./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R --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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- 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-38b53e6 [2022-11-25 17:54:04,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:54:04,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:54:05,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:54:05,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:54:05,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:54:05,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:54:05,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:54:05,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:54:05,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:54:05,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:54:05,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:54:05,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:54:05,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:54:05,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:54:05,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:54:05,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:54:05,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:54:05,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:54:05,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:54:05,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:54:05,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:54:05,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:54:05,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:54:05,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:54:05,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:54:05,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:54:05,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:54:05,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:54:05,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:54:05,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:54:05,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:54:05,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:54:05,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:54:05,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:54:05,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:54:05,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:54:05,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:54:05,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:54:05,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:54:05,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:54:05,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:54:05,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:54:05,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:54:05,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:54:05,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:54:05,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:54:05,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:54:05,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:54:05,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:54:05,061 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:54:05,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:54:05,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:54:05,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:54:05,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:54:05,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:54:05,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:54:05,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:54:05,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:54:05,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:54:05,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:54:05,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:54:05,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:54:05,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:05,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:54:05,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:54:05,065 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:54:05,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:54:05,066 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2022-11-25 17:54:05,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:54:05,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:54:05,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:54:05,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:54:05,408 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:54:05,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 17:54:08,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:54:09,107 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:54:09,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 17:54:09,153 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/data/edc392182/aaa31624fae54185a816d3d807f8fae2/FLAGe0ff83082 [2022-11-25 17:54:09,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/data/edc392182/aaa31624fae54185a816d3d807f8fae2 [2022-11-25 17:54:09,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:54:09,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:54:09,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:09,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:54:09,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:54:09,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:09" (1/1) ... [2022-11-25 17:54:09,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6a0853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:09, skipping insertion in model container [2022-11-25 17:54:09,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:09" (1/1) ... [2022-11-25 17:54:09,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:54:09,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:54:10,042 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:54:10,090 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:54:10,097 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:54:10,102 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:54:10,106 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:54:10,112 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:54:10,130 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:54:10,158 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:54:10,159 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:54:10,160 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:54:10,167 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:54:10,176 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:54:10,177 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:54:10,183 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:54:10,371 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 17:54:10,398 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 17:54:10,475 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:10,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-11-25 17:54:10,553 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:54:10,565 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,568 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,568 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,569 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,570 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,574 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,582 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,589 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,597 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,606 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:54:10,661 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,701 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:10,706 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 17:54:10,724 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:10,731 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:54:10,745 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:54:10,813 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,820 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,827 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,833 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,833 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 17:54:10,839 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,844 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,854 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:10,860 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:10,869 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:54:10,876 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,878 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,879 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:10,885 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:10,889 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 17:54:10,895 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,896 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-11-25 17:54:10,897 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:10,902 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,903 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 17:54:10,910 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,911 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,913 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:10,915 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,915 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:10,916 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,922 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,923 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:10,923 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:10,929 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,930 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:10,931 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:10,931 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:10,932 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:10,932 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:10,938 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,939 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:10,945 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,949 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 17:54:10,956 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:10,961 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 17:54:10,966 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:10,968 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-11-25 17:54:10,969 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 17:54:10,997 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,032 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,033 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:54:11,038 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,050 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:54:11,052 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,060 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,064 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,069 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,073 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,080 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,081 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,081 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,084 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,085 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,086 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,087 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,088 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,093 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,094 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,094 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,096 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,097 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 17:54:11,097 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,098 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,100 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,102 