557 [2022-11-03 02:29:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:00,141 INFO L225 Difference]: With dead ends: 25499 [2022-11-03 02:29:00,142 INFO L226 Difference]: Without dead ends: 16009 [2022-11-03 02:29:00,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:00,193 INFO L413 NwaCegarLoop]: 3911 mSDtfsCounter, 2709 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 6565 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:00,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 6565 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1144 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-03 02:29:00,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16009 states. [2022-11-03 02:29:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16009 to 15998. [2022-11-03 02:29:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15998 states, 9714 states have (on average 1.2858760551780934) internal successors, (12491), 9845 states have internal predecessors, (12491), 5085 states have call successors, (5085), 1198 states have call predecessors, (5085), 1198 states have return successors, (5092), 5052 states have call predecessors, (5092), 5085 states have call successors, (5092) [2022-11-03 02:29:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15998 states to 15998 states and 22668 transitions. [2022-11-03 02:29:01,279 INFO L78 Accepts]: Start accepts. Automaton has 15998 states and 22668 transitions. Word has length 557 [2022-11-03 02:29:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:01,280 INFO L495 AbstractCegarLoop]: Abstraction has 15998 states and 22668 transitions. [2022-11-03 02:29:01,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-03 02:29:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15998 states and 22668 transitions. [2022-11-03 02:29:01,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2022-11-03 02:29:01,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:01,297 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:01,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:29:01,298 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:01,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1316392891, now seen corresponding path program 1 times [2022-11-03 02:29:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:01,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308382779] [2022-11-03 02:29:01,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 9845 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9842 trivial. 0 not checked. [2022-11-03 02:29:02,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:02,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308382779] [2022-11-03 02:29:02,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308382779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:02,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:02,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986841758] [2022-11-03 02:29:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:02,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:02,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:02,478 INFO L87 Difference]: Start difference. First operand 15998 states and 22668 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-03 02:29:06,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:09,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:13,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:13,272 INFO L93 Difference]: Finished difference Result 35668 states and 50617 transitions. [2022-11-03 02:29:13,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:13,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 579 [2022-11-03 02:29:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:13,402 INFO L225 Difference]: With dead ends: 35668 [2022-11-03 02:29:13,402 INFO L226 Difference]: Without dead ends: 22152 [2022-11-03 02:29:13,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:13,465 INFO L413 NwaCegarLoop]: 4001 mSDtfsCounter, 2753 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 6669 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:13,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 6669 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1108 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 02:29:13,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22152 states. [2022-11-03 02:29:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22152 to 22141. [2022-11-03 02:29:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22141 states, 13460 states have (on average 1.287221396731055) internal successors, (17326), 13646 states have internal predecessors, (17326), 7013 states have call successors, (7013), 1667 states have call predecessors, (7013), 1667 states have return successors, (7030), 6960 states have call predecessors, (7030), 7013 states have call successors, (7030) [2022-11-03 02:29:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22141 states to 22141 states and 31369 transitions. [2022-11-03 02:29:15,242 INFO L78 Accepts]: Start accepts. Automaton has 22141 states and 31369 transitions. Word has length 579 [2022-11-03 02:29:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:15,243 INFO L495 AbstractCegarLoop]: Abstraction has 22141 states and 31369 transitions. [2022-11-03 02:29:15,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-03 02:29:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 22141 states and 31369 transitions. [2022-11-03 02:29:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2022-11-03 02:29:15,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:15,262 INFO L195 NwaCegarLoop]: trace histogram [54, 49, 49, 49, 49, 49, 49, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:15,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:29:15,263 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 579828226, now seen corresponding path program 1 times [2022-11-03 02:29:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:15,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701945409] [2022-11-03 02:29:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:15,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 9941 trivial. 0 not checked. [2022-11-03 02:29:17,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:17,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701945409] [2022-11-03 02:29:17,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701945409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:29:17,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766761523] [2022-11-03 02:29:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:17,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:17,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:17,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:17,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:29:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:19,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 9295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:29:19,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 9841 trivial. 