./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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-e04fb08 [2022-11-16 11:29:10,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:29:10,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:29:10,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:29:10,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:29:10,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:29:10,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:29:10,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:29:10,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:29:10,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:29:10,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:29:10,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:29:10,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:29:10,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:29:10,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:29:10,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:29:10,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:29:10,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:29:10,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:29:10,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:29:10,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:29:10,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:29:10,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:29:10,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:29:10,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:29:10,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:29:10,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:29:10,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:29:10,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:29:10,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:29:10,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:29:10,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:29:10,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:29:10,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:29:10,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:29:10,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:29:10,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:29:10,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:29:10,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:29:10,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:29:10,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:29:10,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:29:10,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:29:10,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:29:10,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:29:10,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:29:10,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:29:10,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:29:10,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:29:10,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:29:10,579 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:29:10,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:29:10,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:29:10,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:29:10,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:29:10,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:29:10,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:29:10,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:29:10,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:29:10,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:29:10,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:29:10,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:29:10,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:29:10,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:29:10,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:29:10,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:29:10,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:29:10,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:29:10,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:29:10,584 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:29:10,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:29:10,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:29:10,585 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_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-16 11:29:10,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:29:10,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:29:10,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:29:10,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:29:10,927 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:29:10,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-16 11:29:11,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/data/1d6e24bc6/bc4fc51cd21c49f8865181cb54569d93/FLAG813a03cc7 [2022-11-16 11:29:12,111 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:29:12,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-16 11:29:12,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/data/1d6e24bc6/bc4fc51cd21c49f8865181cb54569d93/FLAG813a03cc7 [2022-11-16 11:29:12,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/data/1d6e24bc6/bc4fc51cd21c49f8865181cb54569d93 [2022-11-16 11:29:12,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:29:12,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:29:12,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:29:12,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:29:12,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:29:12,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:12" (1/1) ... [2022-11-16 11:29:12,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560738f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:12, skipping insertion in model container [2022-11-16 11:29:12,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:29:12" (1/1) ... [2022-11-16 11:29:12,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:29:12,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:29:16,424 WARN L229 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_7e9d1ee4-671e-47dc-a532-0cf62058ee54/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-16 11:29:16,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:16,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:29:17,114 WARN L229 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_7e9d1ee4-671e-47dc-a532-0cf62058ee54/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-16 11:29:17,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:29:17,517 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:29:17,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17 WrapperNode [2022-11-16 11:29:17,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:29:17,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:17,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:29:17,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:29:17,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:17,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:17,930 INFO L138 Inliner]: procedures = 490, calls = 4855, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7470 [2022-11-16 11:29:17,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:29:17,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:29:17,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:29:17,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:29:17,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:17,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:17,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:17,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:29:18,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:29:18,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:29:18,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:29:18,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (1/1) ... [2022-11-16 11:29:18,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:29:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:29:18,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:29:18,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9d1ee4-671e-47dc-a532-0cf62058ee54/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:29:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 11:29:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 11:29:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-11-16 11:29:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-11-16 11:29:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 11:29:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 11:29:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-16 11:29:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-16 11:29:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-11-16 11:29:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-11-16 11:29:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 11:29:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 11:29:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:29:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:29:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-11-16 11:29:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-11-16 11:29:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-11-16 11:29:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-11-16 11:29:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-16 11:29:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-16 11:29:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 11:29:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 11:29:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:29:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:29:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-11-16 11:29:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-11-16 11:29:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-11-16 11:29:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-11-16 11:29:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-16 11:29:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-16 11:29:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:29:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-11-16 11:29:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-11-16 11:29:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 11:29:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 11:29:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:29:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:29:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-11-16 11:29:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-11-16 11:29:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-16 11:29:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-16 11:29:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:29:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-11-16 11:29:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-11-16 11:29:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-16 11:29:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-16 