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,103 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 17:54:11,103 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,107 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,109 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,112 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,114 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,115 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,116 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,116 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,118 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:54:11,119 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:54:11,120 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:54:11,120 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:54:11,121 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:54:11,122 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 17:54:11,123 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,123 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,124 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,125 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,126 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,126 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,127 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,130 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,132 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,134 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,134 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,135 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,135 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,136 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,137 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:54:11,138 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-11-25 17:54:11,139 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 17:54:11,139 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-11-25 17:54:11,140 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,141 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,141 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,143 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,143 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,150 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,151 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,152 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,152 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,153 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:54:11,165 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,168 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,169 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,175 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,175 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,176 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,176 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:54:11,177 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 17:54:11,177 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:54:11,177 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 17:54:11,178 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,179 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-11-25 17:54:11,180 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:11,199 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 17:54:11,220 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 17:54:11,221 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 17:54:11,221 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,222 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:54:11,223 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,223 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:54:11,233 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:54:11,234 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,249 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:54:11,282 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:54:11,283 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:54:11,287 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,294 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,317 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,328 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,329 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,330 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,331 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,332 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:11,397 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:54:11,548 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:54:11,551 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:54:11,551 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:54:11,552 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:54:11,552 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:54:11,552 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:54:11,553 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:54:11,554 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:54:11,554 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:54:11,556 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:54:11,557 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:54:11,558 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:54:11,559 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:54:11,562 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:54:11,566 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 17:54:11,570 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 17:54:11,574 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-11-25 17:54:11,587 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:54:11,590 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,591 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,592 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,593 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,593 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,594 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,594 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,595 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,595 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,597 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:54:11,601 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,604 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:11,605 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 17:54:11,611 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,613 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:54:11,616 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:54:11,623 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,628 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,636 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,643 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 17:54:11,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,647 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,648 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,650 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,654 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:54:11,659 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,661 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,662 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:11,666 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:11,666 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 17:54:11,668 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,669 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-11-25 17:54:11,669 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:11,672 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,672 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 17:54:11,674 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,675 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,676 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,677 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,677 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,678 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,680 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,680 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,681 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,683 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,683 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,684 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,685 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,686 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,686 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,688 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,688 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:11,690 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,691 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 17:54:11,693 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,694 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 17:54:11,694 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:54:11,696 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-11-25 17:54:11,697 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 17:54:11,701 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,713 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,714 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 17:54:11,714 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,720 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:54:11,721 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,724 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,725 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,726 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,726 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,730 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,730 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,730 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,733 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,733 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,735 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,739 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,740 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,741 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,743 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,744 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,744 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,746 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,748 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 17:54:11,748 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,749 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 17:54:11,756 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,758 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,758 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 17:54:11,759 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,762 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,763 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,765 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,766 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,767 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,767 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,767 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,769 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:54:11,770 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:54:11,771 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:54:11,771 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:54:11,771 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:54:11,772 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 17:54:11,772 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,773 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,773 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,774 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,774 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 17:54:11,775 