0 not checked. [2022-11-03 02:29:19,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:29:19,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766761523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:19,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:29:19,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 02:29:19,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106674406] [2022-11-03 02:29:19,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:19,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:19,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:19,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:19,931 INFO L87 Difference]: Start difference. First operand 22141 states and 31369 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:29:23,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:27,322 INFO L93 Difference]: Finished difference Result 51338 states and 72756 transitions. [2022-11-03 02:29:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 588 [2022-11-03 02:29:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:27,488 INFO L225 Difference]: With dead ends: 51338 [2022-11-03 02:29:27,489 INFO L226 Difference]: Without dead ends: 31679 [2022-11-03 02:29:27,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:29:27,560 INFO L413 NwaCegarLoop]: 3538 mSDtfsCounter, 2903 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:27,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 6064 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1033 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:29:27,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31679 states. [2022-11-03 02:29:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31679 to 31671. [2022-11-03 02:29:29,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31671 states, 19328 states have (on average 1.290925082781457) internal successors, (24951), 19597 states have internal predecessors, (24951), 9926 states have call successors, (9926), 2416 states have call predecessors, (9926), 2416 states have return successors, (9945), 9848 states have call predecessors, (9945), 9926 states have call successors, (9945) [2022-11-03 02:29:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31671 states to 31671 states and 44822 transitions. [2022-11-03 02:29:29,645 INFO L78 Accepts]: Start accepts. Automaton has 31671 states and 44822 transitions. Word has length 588 [2022-11-03 02:29:29,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:29,647 INFO L495 AbstractCegarLoop]: Abstraction has 31671 states and 44822 transitions. [2022-11-03 02:29:29,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-03 02:29:29,647 INFO L276 IsEmpty]: Start isEmpty. Operand 31671 states and 44822 transitions. [2022-11-03 02:29:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-11-03 02:29:29,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:29,671 INFO L195 NwaCegarLoop]: trace histogram [53, 51, 51, 51, 51, 51, 51, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:29,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:29,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:29:29,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:29,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:29,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1395043930, now seen corresponding path program 1 times [2022-11-03 02:29:29,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:29,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945181234] [2022-11-03 02:29:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:29,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:30,157 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:30,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207946600] [2022-11-03 02:29:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:30,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:30,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:30,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:30,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:29:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:33,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 9352 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:29:33,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10447 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 9459 trivial. 0 not checked. [2022-11-03 02:29:33,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:29:33,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:33,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945181234] [2022-11-03 02:29:33,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:29:33,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207946600] [2022-11-03 02:29:33,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207946600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:33,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:33,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:33,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407830513] [2022-11-03 02:29:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:33,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:33,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:33,362 INFO L87 Difference]: Start difference. First operand 31671 states and 44822 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:29:35,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:29:38,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:29:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:45,569 INFO L93 Difference]: Finished difference Result 76921 states and 108905 transitions. [2022-11-03 02:29:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:29:45,570 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), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 617 [2022-11-03 02:29:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:46,007 INFO L225 Difference]: With dead ends: 76921 [2022-11-03 02:29:46,007 INFO L226 Difference]: Without dead ends: 45349 [2022-11-03 02:29:46,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:46,111 INFO L413 NwaCegarLoop]: 4079 mSDtfsCounter, 2790 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 6653 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:46,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 6653 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-11-03 02:29:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45349 states. [2022-11-03 02:29:47,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45349 to 45325. [2022-11-03 02:29:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45325 states, 27769 states have (on average 1.2942129712989305) internal successors, (35939), 28168 states have internal predecessors, (35939), 14068 states have call successors, (14068), 3484 states have call predecessors, (14068), 3487 states have return successors, (14108), 13951 states have call predecessors, (14108), 14068 states have call successors, (14108) [2022-11-03 02:29:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45325 states to 45325 states and 64115 transitions. [2022-11-03 02:29:48,200 INFO L78 Accepts]: Start accepts. Automaton has 45325 states and 64115 transitions. Word has length 617 [2022-11-03 02:29:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:48,202 INFO L495 AbstractCegarLoop]: Abstraction has 45325 states and 64115 transitions. [2022-11-03 02:29:48,202 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), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:29:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 45325 states and 64115 transitions. [2022-11-03 02:29:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-03 02:29:48,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:48,232 