11:29:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-11-16 11:29:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-11-16 11:29:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-11-16 11:29:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-11-16 11:29:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-11-16 11:29:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:29:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:29:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:29:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:29:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-11-16 11:29:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-11-16 11:29:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-16 11:29:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-16 11:29:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2022-11-16 11:29:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2022-11-16 11:29:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:29:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-11-16 11:29:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-11-16 11:29:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-11-16 11:29:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-11-16 11:29:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:29:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:29:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-11-16 11:29:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-11-16 11:29:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 11:29:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 11:29:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-11-16 11:29:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-11-16 11:29:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-11-16 11:29:18,390 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-11-16 11:29:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-11-16 11:29:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-16 11:29:18,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-16 11:29:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-11-16 11:29:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-11-16 11:29:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-11-16 11:29:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-11-16 11:29:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-11-16 11:29:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-11-16 11:29:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 11:29:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 11:29:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-11-16 11:29:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-11-16 11:29:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:29:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-16 11:29:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-16 11:29:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-16 11:29:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-16 11:29:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:29:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-11-16 11:29:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-11-16 11:29:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 11:29:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 11:29:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:29:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:29:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:29:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-16 11:29:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-16 11:29:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-11-16 11:29:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-11-16 11:29:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-11-16 11:29:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-11-16 11:29:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:29:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:29:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-11-16 11:29:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-11-16 11:29:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-11-16 11:29:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-11-16 11:29:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 11:29:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 11:29:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-11-16 11:29:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-11-16 11:29:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-11-16 11:29:18,399 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-11-16 11:29:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-11-16 11:29:18,399 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-11-16 11:29:18,399 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-11-16 11:29:18,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-11-16 11:29:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-11-16 11:29:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-11-16 11:29:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 11:29:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 11:29:18,400 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 11:29:18,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 11:29:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-11-16 11:29:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-11-16 11:29:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 11:29:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 11:29:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-11-16 11:29:18,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-11-16 11:29:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:29:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:29:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2022-11-16 11:29:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2022-11-16 11:29:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:29:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:29:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:29:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:29:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-11-16 11:29:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-11-16 11:29:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:29:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-16 11:29:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-11-16 11:29:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-11-16 11:29:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-16 11:29:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-16 11:29:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:29:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:29:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:29:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:29:18,404 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-11-16 11:29:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-11-16 11:29:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-16 11:29:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-16 11:29:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-16 11:29:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-16 11:29:18,405 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-11-16 11:29:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-11-16 11:29:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-16 11:29:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-16 11:29:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-16 11:29:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-16 11:29:18,406 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-11-16 11:29:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-11-16 11:29:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-11-16 11:29:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-11-16 11:29:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:29:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:29:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-11-16 11:29:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-11-16 11:29:18,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:29:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:29:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-11-16 11:29:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-11-16 11:29:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-16 11:29:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-16 11:29:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:29:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:29:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-11-16 11:29:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-11-16 11:29:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-16 11:29:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-16 11:29:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 11:29:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 11:29:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-11-16 11:29:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-11-16 11:29:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:29:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-11-16 11:29:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-11-16 11:29:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-11-16 11:29:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-11-16 11:29:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-11-16 11:29:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-11-16 11:29:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:29:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:29:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:29:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:29:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 11:29:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 11:29:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 11:29:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 11:29:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 11:29:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-11-16 11:29:18,412 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-11-16 11:29:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:29:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-11-16 11:29:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-11-16 11:29:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-16 11:29:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-16 11:29:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-11-16 11:29:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-11-16 11:29:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 11:29:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 11:29:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-11-16 11:29:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-11-16 11:29:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-11-16 11:29:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-11-16 