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,777 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,779 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:54:11,783 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,784 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,785 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,785 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:54:11,786 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,786 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,787 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:54:11,787 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-11-25 17:54:11,788 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 17:54:11,788 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-11-25 17:54:11,789 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,789 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,790 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,791 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,792 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:54:11,797 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,797 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,797 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,798 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:54:11,798 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:54:11,800 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:54:11,800 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:54:11,801 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,801 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,801 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:54:11,802 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:54:11,802 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:54:11,802 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 17:54:11,803 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:54:11,803 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 17:54:11,804 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 17:54:11,804 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-11-25 17:54:11,805 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 17:54:11,809 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 17:54:11,828 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 17:54:11,828 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 17:54:11,828 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,829 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:54:11,829 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:54:11,830 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:54:11,830 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:54:11,833 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:54:11,843 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:54:11,843 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:54:11,844 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,847 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,852 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,861 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,862 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,863 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,864 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,865 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:54:11,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:12,054 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:54:12,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12 WrapperNode [2022-11-25 17:54:12,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:12,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:12,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:54:12,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:54:12,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,405 INFO L138 Inliner]: procedures = 245, calls = 3570, calls flagged for inlining = 118, calls inlined = 118, statements flattened = 6651 [2022-11-25 17:54:12,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:12,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:54:12,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:54:12,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:54:12,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:54:12,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:54:12,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:54:12,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:54:12,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:12,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:54:12,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d1c6aec-bfcf-4368-9d2f-649b675ff0aa/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:54:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-11-25 17:54:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-11-25 17:54:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-11-25 17:54:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-11-25 17:54:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2022-11-25 17:54:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2022-11-25 17:54:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:54:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2022-11-25 17:54:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-25 17:54:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-25 17:54:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-25 17:54:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2022-11-25 17:54:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-11-25 17:54:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:54:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-25 17:54:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-25 17:54:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-11-25 17:54:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:54:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:54:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-25 17:54:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-25 17:54:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:54:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:54:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:54:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:54:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-25 17:54:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-25 17:54:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 17:54:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 17:54:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-11-25 17:54:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-11-25 17:54:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-11-25 17:54:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-11-25 17:54:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-11-25 17:54:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-11-25 17:54:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 17:54:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:54:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-11-25 17:54:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-25 17:54:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 17:54:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-11-25 17:54:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:54:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 17:54:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 17:54:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-25 17:54:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-25 17:54:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 17:54:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 17:54:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 17:54:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 17:54:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-25 17:54:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-25 17:54:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-11-25 17:54:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-11-25 17:54:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2022-11-25 17:54:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2022-11-25 17:54:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-11-25 17:54:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-11-25 17:54:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-11-25 17:54:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-11-25 17:54:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:54:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 17:54:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 17:54:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 17:54:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 17:54:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-11-25 17:54:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-11-25 17:54:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 17:54:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 17:54:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:54:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-25 17:54:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2022-11-25 17:54:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-11-25 17:54:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-11-25 17:54:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-25 17:54:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-25 17:54:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:54:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:54:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 17:54:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 17:54:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-11-25 17:54:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-11-25 17:54:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-11-25 17:54:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-11-25 17:54:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 17:54:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 17:54:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 17:54:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-11-25 17:54:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-11-25 17:54:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 17:54:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-11-25 17:54:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-11-25 17:54:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-11-25 17:54:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-11-25 17:54:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-11-25 17:54:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-11-25 17:54:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-25 17:54:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-25 17:54:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:54:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:54:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-25 17:54:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-25 17:54:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-11-25 17:54:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-25 17:54:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 17:54:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:54:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2022-11-25 17:54:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:54:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-25 17:54:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-25 17:54:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-11-25 17:54:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2022-11-25 17:54:12,953 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2022-11-25 17:54:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-11-25 17:54:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-11-25 17:54:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-11-25 17:54:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-11-25 17:54:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-11-25 17:54:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-11-25 