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:48,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:48,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:48,447 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:48,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:48,448 INFO L85 PathProgramCache]: Analyzing trace with hash -236116605, now seen corresponding path program 1 times [2022-11-03 02:29:48,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:48,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286205777] [2022-11-03 02:29:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:48,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:49,132 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:49,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177525813] [2022-11-03 02:29:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:49,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:49,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:29:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:51,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 9511 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:29:51,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 9643 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 9437 trivial. 0 not checked. [2022-11-03 02:29:52,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:29:52,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:52,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286205777] [2022-11-03 02:29:52,022 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:29:52,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177525813] [2022-11-03 02:29:52,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177525813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:29:52,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:29:52,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:29:52,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346705600] [2022-11-03 02:29:52,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:29:52,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:29:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:29:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:29:52,025 INFO L87 Difference]: Start difference. First operand 45325 states and 64115 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-03 02:29:55,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:30:01,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:01,144 INFO L93 Difference]: Finished difference Result 133489 states and 188504 transitions. [2022-11-03 02:30:01,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:01,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 611 [2022-11-03 02:30:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:01,785 INFO L225 Difference]: With dead ends: 133489 [2022-11-03 02:30:01,785 INFO L226 Difference]: Without dead ends: 88263 [2022-11-03 02:30:01,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:01,911 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 3092 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:01,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 5881 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 932 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-03 02:30:02,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88263 states. [2022-11-03 02:30:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88263 to 88172. [2022-11-03 02:30:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88172 states, 54019 states have (on average 1.2924896795571927) internal successors, (69819), 54850 states have internal predecessors, (69819), 27229 states have call successors, (27229), 6917 states have call predecessors, (27229), 6923 states have return successors, (27309), 26962 states have call predecessors, (27309), 27229 states have call successors, (27309) [2022-11-03 02:30:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88172 states to 88172 states and 124357 transitions. [2022-11-03 02:30:06,951 INFO L78 Accepts]: Start accepts. Automaton has 88172 states and 124357 transitions. Word has length 611 [2022-11-03 02:30:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:30:06,952 INFO L495 AbstractCegarLoop]: Abstraction has 88172 states and 124357 transitions. [2022-11-03 02:30:06,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-03 02:30:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 88172 states and 124357 transitions. [2022-11-03 02:30:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-11-03 02:30:06,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:06,990 INFO L195 NwaCegarLoop]: trace histogram [56, 51, 51, 51, 51, 51, 51, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:07,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:30:07,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ffb0c7a-8002-4109-bb20-0d1b4742165d/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:07,216 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:07,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1925153041, now seen corresponding path program 1 times [2022-11-03 02:30:07,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:07,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644693420] [2022-11-03 02:30:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:07,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 10770 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10763 trivial. 0 not checked. [2022-11-03 02:30:08,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:08,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644693420] [2022-11-03 02:30:08,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644693420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:30:08,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:30:08,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:30:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116866251] [2022-11-03 02:30:08,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:30:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:30:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:30:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:30:08,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:08,441 INFO L87 Difference]: Start difference. First operand 88172 states and 124357 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-03 02:30:10,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:30:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:30:18,117 INFO L93 Difference]: Finished difference Result 193770 states and 273309 transitions. [2022-11-03 02:30:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:30:18,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 622 [2022-11-03 02:30:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:30:18,965 INFO L225 Difference]: With dead ends: 193770 [2022-11-03 02:30:18,965 INFO L226 Difference]: Without dead ends: 111850 [2022-11-03 02:30:19,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:30:19,157 INFO L413 NwaCegarLoop]: 4207 mSDtfsCounter, 2756 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 6817 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:30:19,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 6817 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:30:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111850 states.