11:29:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:29:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:29:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-16 11:29:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-16 11:29:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-16 11:29:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-16 11:29:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-11-16 11:29:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-11-16 11:29:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-11-16 11:29:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-11-16 11:29:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-11-16 11:29:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-11-16 11:29:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-11-16 11:29:18,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-11-16 11:29:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 11:29:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 11:29:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-11-16 11:29:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-11-16 11:29:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-11-16 11:29:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-11-16 11:29:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-11-16 11:29:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-11-16 11:29:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-11-16 11:29:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-11-16 11:29:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-11-16 11:29:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-11-16 11:29:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-16 11:29:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-16 11:29:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-11-16 11:29:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-11-16 11:29:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-11-16 11:29:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-11-16 11:29:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-16 11:29:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-16 11:29:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-11-16 11:29:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-11-16 11:29:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 11:29:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 11:29:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-11-16 11:29:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-11-16 11:29:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:29:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:29:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:29:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-16 11:29:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-16 11:29:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-16 11:29:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-16 11:29:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:29:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:29:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-11-16 11:29:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-11-16 11:29:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-11-16 11:29:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-11-16 11:29:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-11-16 11:29:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-11-16 11:29:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-11-16 11:29:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-11-16 11:29:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 11:29:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 11:29:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 11:29:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 11:29:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-11-16 11:29:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-11-16 11:29:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-11-16 11:29:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-11-16 11:29:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-11-16 11:29:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-11-16 11:29:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2022-11-16 11:29:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2022-11-16 11:29:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-11-16 11:29:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-11-16 11:29:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-11-16 11:29:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-11-16 11:29:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-16 11:29:18,425 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-16 11:29:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-16 11:29:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-16 11:29:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 11:29:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 11:29:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-11-16 11:29:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-11-16 11:29:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-11-16 11:29:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-11-16 11:29:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-16 11:29:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-16 11:29:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:29:18,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:29:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:29:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-16 11:29:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-16 11:29:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-11-16 11:29:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-11-16 11:29:19,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:29:19,364 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:29:19,978 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:29:33,295 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:29:33,326 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:29:33,327 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:29:33,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:33 BoogieIcfgContainer [2022-11-16 11:29:33,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:29:33,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:29:33,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:29:33,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:29:33,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:29:12" (1/3) ... [2022-11-16 11:29:33,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233ea231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:33, skipping insertion in model container [2022-11-16 11:29:33,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:29:17" (2/3) ... [2022-11-16 11:29:33,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233ea231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:29:33, skipping insertion in model container [2022-11-16 11:29:33,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:29:33" (3/3) ... [2022-11-16 11:29:33,345 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-16 11:29:33,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:29:33,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:29:33,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:29:33,512 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3db3b42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:29:33,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:29:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 2694 states, 1836 states have (on average 1.3616557734204793) internal successors, (2500), 1890 states have internal predecessors, (2500), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-16 11:29:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 11:29:33,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:33,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:33,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:33,557 INFO L85 PathProgramCache]: Analyzing trace with hash -985235251, now seen corresponding path program 1 times [2022-11-16 11:29:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:33,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627725966] [2022-11-16 11:29:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:29:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 11:29:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:35,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:29:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:35,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627725966] [2022-11-16 11:29:35,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627725966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:35,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:35,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:29:35,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351457990] [2022-11-16 11:29:35,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:35,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:29:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:35,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:29:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:29:35,191 INFO L87 Difference]: Start difference. First operand has 2694 states, 1836 states have (on average 1.3616557734204793) internal successors, (2500), 1890 states have internal predecessors, (2500), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 11:29:39,186 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 [] [2022-11-16 11:29:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:45,920 INFO L93 Difference]: Finished difference Result 6005 states and 9022 transitions. [2022-11-16 11:29:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:29:45,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-11-16 11:29:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:45,967 INFO L225 Difference]: With dead ends: 6005 [2022-11-16 11:29:45,967 INFO L226 Difference]: Without dead ends: 3275 [2022-11-16 11:29:45,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:29:45,993 INFO L413 NwaCegarLoop]: 3690 mSDtfsCounter, 4149 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 1250 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1250 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:45,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 6284 Invalid, 2726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1250 Valid, 1475 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-16 11:29:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2022-11-16 11:29:46,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 2911. [2022-11-16 11:29:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 1993 states have (on average 1.349222277972905) internal successors, (2689), 2035 states have internal predecessors, (2689), 740 states have call successors, (740), 178 states have call predecessors, (740), 177 states have return successors, (739), 726 states have call predecessors, (739), 739 states have call successors, (739) [2022-11-16 