17:54:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 17:54:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 17:54:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-25 17:54:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-25 17:54:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-25 17:54:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-11-25 17:54:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:54:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:54:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-25 17:54:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-25 17:54:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2022-11-25 17:54:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2022-11-25 17:54:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 17:54:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 17:54:13,775 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:54:13,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:54:14,157 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:54:14,902 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-25 17:54:27,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:54:27,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:54:27,396 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:54:27,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:27 BoogieIcfgContainer [2022-11-25 17:54:27,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:54:27,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:54:27,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:54:27,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:54:27,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:54:09" (1/3) ... [2022-11-25 17:54:27,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c6e3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:27, skipping insertion in model container [2022-11-25 17:54:27,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12" (2/3) ... [2022-11-25 17:54:27,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c6e3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:27, skipping insertion in model container [2022-11-25 17:54:27,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:27" (3/3) ... [2022-11-25 17:54:27,409 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 17:54:27,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:54:27,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:54:27,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:54:27,537 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;@190c957b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:54:27,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:54:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 1465 states, 1036 states have (on average 1.3416988416988418) internal successors, (1390), 1072 states have internal predecessors, (1390), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) [2022-11-25 17:54:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 17:54:27,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:27,584 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:27,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:27,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1097637729, now seen corresponding path program 1 times [2022-11-25 17:54:27,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:27,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394206561] [2022-11-25 17:54:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:27,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:54:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:54:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:54:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:54:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:54:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:54:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:54:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:54:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:54:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:54:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:54:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:54:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:54:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:54:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:54:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:54:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:54:29,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:29,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394206561] [2022-11-25 17:54:29,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394206561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:29,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:29,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:54:29,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489818244] [2022-11-25 17:54:29,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:29,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:54:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:29,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:54:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:54:29,151 INFO L87 Difference]: Start difference. First operand has 1465 states, 1036 states have (on average 1.3416988416988418) internal successors, (1390), 1072 states have internal predecessors, (1390), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:54:34,032 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 [] [2022-11-25 17:54:36,042 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 [] [2022-11-25 17:54:45,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:45,014 INFO L93 Difference]: Finished difference Result 4487 states and 6559 transitions. [2022-11-25 17:54:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:54:45,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 117 [2022-11-25 17:54:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:45,062 INFO L225 Difference]: With dead ends: 4487 [2022-11-25 17:54:45,062 INFO L226 Difference]: Without dead ends: 2993 [2022-11-25 17:54:45,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:54:45,075 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 2935 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 1603 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 4118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1603 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:45,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 5473 Invalid, 4118 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1603 Valid, 2513 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-11-25 17:54:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2022-11-25 17:54:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2806. [2022-11-25 17:54:45,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2007 states have (on average 1.330842052815147) internal successors, (2671), 2048 states have internal predecessors, (2671), 638 states have call successors, (638), 161 states have call predecessors, (638), 160 states have return successors, (632), 616 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-25 17:54:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3941 transitions. [2022-11-25 17:54:45,349 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3941 transitions. Word has length 117 [2022-11-25 17:54:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:45,351 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 3941 transitions. [2022-11-25 17:54:45,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:54:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3941 transitions. [2022-11-25 17:54:45,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 17:54:45,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:45,362 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:45,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:54:45,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash -630547863, now seen corresponding path program 1 times [2022-11-25 17:54:45,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:45,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207688818] [2022-11-25 17:54:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:54:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:54:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:54:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:54:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:54:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:54:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:54:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:54:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:54:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:54:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:54:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:54:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:54:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:54:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:54:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:54:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:47,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:54:47,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:47,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207688818] [2022-11-25 17:54:47,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207688818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:47,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:47,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:54:47,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083747579] [2022-11-25 17:54:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:47,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:54:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:54:47,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:54:47,110 INFO L87 Difference]: Start difference. First operand 2806 states and 3941 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:54:51,402 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 [] [2022-11-25 17:55:01,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:01,293 INFO L93 Difference]: Finished difference Result 8935 states and 12943 transitions. [2022-11-25 17:55:01,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:55:01,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2022-11-25 17:55:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:01,335 INFO L225 Difference]: With dead ends: 8935 [2022-11-25 17:55:01,335 INFO L226 Difference]: Without dead ends: 6162 [2022-11-25 17:55:01,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:55:01,352 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 3601 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 2381 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3855 SdHoareTripleChecker+Valid, 5782 SdHoareTripleChecker+Invalid, 5019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2381 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:01,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3855 Valid, 5782 Invalid, 5019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2381 Valid, 2637 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2022-11-25 17:55:01,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-11-25 17:55:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5675. [2022-11-25 17:55:01,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5675 states, 4063 states have (on average 1.3293133152842727) internal successors, (5401), 4146 states have internal predecessors, (5401), 1273 states have call successors, (1273), 321 states have call predecessors, (1273), 338 states have return successors, (1387), 1251 states have call predecessors, (1387), 1267 states have call successors, (1387) [2022-11-25 17:55:01,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5675 states to 5675 states and 8061 transitions. [2022-11-25 17:55:01,809 INFO L78 Accepts]: Start accepts. Automaton has 5675 states and 8061 transitions. Word has length 129 [2022-11-25 17:55:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:01,809 INFO L495 AbstractCegarLoop]: Abstraction has 5675 states and 8061 transitions. [2022-11-25 