11:29:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4168 transitions. [2022-11-16 11:29:46,266 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4168 transitions. Word has length 56 [2022-11-16 11:29:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:46,267 INFO L495 AbstractCegarLoop]: Abstraction has 2911 states and 4168 transitions. [2022-11-16 11:29:46,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 11:29:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4168 transitions. [2022-11-16 11:29:46,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 11:29:46,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:46,280 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:29:46,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:29:46,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:29:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:46,281 INFO L85 PathProgramCache]: Analyzing trace with hash -702330870, now seen corresponding path program 1 times [2022-11-16 11:29:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:46,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998079029] [2022-11-16 11:29:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:29:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:29:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:29:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:29:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:29:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:29:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:29:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:48,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998079029] [2022-11-16 11:29:48,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998079029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:48,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:48,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:29:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208090373] [2022-11-16 11:29:48,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:48,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:29:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:48,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:29:48,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:29:48,005 INFO L87 Difference]: Start difference. First operand 2911 states and 4168 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-16 11:29:55,385 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 [] [2022-11-16 11:30:18,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:18,836 INFO L93 Difference]: Finished difference Result 6744 states and 9993 transitions. [2022-11-16 11:30:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:30:18,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 72 [2022-11-16 11:30:18,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:18,865 INFO L225 Difference]: With dead ends: 6744 [2022-11-16 11:30:18,865 INFO L226 Difference]: Without dead ends: 3839 [2022-11-16 11:30:18,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:30:18,968 INFO L413 NwaCegarLoop]: 2620 mSDtfsCounter, 2728 mSDsluCounter, 14314 mSDsCounter, 0 mSdLazyCounter, 13378 mSolverCounterSat, 1957 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 16934 SdHoareTripleChecker+Invalid, 15336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1957 IncrementalHoareTripleChecker+Valid, 13378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:18,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 16934 Invalid, 15336 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1957 Valid, 13378 Invalid, 1 Unknown, 0 Unchecked, 30.0s Time] [2022-11-16 11:30:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2022-11-16 11:30:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 2918. [2022-11-16 11:30:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 1998 states have (on average 1.3483483483483483) internal successors, (2694), 2040 states have internal predecessors, (2694), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-16 11:30:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4178 transitions. [2022-11-16 11:30:19,201 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4178 transitions. Word has length 72 [2022-11-16 11:30:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:19,202 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 4178 transitions. [2022-11-16 11:30:19,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-16 11:30:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4178 transitions. [2022-11-16 11:30:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:30:19,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:19,215 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:30:19,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:19,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:19,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1150612073, now seen corresponding path program 1 times [2022-11-16 11:30:19,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:19,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587033561] [2022-11-16 11:30:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:19,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:30:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 11:30:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:30:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 11:30:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 11:30:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:30:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:30:19,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:19,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587033561] [2022-11-16 11:30:19,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587033561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:19,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:30:19,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236126243] [2022-11-16 11:30:19,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:30:19,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:30:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:30:19,831 INFO L87 Difference]: Start difference. First operand 2918 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 11:30:24,389 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 [] [2022-11-16 11:30:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:36,342 INFO L93 Difference]: Finished difference Result 6752 states and 9998 transitions. [2022-11-16 11:30:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:30:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2022-11-16 11:30:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:36,374 INFO L225 Difference]: With dead ends: 6752 [2022-11-16 11:30:36,374 INFO L226 Difference]: Without dead ends: 3840 [2022-11-16 11:30:36,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:36,394 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 2759 mSDsluCounter, 5151 mSDsCounter, 0 mSdLazyCounter, 5453 mSolverCounterSat, 1988 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 7740 SdHoareTripleChecker+Invalid, 7442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1988 IncrementalHoareTripleChecker+Valid, 5453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:36,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 7740 Invalid, 7442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1988 Valid, 5453 Invalid, 1 Unknown, 0 Unchecked, 16.1s Time] [2022-11-16 11:30:36,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2022-11-16 11:30:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 2932. [2022-11-16 11:30:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2012 states have (on average 1.3449304174950298) internal successors, (2706), 2054 states have internal predecessors, (2706), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-16 11:30:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4190 transitions. [2022-11-16 11:30:36,566 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4190 transitions. Word has length 81 [2022-11-16 11:30:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:36,568 INFO L495 AbstractCegarLoop]: Abstraction has 2932 states and 4190 transitions. [2022-11-16 11:30:36,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-16 11:30:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4190 transitions. [2022-11-16 11:30:36,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:30:36,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:36,579 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:30:36,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:30:36,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1135598813, now seen corresponding path program 1 times [2022-11-16 11:30:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:36,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028149436] [2022-11-16 11:30:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:36,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:30:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 11:30:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:30:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-16 11:30:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 11:30:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:30:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:30:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028149436] [2022-11-16 11:30:37,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028149436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:37,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:37,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:30:37,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935396002] [2022-11-16 11:30:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:37,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:30:37,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:37,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:30:37,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:30:37,980 INFO L87 Difference]: Start difference. First operand 2932 states and 4190 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-16 11:30:44,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:30:47,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:31:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:06,389 INFO L93 Difference]: Finished difference Result 6776 states and 10016 transitions. [2022-11-16 11:31:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:31:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 80 [2022-11-16 11:31:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:06,415 INFO L225 Difference]: With dead ends: 6776 [2022-11-16 11:31:06,415 INFO L226 Difference]: Without dead ends: 3850 [2022-11-16 11:31:06,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:31:06,430 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 2741 mSDsluCounter, 14278 mSDsCounter, 0 mSdLazyCounter, 13268 mSolverCounterSat, 1955 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 16876 SdHoareTripleChecker+Invalid, 15224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1955 