17:55:01,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5675 states and 8061 transitions. [2022-11-25 17:55:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 17:55:01,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:01,821 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:01,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:55:01,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:01,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1927152759, now seen corresponding path program 1 times [2022-11-25 17:55:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:01,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537405529] [2022-11-25 17:55:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:01,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:55:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:55:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:55:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:55:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:55:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:55:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:55:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:55:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:55:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:55:03,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:03,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537405529] [2022-11-25 17:55:03,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537405529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:03,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:03,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:55:03,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413713843] [2022-11-25 17:55:03,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:03,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:03,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:55:03,224 INFO L87 Difference]: Start difference. First operand 5675 states and 8061 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:08,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:10,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:16,410 INFO L93 Difference]: Finished difference Result 6153 states and 8895 transitions. [2022-11-25 17:55:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:55:16,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2022-11-25 17:55:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:16,447 INFO L225 Difference]: With dead ends: 6153 [2022-11-25 17:55:16,448 INFO L226 Difference]: Without dead ends: 6150 [2022-11-25 17:55:16,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:16,453 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 2438 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 967 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 4584 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:16,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 4584 Invalid, 2847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 1878 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 17:55:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-11-25 17:55:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 5674. [2022-11-25 17:55:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 4063 states have (on average 1.3290671917302486) internal successors, (5400), 4145 states have internal predecessors, (5400), 1272 states have call successors, (1272), 321 states have call predecessors, (1272), 338 states have return successors, (1387), 1251 states have call predecessors, (1387), 1267 states have call successors, (1387) [2022-11-25 17:55:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 8059 transitions. [2022-11-25 17:55:16,819 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 8059 transitions. Word has length 130 [2022-11-25 17:55:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:16,819 INFO L495 AbstractCegarLoop]: Abstraction has 5674 states and 8059 transitions. [2022-11-25 17:55:16,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 8059 transitions. [2022-11-25 17:55:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 17:55:16,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:16,824 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:16,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:55:16,824 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash -388501716, now seen corresponding path program 1 times [2022-11-25 17:55:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:16,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480650452] [2022-11-25 17:55:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:55:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:55:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:55:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:55:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:55:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:55:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:55:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:55:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:55:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:55:17,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480650452] [2022-11-25 17:55:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480650452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:17,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:17,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:55:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915713705] [2022-11-25 17:55:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:17,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:55:17,505 INFO L87 Difference]: Start difference. First operand 5674 states and 8059 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:21,701 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 [] [2022-11-25 17:55:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:26,093 INFO L93 Difference]: Finished difference Result 6152 states and 8893 transitions. [2022-11-25 17:55:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:55:26,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2022-11-25 17:55:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:26,131 INFO L225 Difference]: With dead ends: 6152 [2022-11-25 17:55:26,131 INFO L226 Difference]: Without dead ends: 6149 [2022-11-25 17:55:26,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:26,139 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 2673 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 1313 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 3716 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:26,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2918 Valid, 3716 Invalid, 2664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1313 Valid, 1350 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-25 17:55:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2022-11-25 17:55:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 5673. [2022-11-25 17:55:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5673 states, 4063 states have (on average 1.3288210681762245) internal successors, (5399), 4144 states have internal predecessors, (5399), 1271 states have call successors, (1271), 321 states have call predecessors, (1271), 338 states have return successors, (1387), 1251 states have call predecessors, (1387), 1267 states have call successors, (1387) [2022-11-25 17:55:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5673 states to 5673 states and 8057 transitions. [2022-11-25 17:55:26,664 INFO L78 Accepts]: Start accepts. Automaton has 5673 states and 8057 transitions. Word has length 131 [2022-11-25 17:55:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:26,666 INFO L495 AbstractCegarLoop]: Abstraction has 5673 states and 8057 transitions. [2022-11-25 17:55:26,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5673 states and 8057 transitions. [2022-11-25 17:55:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 17:55:26,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:26,671 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:26,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:55:26,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 840658458, now seen corresponding path program 1 times [2022-11-25 17:55:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657345160] [2022-11-25 17:55:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:55:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:55:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:55:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:55:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:55:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:55:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:55:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:55:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:55:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:55:27,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:27,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657345160] [2022-11-25 17:55:27,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657345160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:27,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:27,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:55:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438731429] [2022-11-25 17:55:27,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:27,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:27,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:27,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:27,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:55:27,313 INFO L87 Difference]: Start difference. First operand 5673 states and 8057 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:33,271 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 [] [2022-11-25 17:55:35,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:37,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:46,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:46,219 INFO L93 Difference]: Finished difference Result 17834 states and 25985 transitions. [2022-11-25 17:55:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:55:46,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2022-11-25 17:55:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:46,291 INFO L225 Difference]: With dead ends: 17834 [2022-11-25 17:55:46,292 INFO L226 Difference]: Without dead ends: 12194 [2022-11-25 17:55:46,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:55:46,318 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 2942 mSDsluCounter, 4816 mSDsCounter, 0 mSdLazyCounter, 3442 mSolverCounterSat, 1598 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 7005 SdHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1598 IncrementalHoareTripleChecker+Valid, 3442 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:46,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3197 Valid, 7005 Invalid, 5043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1598 Valid, 3442 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2022-11-25 17:55:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12194 states. [2022-11-25 17:55:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12194 to 11328. [2022-11-25 17:55:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11328 states, 8125 states have (on average 1.329723076923077) internal successors, (10804), 8295 states have internal predecessors, (10804), 2512 states have call successors, (2512), 638 states have call predecessors, (2512), 690 states have return successors, (2955), 2486 states have call predecessors, (2955), 2505 states have call successors, (2955) [2022-11-25 17:55:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11328 states to 11328 states and 16271 transitions. [2022-11-25 17:55:47,273 INFO L78 Accepts]: Start accepts. Automaton has 11328 states and 16271 transitions. Word has length 132 [2022-11-25 17:55:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:47,273 INFO L495 AbstractCegarLoop]: Abstraction has 11328 states and 16271 transitions. [2022-11-25 17:55:47,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand 11328 states and 