IncrementalHoareTripleChecker+Valid, 13268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:06,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3132 Valid, 16876 Invalid, 15224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1955 Valid, 13268 Invalid, 1 Unknown, 0 Unchecked, 27.9s Time] [2022-11-16 11:31:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-16 11:31:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 2934. [2022-11-16 11:31:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2014 states have (on average 1.3445878848063555) internal successors, (2708), 2055 states have internal predecessors, (2708), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 729 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-16 11:31:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 4192 transitions. [2022-11-16 11:31:06,606 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 4192 transitions. Word has length 80 [2022-11-16 11:31:06,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:06,607 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 4192 transitions. [2022-11-16 11:31:06,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-16 11:31:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 4192 transitions. [2022-11-16 11:31:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-16 11:31:06,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:06,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-16 11:31:06,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:31:06,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1929394297, now seen corresponding path program 1 times [2022-11-16 11:31:06,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:06,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529297618] [2022-11-16 11:31:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:06,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:31:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:31:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:31:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:31:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:31:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 11:31:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:31:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 11:31:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:31:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:31:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-16 11:31:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:07,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529297618] [2022-11-16 11:31:07,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529297618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:07,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:07,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:31:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471466700] [2022-11-16 11:31:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:07,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:31:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:07,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:31:07,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:31:07,261 INFO L87 Difference]: Start difference. First operand 2934 states and 4192 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:31:11,884 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 [] [2022-11-16 11:31:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:42,666 INFO L93 Difference]: Finished difference Result 11345 states and 17293 transitions. [2022-11-16 11:31:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:31:42,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-11-16 11:31:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:42,720 INFO L225 Difference]: With dead ends: 11345 [2022-11-16 11:31:42,720 INFO L226 Difference]: Without dead ends: 8417 [2022-11-16 11:31:42,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:31:42,735 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 12436 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 11567 mSolverCounterSat, 10855 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13240 SdHoareTripleChecker+Valid, 9764 SdHoareTripleChecker+Invalid, 22423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10855 IncrementalHoareTripleChecker+Valid, 11567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:42,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13240 Valid, 9764 Invalid, 22423 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10855 Valid, 11567 Invalid, 1 Unknown, 0 Unchecked, 34.2s Time] [2022-11-16 11:31:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8417 states. [2022-11-16 11:31:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8417 to 5781. [2022-11-16 11:31:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5781 states, 3965 states have (on average 1.3450189155107188) internal successors, (5333), 4048 states have internal predecessors, (5333), 1459 states have call successors, (1459), 353 states have call predecessors, (1459), 356 states have return successors, (1468), 1437 states have call predecessors, (1468), 1458 states have call successors, (1468) [2022-11-16 11:31:43,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5781 states to 5781 states and 8260 transitions. [2022-11-16 11:31:43,289 INFO L78 Accepts]: Start accepts. Automaton has 5781 states and 8260 transitions. Word has length 131 [2022-11-16 11:31:43,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:43,290 INFO L495 AbstractCegarLoop]: Abstraction has 5781 states and 8260 transitions. [2022-11-16 11:31:43,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:31:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5781 states and 8260 transitions. [2022-11-16 11:31:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-16 11:31:43,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:43,304 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:31:43,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:31:43,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:43,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:43,305 INFO L85 PathProgramCache]: Analyzing trace with hash 410232436, now seen corresponding path program 1 times [2022-11-16 11:31:43,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:43,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096776882] [2022-11-16 11:31:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:43,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:31:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 11:31:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:31:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:31:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:31:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:31:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:31:43,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:43,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096776882] [2022-11-16 11:31:43,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096776882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:43,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:43,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:43,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250330979] [2022-11-16 11:31:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:43,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:31:43,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:43,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:31:43,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:31:43,872 INFO L87 Difference]: Start difference. First operand 5781 states and 8260 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:31:47,658 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 [] [2022-11-16 11:31:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:57,786 INFO L93 Difference]: Finished difference Result 13371 states and 19648 transitions. [2022-11-16 11:31:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:31:57,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2022-11-16 11:31:57,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:57,836 INFO L225 Difference]: With dead ends: 13371 [2022-11-16 11:31:57,836 INFO L226 Difference]: Without dead ends: 7596 [2022-11-16 11:31:57,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:31:57,861 INFO L413 NwaCegarLoop]: 2553 mSDtfsCounter, 6137 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 3727 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6505 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 7326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3727 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:57,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6505 Valid, 5413 Invalid, 7326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3727 Valid, 3598 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2022-11-16 11:31:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2022-11-16 11:31:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 5780. [2022-11-16 11:31:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5780 states, 3965 states have (on average 1.344514501891551) internal successors, (5331), 4048 states have internal predecessors, (5331), 1457 states have call successors, (1457), 354 states have call predecessors, (1457), 357 states have return successors, (1466), 1435 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-16 11:31:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 8254 transitions. [2022-11-16 11:31:58,364 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 8254 transitions. Word has length 94 [2022-11-16 11:31:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:58,364 INFO L495 AbstractCegarLoop]: Abstraction has 5780 states and 8254 transitions. [2022-11-16 11:31:58,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:31:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 8254 transitions. [2022-11-16 11:31:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:31:58,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:58,375 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:31:58,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:31:58,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2003123870, now seen corresponding path program 1 times [2022-11-16 11:31:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:58,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876317160] [2022-11-16 11:31:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:58,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:31:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:31:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-16 11:31:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 11:31:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:31:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:31:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:31:58,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:58,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876317160] [2022-11-16 