16271 transitions. [2022-11-25 17:55:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 17:55:47,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:47,278 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:47,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:55:47,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:47,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:47,279 INFO L85 PathProgramCache]: Analyzing trace with hash 289923055, now seen corresponding path program 1 times [2022-11-25 17:55:47,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:47,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877084050] [2022-11-25 17:55:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:47,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:55:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:55:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:55:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:55:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:55:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:55:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:55:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:55:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:55:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-25 17:55:47,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:47,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877084050] [2022-11-25 17:55:47,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877084050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:47,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:47,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:55:47,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903702285] [2022-11-25 17:55:47,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:47,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:47,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:47,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:47,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:55:47,926 INFO L87 Difference]: Start difference. First operand 11328 states and 16271 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:52,592 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 [] [2022-11-25 17:55:56,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:56,560 INFO L93 Difference]: Finished difference Result 12174 states and 17763 transitions. [2022-11-25 17:55:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:55:56,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 133 [2022-11-25 17:55:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:56,614 INFO L225 Difference]: With dead ends: 12174 [2022-11-25 17:55:56,615 INFO L226 Difference]: Without dead ends: 12153 [2022-11-25 17:55:56,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:56,623 INFO L413 NwaCegarLoop]: 1709 mSDtfsCounter, 2685 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 1324 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1324 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:56,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2930 Valid, 3707 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1324 Valid, 1342 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-25 17:55:56,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12153 states. [2022-11-25 17:55:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12153 to 11309. [2022-11-25 17:55:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11309 states, 8111 states have (on average 1.3296757489828628) internal successors, (10785), 8280 states have internal predecessors, (10785), 2509 states have call successors, (2509), 636 states have call predecessors, (2509), 688 states have return successors, (2953), 2484 states have call predecessors, (2953), 2503 states have call successors, (2953) [2022-11-25 17:55:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11309 states to 11309 states and 16247 transitions. [2022-11-25 17:55:57,501 INFO L78 Accepts]: Start accepts. Automaton has 11309 states and 16247 transitions. Word has length 133 [2022-11-25 17:55:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:57,502 INFO L495 AbstractCegarLoop]: Abstraction has 11309 states and 16247 transitions. [2022-11-25 17:55:57,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:55:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 11309 states and 16247 transitions. [2022-11-25 17:55:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 17:55:57,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:57,509 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:57,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:55:57,510 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash -433129289, now seen corresponding path program 1 times [2022-11-25 17:55:57,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:57,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376591121] [2022-11-25 17:55:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:57,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:55:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:55:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:55:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:55:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:55:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:55:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:55:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:55:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:55:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:55:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:55:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 17:55:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-25 17:55:58,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:58,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376591121] [2022-11-25 17:55:58,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376591121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:58,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:58,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:55:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104023146] [2022-11-25 17:55:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:58,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:55:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:55:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:55:58,182 INFO L87 Difference]: Start difference. First operand 11309 states and 16247 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 17:56:03,194 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 [] [2022-11-25 17:56:05,200 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 [] [2022-11-25 17:56:16,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:16,804 INFO L93 Difference]: Finished difference Result 36125 states and 52753 transitions. [2022-11-25 17:56:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:56:16,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 154 [2022-11-25 17:56:16,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:17,044 INFO L225 Difference]: With dead ends: 36125 [2022-11-25 17:56:17,044 INFO L226 Difference]: Without dead ends: 24849 [2022-11-25 17:56:17,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:56:17,085 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 4450 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 4455 mSolverCounterSat, 2784 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 7241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2784 IncrementalHoareTripleChecker+Valid, 4455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:17,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4779 Valid, 4891 Invalid, 7241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2784 Valid, 4455 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-11-25 17:56:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24849 states. [2022-11-25 17:56:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24849 to 22531. [2022-11-25 17:56:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22531 states, 16157 states have (on average 1.3268552330259331) internal successors, (21438), 16532 states have internal predecessors, (21438), 4914 states have call successors, (4914), 1261 states have call predecessors, (4914), 1459 states have return successors, (6142), 4929 states have call predecessors, (6142), 4908 states have call successors, (6142) [2022-11-25 17:56:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22531 states to 22531 states and 32494 transitions. [2022-11-25 17:56:19,158 INFO L78 Accepts]: Start accepts. Automaton has 22531 states and 32494 transitions. Word has length 154 [2022-11-25 17:56:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:56:19,159 INFO L495 AbstractCegarLoop]: Abstraction has 22531 states and 32494 transitions. [2022-11-25 17:56:19,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 17:56:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 22531 states and 32494 transitions. [2022-11-25 17:56:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-25 17:56:19,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:56:19,174 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:56:19,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:56:19,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:56:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:56:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash -946402143, now seen corresponding path program 1 times [2022-11-25 17:56:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:56:19,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777710938] [2022-11-25 17:56:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:56:19,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:56:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:56:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:56:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:56:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:56:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:56:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:56:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:56:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:56:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:56:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:56:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:56:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:56:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:56:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:56:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:56:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:56:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:56:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 17:56:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 17:56:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:56:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 17:56:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:56:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:56:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-25 17:56:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-25 17:56:20,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:56:20,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777710938] [2022-11-25 17:56:20,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777710938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:56:20,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:56:20,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:56:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716266141] [2022-11-25 17:56:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:56:20,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:56:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:56:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:56:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:56:20,107 INFO L87 Difference]: Start difference. First operand 22531 states and 32494 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 17:56:22,669 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 [] [2022-11-25 17:56:24,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:40,019 INFO