11:31:58,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876317160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:58,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:58,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:58,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782435247] [2022-11-16 11:31:58,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:58,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:31:58,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:58,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:31:58,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:31:58,910 INFO L87 Difference]: Start difference. First operand 5780 states and 8254 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:02,718 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 [] [2022-11-16 11:32:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:13,536 INFO L93 Difference]: Finished difference Result 13366 states and 19628 transitions. [2022-11-16 11:32:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:32:13,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2022-11-16 11:32:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:13,578 INFO L225 Difference]: With dead ends: 13366 [2022-11-16 11:32:13,579 INFO L226 Difference]: Without dead ends: 7592 [2022-11-16 11:32:13,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:32:13,600 INFO L413 NwaCegarLoop]: 2583 mSDtfsCounter, 6085 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 3591 mSolverCounterSat, 3703 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6456 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 7295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3703 IncrementalHoareTripleChecker+Valid, 3591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:13,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6456 Valid, 5462 Invalid, 7295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3703 Valid, 3591 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2022-11-16 11:32:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2022-11-16 11:32:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 5776. [2022-11-16 11:32:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5776 states, 3963 states have (on average 1.3441836992177643) internal successors, (5327), 4046 states have internal predecessors, (5327), 1455 states have call successors, (1455), 354 states have call predecessors, (1455), 357 states have return successors, (1464), 1433 states have call predecessors, (1464), 1454 states have call successors, (1464) [2022-11-16 11:32:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5776 states to 5776 states and 8246 transitions. [2022-11-16 11:32:14,129 INFO L78 Accepts]: Start accepts. Automaton has 5776 states and 8246 transitions. Word has length 95 [2022-11-16 11:32:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:14,129 INFO L495 AbstractCegarLoop]: Abstraction has 5776 states and 8246 transitions. [2022-11-16 11:32:14,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5776 states and 8246 transitions. [2022-11-16 11:32:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:32:14,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:14,140 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:32:14,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:32:14,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2097755253, now seen corresponding path program 1 times [2022-11-16 11:32:14,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:14,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410123407] [2022-11-16 11:32:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:14,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-16 11:32:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:32:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:32:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:32:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:32:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:32:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:32:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:32:14,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:14,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410123407] [2022-11-16 11:32:14,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410123407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:14,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:14,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:32:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185322666] [2022-11-16 11:32:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:14,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:32:14,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:14,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:32:14,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:14,641 INFO L87 Difference]: Start difference. First operand 5776 states and 8246 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:18,560 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 [] [2022-11-16 11:32:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:31,436 INFO L93 Difference]: Finished difference Result 13358 states and 19606 transitions. [2022-11-16 11:32:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:32:31,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2022-11-16 11:32:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:31,488 INFO L225 Difference]: With dead ends: 13358 [2022-11-16 11:32:31,489 INFO L226 Difference]: Without dead ends: 7588 [2022-11-16 11:32:31,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:32:31,515 INFO L413 NwaCegarLoop]: 2554 mSDtfsCounter, 6117 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 3692 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 7291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3692 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:31,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6479 Valid, 5440 Invalid, 7291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3692 Valid, 3598 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-16 11:32:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-11-16 11:32:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 5772. [2022-11-16 11:32:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 3961 states have (on average 1.3438525624842212) internal successors, (5323), 4044 states have internal predecessors, (5323), 1453 states have call successors, (1453), 354 states have call predecessors, (1453), 357 states have return successors, (1462), 1431 states have call predecessors, (1462), 1452 states have call successors, (1462) [2022-11-16 11:32:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 8238 transitions. [2022-11-16 11:32:32,156 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 8238 transitions. Word has length 93 [2022-11-16 11:32:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:32,157 INFO L495 AbstractCegarLoop]: Abstraction has 5772 states and 8238 transitions. [2022-11-16 11:32:32,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 8238 transitions. [2022-11-16 11:32:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 11:32:32,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:32,170 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 11:32:32,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:32:32,171 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:32,171 INFO L85 PathProgramCache]: Analyzing trace with hash -2066437397, now seen corresponding path program 1 times [2022-11-16 11:32:32,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:32,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804139621] [2022-11-16 11:32:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 11:32:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:32:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:32:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:32:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:32:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:32:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:32:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 11:32:32,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:32,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804139621] [2022-11-16 11:32:32,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804139621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:32,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:32,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:32:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455046400] [2022-11-16 11:32:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:32,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:32:32,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:32:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:32,778 INFO L87 Difference]: Start difference. First operand 5772 states and 8238 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:36,221 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 [] [2022-11-16 11:32:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:50,676 INFO L93 Difference]: Finished difference Result 13350 states and 19584 transitions. [2022-11-16 11:32:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:32:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2022-11-16 11:32:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:50,719 INFO L225 Difference]: With dead ends: 13350 [2022-11-16 11:32:50,719 INFO L226 Difference]: Without dead ends: 7584 [2022-11-16 11:32:50,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:32:50,740 INFO L413 NwaCegarLoop]: 2538 mSDtfsCounter, 6110 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 3625 mSolverCounterSat, 3662 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6484 SdHoareTripleChecker+Valid, 5391 SdHoareTripleChecker+Invalid, 7288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3662 IncrementalHoareTripleChecker+Valid, 3625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:50,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6484 Valid, 5391 Invalid, 7288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3662 Valid, 3625 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time] [2022-11-16 11:32:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7584 states. [2022-11-16 11:32:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7584 to 5768. [2022-11-16 11:32:51,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 3959 states have (on average 1.3435210911846427) internal successors, (5319), 4042 states have internal predecessors, (5319), 1451 states have call successors, (1451), 354 states have call predecessors, (1451), 357 states have return successors, (1460), 1429 states have call predecessors, (1460), 1450 states have call successors, (1460) [2022-11-16 11:32:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8230 transitions. [2022-11-16 11:32:51,320 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8230 transitions. Word has length 92 [2022-11-16 11:32:51,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:51,320 INFO L495 AbstractCegarLoop]: Abstraction has 5768 states and 8230 transitions. [2022-11-16 11:32:51,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 