L93 Difference]: Finished difference Result 65028 states and 94100 transitions. [2022-11-25 17:56:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:56:40,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 212 [2022-11-25 17:56:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:40,224 INFO L225 Difference]: With dead ends: 65028 [2022-11-25 17:56:40,224 INFO L226 Difference]: Without dead ends: 42540 [2022-11-25 17:56:40,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:56:40,301 INFO L413 NwaCegarLoop]: 1712 mSDtfsCounter, 3791 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 2815 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 5286 SdHoareTripleChecker+Invalid, 7342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2815 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:40,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 5286 Invalid, 7342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2815 Valid, 4525 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2022-11-25 17:56:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42540 states. [2022-11-25 17:56:43,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42540 to 39655. [2022-11-25 17:56:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39655 states, 28280 states have (on average 1.3133663366336634) internal successors, (37142), 29015 states have internal predecessors, (37142), 8654 states have call successors, (8654), 2322 states have call predecessors, (8654), 2720 states have return successors, (10996), 8685 states have call predecessors, (10996), 8648 states have call successors, (10996) [2022-11-25 17:56:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39655 states to 39655 states and 56792 transitions. [2022-11-25 17:56:43,413 INFO L78 Accepts]: Start accepts. Automaton has 39655 states and 56792 transitions. Word has length 212 [2022-11-25 17:56:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:56:43,414 INFO L495 AbstractCegarLoop]: Abstraction has 39655 states and 56792 transitions. [2022-11-25 17:56:43,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-25 17:56:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 39655 states and 56792 transitions. [2022-11-25 17:56:43,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-25 17:56:43,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:56:43,434 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:56:43,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:56:43,435 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:56:43,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:56:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1466824280, now seen corresponding path program 1 times [2022-11-25 17:56:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:56:43,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321598973] [2022-11-25 17:56:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:56:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:56:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:56:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:56:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:56:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:56:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:56:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:56:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:56:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:56:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:56:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:56:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:56:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:56:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:56:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:56:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:56:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:56:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:56:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:56:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:56:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:56:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:56:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:56:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 17:56:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:56:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-25 17:56:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-11-25 17:56:44,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:56:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321598973] [2022-11-25 17:56:44,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321598973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:56:44,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:56:44,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:56:44,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517982440] [2022-11-25 17:56:44,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:56:44,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:56:44,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:56:44,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:56:44,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:56:44,324 INFO L87 Difference]: Start difference. First operand 39655 states and 56792 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:56:47,045 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 [] [2022-11-25 17:56:49,054 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 [] [2022-11-25 17:57:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:57:04,510 INFO L93 Difference]: Finished difference Result 84033 states and 122031 transitions. [2022-11-25 17:57:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:57:04,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 206 [2022-11-25 17:57:04,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:57:04,747 INFO L225 Difference]: With dead ends: 84033 [2022-11-25 17:57:04,747 INFO L226 Difference]: Without dead ends: 44413 [2022-11-25 17:57:04,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:57:04,889 INFO L413 NwaCegarLoop]: 1359 mSDtfsCounter, 1126 mSDsluCounter, 5349 mSDsCounter, 0 mSdLazyCounter, 5347 mSolverCounterSat, 559 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 6708 SdHoareTripleChecker+Invalid, 5908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 5347 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:57:04,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 6708 Invalid, 5908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [559 Valid, 5347 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2022-11-25 17:57:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44413 states. [2022-11-25 17:57:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44413 to 39664. [2022-11-25 17:57:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39664 states, 28289 states have (on average 1.313125243027325) internal successors, (37147), 29024 states have internal predecessors, (37147), 8654 states have call successors, (8654), 2322 states have call predecessors, (8654), 2720 states have return successors, (10996), 8685 states have call predecessors, (10996), 8648 states have call successors, (10996) [2022-11-25 17:57:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39664 states to 39664 states and 56797 transitions. [2022-11-25 17:57:07,889 INFO L78 Accepts]: Start accepts. Automaton has 39664 states and 56797 transitions. Word has length 206 [2022-11-25 17:57:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:57:07,890 INFO L495 AbstractCegarLoop]: Abstraction has 39664 states and 56797 transitions. [2022-11-25 17:57:07,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:57:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 39664 states and 56797 transitions. [2022-11-25 17:57:07,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-25 17:57:07,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:57:07,911 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:57:07,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:57:07,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:57:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:57:07,912 INFO L85 PathProgramCache]: Analyzing trace with hash 462813262, now seen corresponding path program 1 times [2022-11-25 17:57:07,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:57:07,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702829595] [2022-11-25 17:57:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:07,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:57:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:57:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:57:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:57:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:57:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:57:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:57:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:57:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:57:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:57:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:57:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:57:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:57:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:57:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:57:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:57:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 17:57:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:57:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 17:57:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:57:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:57:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 17:57:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 17:57:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:57:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 17:57:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 17:57:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:57:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:57:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-25 17:57:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-25 17:57:08,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:57:08,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702829595] [2022-11-25 17:57:08,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702829595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:57:08,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:57:08,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:57:08,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410979538] [2022-11-25 17:57:08,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:57:08,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:57:08,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:57:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:57:08,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:57:08,661 INFO L87 Difference]: Start difference. First operand 39664 states and 56797 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 17:57:11,167 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 [] [2022-11-25 17:57:13,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:19,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:21,770 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 [] [2022-11-25 17:57:33,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:57:33,397 INFO L93 Difference]: Finished difference Result 104486 states and 149729 transitions. [2022-11-25 17:57:33,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:57:33,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 223 [2022-11-25 17:57:33,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:57:33,649 INFO L225 Difference]: With dead ends: 104486 [2022-11-25 17:57:33,649 INFO L226 Difference]: Without dead ends: 64869 [2022-11-25 17:57:33,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:57:33,776 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 3914 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 4215 mSolverCounterSat, 2849 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4121 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 7068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2849 IncrementalHoareTripleChecker+Valid, 4215 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:57:33,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4121 Valid, 4875 Invalid, 7068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2849 Valid, 4215 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2022-11-25 17:57:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64869 states. [2022-11-25 17:57:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64869 to 60152. [2022-11-25 17:57:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60152 states, 43021 states have (on average 1.3103833011784942) internal successors, (56374), 44140 states have internal predecessors, (56374), 12711 states have call successors, (12711), 3777 states have call predecessors, (12711), 4419 states have return successors, (16205), 12722 states have call predecessors, (16205), 12705 states have call successors, (16205) [2022-11-25 17:57:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60152 states to 60152 states and 85290 transitions. [2022-11-25 17:57:38,239 INFO L78 Accepts]: Start accepts. Automaton has 60152 states and 85290 transitions. Word has length 223 [2022-11-25 17:57:38,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:57:38,240 INFO L495 AbstractCegarLoop]: Abstraction has 60152 states and 85290 transitions. [2022-11-25 17:57:38,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 17:57:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 60152 states and 85290 transitions. [2022-11-25 17:57:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-25 17:57:38,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:57:38,265 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:57:38,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:57:38,266 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:57:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:57:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1629374462, now seen corresponding path program 1 times [2022-11-25 17:57:38,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:57:38,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317278008] [2022-11-25 17:57:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:38,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:57:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:57:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:57:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:57:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:57:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:57:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:57:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:57:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:57:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:57:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:57:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:57:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:57:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:57:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:57:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:57:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:57:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:57:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:57:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:57:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:57:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:57:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:57:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 17:57:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 17:57:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-25 17:57:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-25 17:57:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-25 17:57:41,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:57:41,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317278008] [2022-11-25 17:57:41,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317278008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:57:41,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:57:41,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 17:57:41,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522338987] [2022-11-25 17:57:41,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:57:41,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:57:41,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:57:41,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:57:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:57:41,485 INFO L87 Difference]: Start difference. First operand 60152 states and 85290 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 17:57:44,300 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 [] [2022-11-25 17:57:55,625 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 [] [2022-11-25 17:58:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:58:16,243 INFO L93 Difference]: Finished difference Result 144693 states and 216659 transitions. [2022-11-25 17:58:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:58:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 214 [2022-11-25 17:58:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:58:17,007 INFO L225 Difference]: With dead ends: 144693 [2022-11-25 17:58:17,007 INFO L226 Difference]: Without dead ends: 105751 [2022-11-25 17:58:17,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:58:17,144 INFO L413 NwaCegarLoop]: 3241 mSDtfsCounter, 2407 mSDsluCounter, 19357 mSDsCounter, 0 mSdLazyCounter, 11121 mSolverCounterSat, 929 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 22598 SdHoareTripleChecker+Invalid, 12052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 11121 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:58:17,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 22598 Invalid, 12052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [929 Valid, 11121 Invalid, 2 Unknown, 0 Unchecked, 28.2s Time] [2022-11-25 17:58:17,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105751 states. [2022-11-25 17:58:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105751 to 58313. [2022-11-25 17:58:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58313 states, 41770 states have (on average 1.3114436198228394) internal successors, (54779), 42807 states have internal predecessors, (54779), 12308 states have call successors, (12308), 3644 states have call predecessors, (12308), 4234 states have return successors, (15520), 12337 states have call predecessors, (15520), 12304 states have call successors, (15520) [2022-11-25 17:58:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58313 states to 58313 states and 82607 transitions. [2022-11-25 17:58:22,776 INFO L78 Accepts]: Start accepts. Automaton has 58313 states and 82607 transitions. Word has length 214 [2022-11-25 17:58:22,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:58:22,776 INFO L495 AbstractCegarLoop]: Abstraction has 58313 states and 82607 transitions. [2022-11-25 17:58:22,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 7 states have internal predecessors, (98), 2 states have call successors, (31), 7 states have call predecessors, (31), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 17:58:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 58313 states and 82607 transitions. [2022-11-25 17:58:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-25 17:58:22,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:22,799 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:22,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:58:22,800 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:58:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1279200889, now seen corresponding path program 1 times [2022-11-25 17:58:22,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:58:22,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234671263] [2022-11-25 17:58:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:22,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:58:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:58:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:58:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:58:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:58:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:58:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:58:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:58:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:58:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:58:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:58:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:58:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:58:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:58:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:58:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:58:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:58:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:58:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:58:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:58:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:58:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:58:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:58:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 17:58:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:58:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 17:58:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:58:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-25 17:58:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:58:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:58:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-11-25 17:58:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:23,736 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-11-25 17:58:23,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:58:23,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234671263] [2022-11-25 17:58:23,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234671263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:58:23,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:58:23,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:58:23,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591757111] [2022-11-25 17:58:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:58:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:58:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:58:23,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:58:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:58:23,741 INFO L87 Difference]: Start difference. First operand 58313 states and 82607 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-25 17:58:26,340 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 [] [2022-11-25 17:58:31,194 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 [] [2022-11-25 17:58:52,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:58:52,017 INFO L93 Difference]: Finished difference Result 153061 states and 219111 transitions. [2022-11-25 17:58:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:58:52,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 221 [2022-11-25 17:58:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:58:52,553 INFO L225 Difference]: With dead ends: 153061 [2022-11-25 17:58:52,553 INFO L226 Difference]: Without dead ends: 94807 [2022-11-25 17:58:52,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:58:52,673 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 3637 mSDsluCounter, 5855 mSDsCounter, 0 mSdLazyCounter, 6217 mSolverCounterSat, 1829 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 7977 SdHoareTripleChecker+Invalid, 8048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1829 IncrementalHoareTripleChecker+Valid, 6217 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:58:52,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3926 Valid, 7977 Invalid, 8048 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1829 Valid, 6217 Invalid, 2 Unknown, 0 Unchecked, 21.0s Time] [2022-11-25 17:58:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94807 states.