11:32:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8230 transitions. [2022-11-16 11:32:51,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-16 11:32:51,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:51,333 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-16 11:32:51,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:32:51,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:51,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash -538958476, now seen corresponding path program 1 times [2022-11-16 11:32:51,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:51,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101576354] [2022-11-16 11:32:51,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:51,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 11:32:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:32:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-16 11:32:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:32:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-16 11:32:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 11:32:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 11:32:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:32:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 11:32:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:32:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 11:32:51,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:51,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101576354] [2022-11-16 11:32:51,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101576354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:51,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:51,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:32:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66625550] [2022-11-16 11:32:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:51,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:32:51,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:32:51,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:32:51,936 INFO L87 Difference]: Start difference. First operand 5768 states and 8230 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:32:56,561 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 [] [2022-11-16 11:33:01,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:33:40,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:40,868 INFO L93 Difference]: Finished difference Result 20878 states and 31123 transitions. [2022-11-16 11:33:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:33:40,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-11-16 11:33:40,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:40,949 INFO L225 Difference]: With dead ends: 20878 [2022-11-16 11:33:40,949 INFO L226 Difference]: Without dead ends: 15116 [2022-11-16 11:33:40,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:33:40,977 INFO L413 NwaCegarLoop]: 2975 mSDtfsCounter, 9576 mSDsluCounter, 7704 mSDsCounter, 0 mSdLazyCounter, 12924 mSolverCounterSat, 7469 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10338 SdHoareTripleChecker+Valid, 10679 SdHoareTripleChecker+Invalid, 20395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7469 IncrementalHoareTripleChecker+Valid, 12924 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:40,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10338 Valid, 10679 Invalid, 20395 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7469 Valid, 12924 Invalid, 2 Unknown, 0 Unchecked, 46.4s Time] [2022-11-16 11:33:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15116 states. [2022-11-16 11:33:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15116 to 11396. [2022-11-16 11:33:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 7818 states have (on average 1.3429265796878997) internal successors, (10499), 7983 states have internal predecessors, (10499), 2866 states have call successors, (2866), 704 states have call predecessors, (2866), 711 states have return successors, (2885), 2824 states have call predecessors, (2885), 2865 states have call successors, (2885) [2022-11-16 11:33:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 16250 transitions. [2022-11-16 11:33:42,205 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 16250 transitions. Word has length 112 [2022-11-16 11:33:42,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:42,206 INFO L495 AbstractCegarLoop]: Abstraction has 11396 states and 16250 transitions. [2022-11-16 11:33:42,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:33:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 16250 transitions. [2022-11-16 11:33:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-16 11:33:42,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:42,217 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-16 11:33:42,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:33:42,217 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:33:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1384240767, now seen corresponding path program 1 times [2022-11-16 11:33:42,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:42,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103294661] [2022-11-16 11:33:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-16 11:33:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:33:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 11:33:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:33:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:33:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:33:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 11:33:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:33:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:33:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 11:33:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:33:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 11:33:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:42,793 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-16 11:33:42,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:42,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103294661] [2022-11-16 11:33:42,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103294661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:42,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:42,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:33:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452967052] [2022-11-16 11:33:42,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:42,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:33:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:42,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:33:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:33:42,797 INFO L87 Difference]: Start difference. First operand 11396 states and 16250 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:33:47,670 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 [] [2022-11-16 11:33:51,783 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 [] [2022-11-16 11:34:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:34,997 INFO L93 Difference]: Finished difference Result 44177 states and 66983 transitions. [2022-11-16 11:34:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:34:34,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-11-16 11:34:34,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:35,171 INFO L225 Difference]: With dead ends: 44177 [2022-11-16 11:34:35,171 INFO L226 Difference]: Without dead ends: 32787 [2022-11-16 11:34:35,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:34:35,222 INFO L413 NwaCegarLoop]: 3135 mSDtfsCounter, 10995 mSDsluCounter, 8534 mSDsCounter, 0 mSdLazyCounter, 14413 mSolverCounterSat, 8547 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11764 SdHoareTripleChecker+Valid, 11669 SdHoareTripleChecker+Invalid, 22962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8547 IncrementalHoareTripleChecker+Valid, 14413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:35,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11764 Valid, 11669 Invalid, 22962 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8547 Valid, 14413 Invalid, 2 Unknown, 0 Unchecked, 47.0s Time] [2022-11-16 11:34:35,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32787 states. [2022-11-16 11:34:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32787 to 22453. [2022-11-16 11:34:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22453 states, 15404 states have (on average 1.3415346663204362) internal successors, (20665), 15723 states have internal predecessors, (20665), 5629 states have call successors, (5629), 1392 states have call predecessors, (5629), 1419 states have return successors, (5724), 5557 states have call predecessors, (5724), 5628 states have call successors, (5724) [2022-11-16 11:34:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22453 states to 22453 states and 32018 transitions. [2022-11-16 11:34:38,039 INFO L78 Accepts]: Start accepts. Automaton has 22453 states and 32018 transitions. Word has length 136 [2022-11-16 11:34:38,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:38,039 INFO L495 AbstractCegarLoop]: Abstraction has 22453 states and 32018 transitions. [2022-11-16 11:34:38,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-16 11:34:38,040 INFO L276 IsEmpty]: Start isEmpty. Operand 22453 states and 32018 transitions. [2022-11-16 11:34:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-16 11:34:38,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:38,051 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 11:34:38,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:34:38,051 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:34:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash 108975269, now seen corresponding path program 1 times [2022-11-16 11:34:38,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:38,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553848296] [2022-11-16 11:34:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:38,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:34:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:34:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:34:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:34:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:34:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:34:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 11:34:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:34:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 11:34:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-16 11:34:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:34:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-16 11:34:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-16 11:34:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:34:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 11:34:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-16 11:34:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-16 11:34:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-16 11:34:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 11:34:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 11:34:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:39,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553848296] [2022-11-16 11:34:39,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553848296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:39,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:39,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:34:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368200010] [2022-11-16 11:34:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:39,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:34:39,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:39,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:34:39,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:34:39,120 INFO L87 Difference]: Start difference. First operand 22453 states and 32018 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 11:34:43,986 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 [] [2022-11-16 11:34:50,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:35:34,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:34,486 INFO L93 Difference]: Finished difference Result 87595 states and 132735 transitions. [2022-11-16 11:35:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:35:34,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2022-11-16 11:35:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:35,242 INFO L225 Difference]: With dead ends: 87595 [2022-11-16 11:35:35,242 INFO L226 Difference]: Without dead ends: 65148 [2022-11-16 11:35:35,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:35:35,366 INFO L413 NwaCegarLoop]: 3136 mSDtfsCounter, 11282 mSDsluCounter, 8601 mSDsCounter, 0 mSdLazyCounter, 14323 mSolverCounterSat, 8639 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12090 SdHoareTripleChecker+Valid, 11737 SdHoareTripleChecker+Invalid, 22963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8639 IncrementalHoareTripleChecker+Valid, 14323 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:35,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12090 Valid, 11737 Invalid, 22963 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8639 Valid, 14323 Invalid, 1 Unknown, 0 Unchecked, 46.6s Time] [2022-11-16 11:35:35,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65148 states. [2022-11-16 11:35:41,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65148 to 44486. [2022-11-16 11:35:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44486 states, 30502 states have (on average 1.3399449216444823) internal successors, (40871), 31141 states have internal predecessors, (40871), 11148 states have call successors, (11148), 2780 states have call predecessors, (11148), 2835 states have return successors, (11339), 11004 states have call predecessors, (11339), 11147 states have call successors, (11339) [2022-11-16 11:35:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44486 states to 44486 states and 63358 transitions. [2022-11-16 11:35:41,732 INFO L78 Accepts]: Start accepts. Automaton has 44486 states and 63358 transitions. Word has length 152 [2022-11-16 11:35:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:41,733 INFO L495 AbstractCegarLoop]: Abstraction has 44486 states and 63358 transitions. [2022-11-16 11:35:41,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 11:35:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 44486 states and 63358 transitions. [2022-11-16 11:35:41,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-16 11:35:41,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:41,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 11:35:41,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:35:41,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:35:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:41,749 INFO L85 PathProgramCache]: Analyzing trace with hash 365413751, now seen corresponding path program 1 times [2022-11-16 11:35:41,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:41,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217839869] [2022-11-16 11:35:41,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:41,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-16 11:35:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:35:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:35:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 11:35:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:35:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:35:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-16 11:35:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:35:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:35:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:35:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 11:35:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-16 11:35:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 11:35:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-16 11:35:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 11:35:42,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:42,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217839869] [2022-11-16 11:35:42,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217839869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:42,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:42,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:35:42,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481084824] [2022-11-16 11:35:42,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:42,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:35:42,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:42,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:35:42,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:35:42,564 INFO L87 Difference]: Start difference. First operand 44486 states and 63358 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 11:35:47,441 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 [] [2022-11-16 11:35:50,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:36:27,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:36:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:51,013 INFO L93 Difference]: Finished difference Result 172964 states and 261499 transitions. [2022-11-16 11:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:36:51,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-11-16 11:36:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:52,076 INFO L225 Difference]: With dead ends: 172964 [2022-11-16 11:36:52,076 INFO L226 Difference]: Without dead ends: 128484 [2022-11-16 11:36:52,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:36:52,279 INFO L413 NwaCegarLoop]: 3601 mSDtfsCounter, 11123 mSDsluCounter, 9811 mSDsCounter, 0 mSdLazyCounter, 14813 mSolverCounterSat, 9484 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11907 SdHoareTripleChecker+Valid, 13412 SdHoareTripleChecker+Invalid, 24298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9484 IncrementalHoareTripleChecker+Valid, 14813 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:52,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11907 Valid, 13412 Invalid, 24298 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9484 Valid, 14813 Invalid, 1 Unknown, 0 Unchecked, 50.7s Time] [2022-11-16 11:36:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128484 states. [2022-11-16 11:37:02,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128484 to 87166. [2022-11-16 11:37:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87166 states, 59686 states have (on average 1.3356398485406964) internal successors, (79719), 60965 states have internal predecessors, (79719), 21828 states have call successors, (21828), 5540 states have call predecessors, (21828), 5651 states have return successors, (22211), 21540 states have call predecessors, (22211), 21827 states have call successors, (22211) [2022-11-16 11:37:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87166 states to 87166 states and 123758 transitions. [2022-11-16 11:37:03,118 INFO L78 Accepts]: Start accepts. Automaton has 87166 states and 123758 transitions. Word has length 151 [2022-11-16 11:37:03,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:03,118 INFO L495 AbstractCegarLoop]: Abstraction has 87166 states and 123758 transitions. [2022-11-16 11:37:03,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-16 11:37:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 87166 states and 123758 transitions. [2022-11-16 11:37:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-16 11:37:03,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:03,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2022-11-16 11:37:03,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:37:03,129 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:37:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:03,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1812335353, now seen corresponding path program 1 times [2022-11-16 11:37:03,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:03,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070188097] [2022-11-16 11:37:03,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:03,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 11:37:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:37:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-16 11:37:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:37:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-16 11:37:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 11:37:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:37:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-16 11:37:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 11:37:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:37:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:37:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:37:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 11:37:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:37:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-16 11:37:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 11:37:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 11:37:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-16 11:37:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:04,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070188097] [2022-11-16 11:37:04,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070188097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:04,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:04,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:37:04,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274975013] [2022-11-16 11:37:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:04,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:37:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:37:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:37:04,263 INFO L87 Difference]: Start difference. First operand 87166 states and 123758 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-16 11:37:08,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []