./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 --- 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 23:48:03,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:48:03,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:48:03,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:48:03,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:48:03,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:48:03,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:48:03,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:48:03,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:48:03,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:48:03,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:48:03,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:48:03,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:48:03,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:48:03,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:48:03,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:48:03,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:48:03,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:48:03,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:48:03,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:48:03,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:48:03,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:48:03,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:48:03,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:48:03,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:48:03,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:48:03,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:48:03,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:48:03,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:48:03,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:48:03,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:48:03,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:48:03,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:48:03,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:48:03,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:48:03,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:48:03,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:48:03,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:48:03,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:48:03,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:48:03,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:48:03,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:48:03,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:48:03,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:48:03,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:48:03,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:48:03,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:48:03,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:48:03,994 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:48:03,995 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:48:03,995 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:48:03,996 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:48:03,997 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:48:03,997 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:48:03,998 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:48:03,998 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:48:03,999 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:48:03,999 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:48:03,999 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:48:04,000 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:48:04,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:48:04,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:48:04,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:48:04,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:48:04,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:48:04,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:48:04,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:48:04,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:48:04,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:48:04,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:48:04,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:48:04,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:48:04,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:48:04,007 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:48:04,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:48:04,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:48:04,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:48:04,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:48:04,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:48:04,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:48:04,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 [2022-11-25 23:48:04,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:48:04,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:48:04,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:48:04,460 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:48:04,461 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:48:04,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 23:48:07,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:48:08,391 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:48:08,392 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 23:48:08,454 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/data/0769dd906/4c0540d1860343a19ed622c9a0502bbb/FLAG887d7fb6e [2022-11-25 23:48:08,476 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/data/0769dd906/4c0540d1860343a19ed622c9a0502bbb [2022-11-25 23:48:08,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:48:08,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:48:08,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:48:08,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:48:08,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:48:08,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:48:08" (1/1) ... [2022-11-25 23:48:08,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1c9abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:08, skipping insertion in model container [2022-11-25 23:48:08,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:48:08" (1/1) ... [2022-11-25 23:48:08,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:48:08,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:48:09,481 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:48:09,517 WARN L623 FunctionHandler]: Unknown extern function __cmpxchg_wrong_size [2022-11-25 23:48:09,575 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:48:09,585 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:48:09,595 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:48:09,604 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:48:09,614 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:48:09,733 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:48:09,741 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:48:09,742 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-11-25 23:48:09,848 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-25 23:48:09,850 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:48:09,850 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:48:09,858 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-25 23:48:09,860 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:48:09,861 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:48:09,877 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 23:48:09,907 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 23:48:09,966 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 23:48:10,119 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:48:10,119 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:10,217 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,218 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,219 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,220 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,220 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,224 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,225 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-25 23:48:10,226 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,230 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,230 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-25 23:48:10,231 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,235 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:10,236 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 23:48:10,240 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,241 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:10,261 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 23:48:10,267 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,273 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:48:10,286 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:48:10,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,301 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,305 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,305 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 23:48:10,311 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:48:10,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,316 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,322 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,332 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 23:48:10,340 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,343 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,356 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 23:48:10,370 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,371 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-11-25 23:48:10,372 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:10,379 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,381 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 23:48:10,386 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,394 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,395 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,396 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:10,397 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,399 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:10,399 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,400 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,400 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,401 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:10,401 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,409 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,410 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-11-25 23:48:10,410 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,410 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,418 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,419 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-11-25 23:48:10,420 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:10,420 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-11-25 23:48:10,421 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 23:48:10,421 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,422 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,423 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,430 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,431 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:10,438 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,439 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 23:48:10,452 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,454 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 23:48:10,462 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-11-25 23:48:10,463 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 23:48:10,491 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,531 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,532 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:48:10,533 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,542 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 23:48:10,544 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:48:10,545 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:48:10,545 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 23:48:10,558 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:10,559 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:10,565 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:48:10,568 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,574 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:10,580 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:10,587 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:10,596 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,596 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,599 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,603 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,606 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,610 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,615 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,617 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,622 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,627 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,635 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,636 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,638 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,640 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:48:10,641 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,642 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:10,644 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,650 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,656 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:48:10,658 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,666 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,679 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,685 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,687 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,688 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:10,689 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,691 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:48:10,692 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:48:10,693 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:48:10,693 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:10,694 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:10,695 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:48:10,696 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 23:48:10,704 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:10,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:10,706 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,707 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:10,707 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,708 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,710 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:48:10,711 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-11-25 23:48:10,711 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 23:48:10,712 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-11-25 23:48:10,713 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 23:48:10,714 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 23:48:10,715 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,715 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,716 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,716 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,717 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,717 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,718 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,719 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:10,720 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:10,728 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,729 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,730 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,730 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:10,737 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:10,738 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:10,739 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,740 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,740 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:48:10,741 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:10,741 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:10,742 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 23:48:10,742 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 23:48:10,743 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 23:48:10,743 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 23:48:10,743 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,744 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,744 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:10,745 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:10,746 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-11-25 23:48:10,747 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:10,758 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-11-25 23:48:10,764 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 23:48:10,791 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 23:48:10,792 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 23:48:10,792 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:10,844 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 23:48:10,844 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:10,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:48:10,849 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 23:48:10,850 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:10,870 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:48:10,884 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 23:48:10,886 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:48:10,887 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:48:10,888 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:48:10,889 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 23:48:10,889 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:48:10,893 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:48:10,894 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:48:10,895 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:48:10,899 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_a06048d8-b7c2-478b-8c03-a1ff721e28c6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2022-11-25 23:48:10,921 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 23:48:10,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:48:11,070 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:48:11,217 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:48:11,219 WARN L623 FunctionHandler]: Unknown extern function __cmpxchg_wrong_size [2022-11-25 23:48:11,222 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:48:11,223 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:48:11,223 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:48:11,224 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:48:11,224 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:48:11,229 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:48:11,231 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-25 23:48:11,231 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-11-25 23:48:11,236 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-25 23:48:11,237 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:48:11,237 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:48:11,238 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-25 23:48:11,239 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:48:11,240 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:48:11,244 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 23:48:11,247 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 23:48:11,251 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 23:48:11,265 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:48:11,265 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:11,281 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,282 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,283 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,283 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,284 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,284 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,285 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-25 23:48:11,285 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,285 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,286 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-25 23:48:11,286 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,287 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:11,288 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 23:48:11,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,291 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:11,295 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 23:48:11,297 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,298 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:48:11,301 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:48:11,307 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,311 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,314 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,319 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,320 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 23:48:11,325 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:48:11,326 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,331 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,333 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,335 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 23:48:11,339 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,341 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,351 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 23:48:11,353 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,361 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-11-25 23:48:11,362 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:11,363 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,365 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 23:48:11,367 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,369 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,370 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,370 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:11,371 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,372 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:11,372 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,373 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,373 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,373 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:11,374 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,376 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,378 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-11-25 23:48:11,382 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,383 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,385 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,386 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-11-25 23:48:11,388 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:11,388 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-11-25 23:48:11,390 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-11-25 23:48:11,391 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,392 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,398 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,401 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,402 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:11,403 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,404 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 23:48:11,480 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,481 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 23:48:11,482 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-11-25 23:48:11,483 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-11-25 23:48:11,488 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,505 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,506 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 23:48:11,506 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,511 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 23:48:11,512 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 23:48:11,513 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:48:11,513 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 23:48:11,517 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 23:48:11,518 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 23:48:11,522 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:48:11,524 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,526 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:11,527 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:11,529 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:11,534 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,535 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,535 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,537 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,538 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,539 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,539 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,540 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,542 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,544 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,545 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,546 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,547 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,548 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:48:11,548 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,549 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-11-25 23:48:11,552 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,553 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,555 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:48:11,556 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,560 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,563 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,566 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,567 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,568 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:48:11,568 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,570 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 23:48:11,571 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 23:48:11,571 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:48:11,572 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:11,572 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:48:11,577 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:48:11,579 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 23:48:11,591 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:11,593 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:11,593 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,594 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 23:48:11,594 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,595 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,596 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:48:11,596 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-11-25 23:48:11,597 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 23:48:11,597 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-11-25 23:48:11,598 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 23:48:11,599 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 23:48:11,599 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,600 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,600 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,600 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,601 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,601 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,602 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,602 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:11,603 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:48:11,606 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,607 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,607 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,608 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:48:11,610 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:48:11,610 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 23:48:11,611 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,611 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,612 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:48:11,612 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 23:48:11,613 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 23:48:11,613 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 23:48:11,613 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 23:48:11,614 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 23:48:11,614 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 23:48:11,614 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,615 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,615 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:48:11,616 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:48:11,616 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-11-25 23:48:11,617 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-11-25 23:48:11,620 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-11-25 23:48:11,623 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-11-25 23:48:11,648 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 23:48:11,648 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 23:48:11,649 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:11,649 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 23:48:11,650 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:11,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:48:11,651 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 23:48:11,651 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 23:48:11,660 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:48:11,670 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 23:48:11,672 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:48:11,679 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:48:11,680 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 23:48:11,680 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-25 23:48:11,681 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 23:48:11,684 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 23:48:11,685 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:48:11,689 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:48:11,690 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_a06048d8-b7c2-478b-8c03-a1ff721e28c6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2022-11-25 23:48:11,692 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 23:48:11,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:48:11,986 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:48:11,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11 WrapperNode [2022-11-25 23:48:11,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:48:11,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:48:11,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:48:11,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:48:11,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,433 INFO L138 Inliner]: procedures = 286, calls = 3934, calls flagged for inlining = 140, calls inlined = 119, statements flattened = 8095 [2022-11-25 23:48:12,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:48:12,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:48:12,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:48:12,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:48:12,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:12,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:48:12,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:48:12,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:48:12,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:48:13,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (1/1) ... [2022-11-25 23:48:13,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:48:13,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:13,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:48:13,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:48:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-11-25 23:48:13,105 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-11-25 23:48:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-11-25 23:48:13,105 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 23:48:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:48:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:48:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:48:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:48:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:48:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-25 23:48:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-25 23:48:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-11-25 23:48:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-11-25 23:48:13,107 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-25 23:48:13,107 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-25 23:48:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 23:48:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 23:48:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-25 23:48:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-25 23:48:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:48:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:48:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-25 23:48:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-25 23:48:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-25 23:48:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-25 23:48:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-11-25 23:48:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-11-25 23:48:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 23:48:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 23:48:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 23:48:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 23:48:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 23:48:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 23:48:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-25 23:48:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-25 23:48:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-25 23:48:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-25 23:48:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:48:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:48:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:48:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:48:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:48:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:48:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-11-25 23:48:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-11-25 23:48:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-11-25 23:48:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-11-25 23:48:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-11-25 23:48:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-11-25 23:48:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:48:13,113 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 23:48:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 23:48:13,113 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 23:48:13,113 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-11-25 23:48:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-11-25 23:48:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 23:48:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 23:48:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:48:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-11-25 23:48:13,114 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-11-25 23:48:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-25 23:48:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-25 23:48:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-25 23:48:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-25 23:48:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:48:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:48:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:48:13,115 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:48:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2022-11-25 23:48:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2022-11-25 23:48:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:48:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:48:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-25 23:48:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-25 23:48:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-25 23:48:13,116 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-25 23:48:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 23:48:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 23:48:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-25 23:48:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-25 23:48:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-11-25 23:48:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-11-25 23:48:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 23:48:13,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 23:48:13,117 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-11-25 23:48:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-11-25 23:48:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-11-25 23:48:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-11-25 23:48:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-11-25 23:48:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-11-25 23:48:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:48:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-11-25 23:48:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-11-25 23:48:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:48:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:48:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:48:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-25 23:48:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-25 23:48:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:48:13,119 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-11-25 23:48:13,119 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-11-25 23:48:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-25 23:48:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-25 23:48:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:48:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:48:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 23:48:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 23:48:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-11-25 23:48:13,120 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-11-25 23:48:13,120 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-11-25 23:48:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-11-25 23:48:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:48:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:48:13,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 23:48:13,121 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 23:48:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 23:48:13,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 23:48:13,122 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-11-25 23:48:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-11-25 23:48:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-11-25 23:48:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-11-25 23:48:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-25 23:48:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-25 23:48:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:48:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:48:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:48:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2022-11-25 23:48:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2022-11-25 23:48:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 23:48:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 23:48:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-11-25 23:48:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-11-25 23:48:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-11-25 23:48:13,124 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-11-25 23:48:13,124 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-11-25 23:48:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-11-25 23:48:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-25 23:48:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-25 23:48:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:48:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:48:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-25 23:48:13,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-25 23:48:13,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-25 23:48:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-25 23:48:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-11-25 23:48:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-11-25 23:48:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 23:48:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 23:48:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:48:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-25 23:48:13,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-25 23:48:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2022-11-25 23:48:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2022-11-25 23:48:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 23:48:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 23:48:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 23:48:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 23:48:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-11-25 23:48:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-11-25 23:48:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-11-25 23:48:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-11-25 23:48:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-11-25 23:48:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-11-25 23:48:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-11-25 23:48:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-11-25 23:48:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-25 23:48:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-25 23:48:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:48:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:48:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:48:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-25 23:48:13,130 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-25 23:48:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-25 23:48:13,130 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-25 23:48:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-11-25 23:48:13,130 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-11-25 23:48:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:48:13,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:48:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-25 23:48:13,131 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-25 23:48:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:48:13,131 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:48:14,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:48:14,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:48:14,431 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:48:35,696 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:48:37,919 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:48:37,920 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:48:37,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:48:37 BoogieIcfgContainer [2022-11-25 23:48:37,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:48:37,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:48:37,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:48:37,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:48:37,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:48:08" (1/3) ... [2022-11-25 23:48:37,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a2986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:48:37, skipping insertion in model container [2022-11-25 23:48:37,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:48:11" (2/3) ... [2022-11-25 23:48:37,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528a2986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:48:37, skipping insertion in model container [2022-11-25 23:48:37,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:48:37" (3/3) ... [2022-11-25 23:48:37,942 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-25 23:48:37,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:48:37,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:48:38,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:48:38,097 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77f22306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:48:38,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:48:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 1151 states, 721 states have (on average 1.3564493758668517) internal successors, (978), 737 states have internal predecessors, (978), 343 states have call successors, (343), 86 states have call predecessors, (343), 85 states have return successors, (334), 334 states have call predecessors, (334), 334 states have call successors, (334) [2022-11-25 23:48:38,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-25 23:48:38,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:38,169 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:48:38,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:48:38,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:38,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1351770065, now seen corresponding path program 1 times [2022-11-25 23:48:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:38,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440271853] [2022-11-25 23:48:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-11-25 23:48:40,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:40,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440271853] [2022-11-25 23:48:40,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440271853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:40,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:40,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:48:40,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195953134] [2022-11-25 23:48:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:40,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:48:40,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:40,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:48:40,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:40,944 INFO L87 Difference]: Start difference. First operand has 1151 states, 721 states have (on average 1.3564493758668517) internal successors, (978), 737 states have internal predecessors, (978), 343 states have call successors, (343), 86 states have call predecessors, (343), 85 states have return successors, (334), 334 states have call predecessors, (334), 334 states have call successors, (334) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:48:42,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:48:45,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:48:49,153 WARN L539 Checker$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 23:48:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:50,069 INFO L93 Difference]: Finished difference Result 3082 states and 4450 transitions. [2022-11-25 23:48:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:48:50,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 274 [2022-11-25 23:48:50,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:50,100 INFO L225 Difference]: With dead ends: 3082 [2022-11-25 23:48:50,100 INFO L226 Difference]: Without dead ends: 1945 [2022-11-25 23:48:50,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:50,117 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 1230 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:50,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 3019 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 435 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 23:48:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2022-11-25 23:48:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1933. [2022-11-25 23:48:50,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1246 states have (on average 1.3579454253611556) internal successors, (1692), 1255 states have internal predecessors, (1692), 532 states have call successors, (532), 155 states have call predecessors, (532), 154 states have return successors, (531), 530 states have call predecessors, (531), 531 states have call successors, (531) [2022-11-25 23:48:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2755 transitions. [2022-11-25 23:48:50,314 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2755 transitions. Word has length 274 [2022-11-25 23:48:50,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:50,316 INFO L495 AbstractCegarLoop]: Abstraction has 1933 states and 2755 transitions. [2022-11-25 23:48:50,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:48:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2755 transitions. [2022-11-25 23:48:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-25 23:48:50,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:50,326 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:48:50,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:48:50,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:48:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 640210434, now seen corresponding path program 1 times [2022-11-25 23:48:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:50,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855877120] [2022-11-25 23:48:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-11-25 23:48:51,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:51,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855877120] [2022-11-25 23:48:51,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855877120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:51,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:51,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:48:51,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027264071] [2022-11-25 23:48:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:51,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:48:51,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:51,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:48:51,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:51,783 INFO L87 Difference]: Start difference. First operand 1933 states and 2755 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:48:53,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:48:56,462 WARN L539 Checker$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 23:48:59,735 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 23:49:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:00,988 INFO L93 Difference]: Finished difference Result 4960 states and 7047 transitions. [2022-11-25 23:49:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:49:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 276 [2022-11-25 23:49:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:01,013 INFO L225 Difference]: With dead ends: 4960 [2022-11-25 23:49:01,013 INFO L226 Difference]: Without dead ends: 3076 [2022-11-25 23:49:01,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:01,023 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 877 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:01,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 3073 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 449 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-25 23:49:01,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2022-11-25 23:49:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 3073. [2022-11-25 23:49:01,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3073 states, 2005 states have (on average 1.366583541147132) internal successors, (2740), 2019 states have internal predecessors, (2740), 810 states have call successors, (810), 258 states have call predecessors, (810), 257 states have return successors, (809), 807 states have call predecessors, (809), 809 states have call successors, (809) [2022-11-25 23:49:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 4359 transitions. [2022-11-25 23:49:01,175 INFO L78 Accepts]: Start accepts. Automaton has 3073 states and 4359 transitions. Word has length 276 [2022-11-25 23:49:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:01,176 INFO L495 AbstractCegarLoop]: Abstraction has 3073 states and 4359 transitions. [2022-11-25 23:49:01,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 23:49:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3073 states and 4359 transitions. [2022-11-25 23:49:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-25 23:49:01,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:01,182 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:01,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:49:01,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:01,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1065883816, now seen corresponding path program 1 times [2022-11-25 23:49:01,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:01,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212905965] [2022-11-25 23:49:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-11-25 23:49:02,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:02,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212905965] [2022-11-25 23:49:02,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212905965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:02,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:49:02,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:49:02,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753176010] [2022-11-25 23:49:02,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:02,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:49:02,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:49:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:02,450 INFO L87 Difference]: Start difference. First operand 3073 states and 4359 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 23:49:04,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:06,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:10,696 WARN L539 Checker$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 23:49:11,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:11,438 INFO L93 Difference]: Finished difference Result 7471 states and 10554 transitions. [2022-11-25 23:49:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:49:11,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 274 [2022-11-25 23:49:11,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:11,467 INFO L225 Difference]: With dead ends: 7471 [2022-11-25 23:49:11,467 INFO L226 Difference]: Without dead ends: 4447 [2022-11-25 23:49:11,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:11,479 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 792 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:11,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 3180 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 559 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2022-11-25 23:49:11,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2022-11-25 23:49:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4436. [2022-11-25 23:49:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 2921 states have (on average 1.3676823005819925) internal successors, (3995), 2939 states have internal predecessors, (3995), 1128 states have call successors, (1128), 387 states have call predecessors, (1128), 386 states have return successors, (1127), 1125 states have call predecessors, (1127), 1127 states have call successors, (1127) [2022-11-25 23:49:11,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 6250 transitions. [2022-11-25 23:49:11,676 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 6250 transitions. Word has length 274 [2022-11-25 23:49:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:11,677 INFO L495 AbstractCegarLoop]: Abstraction has 4436 states and 6250 transitions. [2022-11-25 23:49:11,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 23:49:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 6250 transitions. [2022-11-25 23:49:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-25 23:49:11,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:11,689 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 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] [2022-11-25 23:49:11,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:49:11,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:11,690 INFO L85 PathProgramCache]: Analyzing trace with hash -887219900, now seen corresponding path program 1 times [2022-11-25 23:49:11,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:11,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111070691] [2022-11-25 23:49:11,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:11,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-11-25 23:49:13,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:13,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111070691] [2022-11-25 23:49:13,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111070691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:13,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:49:13,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:49:13,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532053866] [2022-11-25 23:49:13,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:13,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:49:13,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:49:13,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:13,130 INFO L87 Difference]: Start difference. First operand 4436 states and 6250 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:49:15,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:17,409 WARN L539 Checker$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 23:49:20,323 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 23:49:22,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:22,065 INFO L93 Difference]: Finished difference Result 12981 states and 18276 transitions. [2022-11-25 23:49:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:49:22,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 309 [2022-11-25 23:49:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:22,120 INFO L225 Difference]: With dead ends: 12981 [2022-11-25 23:49:22,120 INFO L226 Difference]: Without dead ends: 8594 [2022-11-25 23:49:22,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:22,144 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 1285 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:22,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 3173 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2022-11-25 23:49:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-11-25 23:49:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7196. [2022-11-25 23:49:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7196 states, 4741 states have (on average 1.3720734022358152) internal successors, (6505), 4777 states have internal predecessors, (6505), 1827 states have call successors, (1827), 628 states have call predecessors, (1827), 627 states have return successors, (1826), 1816 states have call predecessors, (1826), 1826 states have call successors, (1826) [2022-11-25 23:49:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7196 states to 7196 states and 10158 transitions. [2022-11-25 23:49:22,701 INFO L78 Accepts]: Start accepts. Automaton has 7196 states and 10158 transitions. Word has length 309 [2022-11-25 23:49:22,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:22,704 INFO L495 AbstractCegarLoop]: Abstraction has 7196 states and 10158 transitions. [2022-11-25 23:49:22,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:49:22,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7196 states and 10158 transitions. [2022-11-25 23:49:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-25 23:49:22,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:22,725 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:49:22,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:49:22,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:22,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash 116171236, now seen corresponding path program 1 times [2022-11-25 23:49:22,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:22,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560248449] [2022-11-25 23:49:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2022-11-25 23:49:24,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:24,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560248449] [2022-11-25 23:49:24,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560248449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:24,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:49:24,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:49:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108891369] [2022-11-25 23:49:24,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:24,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:49:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:49:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:49:24,287 INFO L87 Difference]: Start difference. First operand 7196 states and 10158 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-25 23:49:26,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:28,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:31,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:33,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:35,657 WARN L539 Checker$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 23:49:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:37,363 INFO L93 Difference]: Finished difference Result 14298 states and 20193 transitions. [2022-11-25 23:49:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:49:37,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 334 [2022-11-25 23:49:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:37,405 INFO L225 Difference]: With dead ends: 14298 [2022-11-25 23:49:37,406 INFO L226 Difference]: Without dead ends: 7151 [2022-11-25 23:49:37,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:49:37,433 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 1 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:37,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4244 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 619 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2022-11-25 23:49:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states. [2022-11-25 23:49:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 6040. [2022-11-25 23:49:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6040 states, 3972 states have (on average 1.37134944612286) internal successors, (5447), 4003 states have internal predecessors, (5447), 1545 states have call successors, (1545), 523 states have call predecessors, (1545), 522 states have return successors, (1544), 1535 states have call predecessors, (1544), 1544 states have call successors, (1544) [2022-11-25 23:49:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6040 states to 6040 states and 8536 transitions. [2022-11-25 23:49:37,764 INFO L78 Accepts]: Start accepts. Automaton has 6040 states and 8536 transitions. Word has length 334 [2022-11-25 23:49:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:37,766 INFO L495 AbstractCegarLoop]: Abstraction has 6040 states and 8536 transitions. [2022-11-25 23:49:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-25 23:49:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6040 states and 8536 transitions. [2022-11-25 23:49:37,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-25 23:49:37,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:37,778 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:49:37,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:49:37,778 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash -490183190, now seen corresponding path program 1 times [2022-11-25 23:49:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:37,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708912907] [2022-11-25 23:49:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-25 23:49:39,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:39,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708912907] [2022-11-25 23:49:39,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708912907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:39,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:49:39,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:49:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543972208] [2022-11-25 23:49:39,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:39,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:49:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:39,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:49:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:39,303 INFO L87 Difference]: Start difference. First operand 6040 states and 8536 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 23:49:41,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:43,542 WARN L539 Checker$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 23:49:46,415 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 23:49:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:48,556 INFO L93 Difference]: Finished difference Result 10746 states and 15281 transitions. [2022-11-25 23:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:49:48,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 339 [2022-11-25 23:49:48,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:48,626 INFO L225 Difference]: With dead ends: 10746 [2022-11-25 23:49:48,626 INFO L226 Difference]: Without dead ends: 10743 [2022-11-25 23:49:48,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:48,634 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1195 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:48,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2854 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 3 Unknown, 0 Unchecked, 9.0s Time] [2022-11-25 23:49:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10743 states. [2022-11-25 23:49:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10743 to 10548. [2022-11-25 23:49:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10548 states, 7038 states have (on average 1.3861892583120206) internal successors, (9756), 7117 states have internal predecessors, (9756), 2591 states have call successors, (2591), 925 states have call predecessors, (2591), 918 states have return successors, (2614), 2539 states have call predecessors, (2614), 2590 states have call successors, (2614) [2022-11-25 23:49:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10548 states to 10548 states and 14961 transitions. [2022-11-25 23:49:49,108 INFO L78 Accepts]: Start accepts. Automaton has 10548 states and 14961 transitions. Word has length 339 [2022-11-25 23:49:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:49,109 INFO L495 AbstractCegarLoop]: Abstraction has 10548 states and 14961 transitions. [2022-11-25 23:49:49,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 23:49:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 10548 states and 14961 transitions. [2022-11-25 23:49:49,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-11-25 23:49:49,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:49,119 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:49:49,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:49:49,120 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:49:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1538891596, now seen corresponding path program 1 times [2022-11-25 23:49:49,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:49,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398643289] [2022-11-25 23:49:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:49,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-25 23:49:50,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:50,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398643289] [2022-11-25 23:49:50,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398643289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:50,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:49:50,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:49:50,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317717722] [2022-11-25 23:49:50,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:50,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:49:50,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:50,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:49:50,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:50,480 INFO L87 Difference]: Start difference. First operand 10548 states and 14961 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 23:49:52,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:54,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:49:58,390 WARN L539 Checker$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 23:49:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:59,436 INFO L93 Difference]: Finished difference Result 23625 states and 33489 transitions. [2022-11-25 23:49:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:49:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 347 [2022-11-25 23:49:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:59,496 INFO L225 Difference]: With dead ends: 23625 [2022-11-25 23:49:59,496 INFO L226 Difference]: Without dead ends: 13134 [2022-11-25 23:49:59,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:49:59,533 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 854 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:59,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2982 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 427 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2022-11-25 23:49:59,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-11-25 23:50:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11620. [2022-11-25 23:50:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11620 states, 7756 states have (on average 1.3861526560082518) internal successors, (10751), 7840 states have internal predecessors, (10751), 2850 states have call successors, (2850), 1020 states have call predecessors, (2850), 1013 states have return successors, (2877), 2796 states have call predecessors, (2877), 2849 states have call successors, (2877) [2022-11-25 23:50:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11620 states to 11620 states and 16478 transitions. [2022-11-25 23:50:00,238 INFO L78 Accepts]: Start accepts. Automaton has 11620 states and 16478 transitions. Word has length 347 [2022-11-25 23:50:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:00,239 INFO L495 AbstractCegarLoop]: Abstraction has 11620 states and 16478 transitions. [2022-11-25 23:50:00,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 23:50:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 11620 states and 16478 transitions. [2022-11-25 23:50:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-25 23:50:00,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:00,248 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:00,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:50:00,249 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:50:00,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:00,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1927470691, now seen corresponding path program 1 times [2022-11-25 23:50:00,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:00,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444255568] [2022-11-25 23:50:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2022-11-25 23:50:01,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:01,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444255568] [2022-11-25 23:50:01,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444255568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:01,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:01,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:50:01,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274216239] [2022-11-25 23:50:01,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:01,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:50:01,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:01,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:50:01,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:50:01,698 INFO L87 Difference]: Start difference. First operand 11620 states and 16478 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-25 23:50:03,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:05,978 WARN L539 Checker$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 23:50:10,446 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 23:50:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:11,659 INFO L93 Difference]: Finished difference Result 31138 states and 44123 transitions. [2022-11-25 23:50:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:50:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 339 [2022-11-25 23:50:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:11,738 INFO L225 Difference]: With dead ends: 31138 [2022-11-25 23:50:11,738 INFO L226 Difference]: Without dead ends: 19575 [2022-11-25 23:50:11,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:50:11,771 INFO L413 NwaCegarLoop]: 1809 mSDtfsCounter, 1149 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:11,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 3111 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 522 Invalid, 3 Unknown, 0 Unchecked, 9.3s Time] [2022-11-25 23:50:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19575 states. [2022-11-25 23:50:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19575 to 19535. [2022-11-25 23:50:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19535 states, 13148 states have (on average 1.3715393976270156) internal successors, (18033), 13292 states have internal predecessors, (18033), 4626 states have call successors, (4626), 1771 states have call predecessors, (4626), 1760 states have return successors, (4653), 4534 states have call predecessors, (4653), 4625 states have call successors, (4653) [2022-11-25 23:50:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19535 states to 19535 states and 27312 transitions. [2022-11-25 23:50:12,658 INFO L78 Accepts]: Start accepts. Automaton has 19535 states and 27312 transitions. Word has length 339 [2022-11-25 23:50:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:12,659 INFO L495 AbstractCegarLoop]: Abstraction has 19535 states and 27312 transitions. [2022-11-25 23:50:12,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-25 23:50:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19535 states and 27312 transitions. [2022-11-25 23:50:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-25 23:50:12,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:12,670 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:12,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:50:12,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:50:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2013024413, now seen corresponding path program 1 times [2022-11-25 23:50:12,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:12,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391149262] [2022-11-25 23:50:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:12,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2022-11-25 23:50:14,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:14,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391149262] [2022-11-25 23:50:14,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391149262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:14,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:14,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:50:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874715292] [2022-11-25 23:50:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:14,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:50:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:50:14,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:50:14,103 INFO L87 Difference]: Start difference. First operand 19535 states and 27312 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 23:50:16,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:18,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:22,444 WARN L539 Checker$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 23:50:23,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:23,955 INFO L93 Difference]: Finished difference Result 47026 states and 65719 transitions. [2022-11-25 23:50:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:50:23,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 356 [2022-11-25 23:50:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:24,090 INFO L225 Difference]: With dead ends: 47026 [2022-11-25 23:50:24,090 INFO L226 Difference]: Without dead ends: 27548 [2022-11-25 23:50:24,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:50:24,152 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 1081 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:24,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 3422 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2022-11-25 23:50:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27548 states. [2022-11-25 23:50:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27548 to 27539. [2022-11-25 23:50:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27539 states, 18721 states have (on average 1.3726296672186316) internal successors, (25697), 18915 states have internal predecessors, (25697), 6299 states have call successors, (6299), 2529 states have call predecessors, (6299), 2518 states have return successors, (6342), 6177 states have call predecessors, (6342), 6298 states have call successors, (6342) [2022-11-25 23:50:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27539 states to 27539 states and 38338 transitions. [2022-11-25 23:50:25,693 INFO L78 Accepts]: Start accepts. Automaton has 27539 states and 38338 transitions. Word has length 356 [2022-11-25 23:50:25,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:25,694 INFO L495 AbstractCegarLoop]: Abstraction has 27539 states and 38338 transitions. [2022-11-25 23:50:25,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-25 23:50:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 27539 states and 38338 transitions. [2022-11-25 23:50:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-11-25 23:50:25,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:25,716 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:25,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:50:25,716 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:50:25,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:25,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2116498138, now seen corresponding path program 1 times [2022-11-25 23:50:25,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:25,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657893783] [2022-11-25 23:50:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2022-11-25 23:50:32,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657893783] [2022-11-25 23:50:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657893783] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:50:32,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323344545] [2022-11-25 23:50:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:32,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:32,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:50:32,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:50:32,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:50:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:36,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 10712 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:50:36,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:50:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2022-11-25 23:50:36,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:50:36,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323344545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:36,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:50:36,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-11-25 23:50:36,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624646378] [2022-11-25 23:50:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:36,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:50:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:36,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:50:36,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:50:36,584 INFO L87 Difference]: Start difference. First operand 27539 states and 38338 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 23:50:38,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:40,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:42,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:44,368 WARN L539 Checker$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 23:50:46,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:50:50,542 WARN L539 Checker$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 23:50:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:52,412 INFO L93 Difference]: Finished difference Result 53056 states and 73869 transitions. [2022-11-25 23:50:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:50:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 357 [2022-11-25 23:50:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:52,510 INFO L225 Difference]: With dead ends: 53056 [2022-11-25 23:50:52,510 INFO L226 Difference]: Without dead ends: 25530 [2022-11-25 23:50:52,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:50:52,556 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 5 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:52,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5645 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 826 Invalid, 5 Unknown, 0 Unchecked, 14.9s Time] [2022-11-25 23:50:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25530 states. [2022-11-25 23:50:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25530 to 25524. [2022-11-25 23:50:53,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25524 states, 17362 states have (on average 1.3735168759359522) internal successors, (23847), 17545 states have internal predecessors, (23847), 5834 states have call successors, (5834), 2338 states have call predecessors, (5834), 2327 states have return successors, (5873), 5718 states have call predecessors, (5873), 5833 states have call successors, (5873) [2022-11-25 23:50:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25524 states to 25524 states and 35554 transitions. [2022-11-25 23:50:53,684 INFO L78 Accepts]: Start accepts. Automaton has 25524 states and 35554 transitions. Word has length 357 [2022-11-25 23:50:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:53,685 INFO L495 AbstractCegarLoop]: Abstraction has 25524 states and 35554 transitions. [2022-11-25 23:50:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 23:50:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 25524 states and 35554 transitions. [2022-11-25 23:50:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-11-25 23:50:53,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:53,700 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:53,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:50:53,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:50:53,928 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:50:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash 667746261, now seen corresponding path program 1 times [2022-11-25 23:50:53,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:53,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100152671] [2022-11-25 23:50:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:56,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-11-25 23:50:56,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:56,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100152671] [2022-11-25 23:50:56,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100152671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:56,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:56,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:50:56,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500038114] [2022-11-25 23:50:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:56,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:50:56,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:50:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:50:56,652 INFO L87 Difference]: Start difference. First operand 25524 states and 35554 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-25 23:50:58,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:51:00,943 WARN L539 Checker$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 23:51:07,226 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 23:51:09,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:09,412 INFO L93 Difference]: Finished difference Result 58919 states and 82140 transitions. [2022-11-25 23:51:09,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:51:09,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 368 [2022-11-25 23:51:09,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:09,560 INFO L225 Difference]: With dead ends: 58919 [2022-11-25 23:51:09,561 INFO L226 Difference]: Without dead ends: 33452 [2022-11-25 23:51:09,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:51:09,632 INFO L413 NwaCegarLoop]: 2026 mSDtfsCounter, 1373 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:09,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 4515 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1198 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 23:51:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33452 states. [2022-11-25 23:51:11,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33452 to 33362. [2022-11-25 23:51:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33362 states, 22848 states have (on average 1.3750875350140057) internal successors, (31418), 23078 states have internal predecessors, (31418), 7477 states have call successors, (7477), 3047 states have call predecessors, (7477), 3036 states have return successors, (7532), 7334 states have call predecessors, (7532), 7476 states have call successors, (7532) [2022-11-25 23:51:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33362 states to 33362 states and 46427 transitions. [2022-11-25 23:51:11,421 INFO L78 Accepts]: Start accepts. Automaton has 33362 states and 46427 transitions. Word has length 368 [2022-11-25 23:51:11,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:11,422 INFO L495 AbstractCegarLoop]: Abstraction has 33362 states and 46427 transitions. [2022-11-25 23:51:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-25 23:51:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 33362 states and 46427 transitions. [2022-11-25 23:51:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-25 23:51:11,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:11,441 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:11,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:51:11,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:51:11,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash 275854025, now seen corresponding path program 1 times [2022-11-25 23:51:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:11,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107167031] [2022-11-25 23:51:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:11,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2022-11-25 23:51:16,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107167031] [2022-11-25 23:51:16,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107167031] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:51:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729861326] [2022-11-25 23:51:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:51:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:16,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:51:16,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:51:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:34,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 10839 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 23:51:34,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:51:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2022-11-25 23:51:34,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:51:34,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729861326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:34,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:51:34,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2022-11-25 23:51:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098728070] [2022-11-25 23:51:34,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:34,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:51:34,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:34,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:51:34,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:51:34,722 INFO L87 Difference]: Start difference. First operand 33362 states and 46427 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 23:51:36,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:51:39,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:51:44,417 WARN L539 Checker$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 23:51:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:47,653 INFO L93 Difference]: Finished difference Result 66943 states and 93274 transitions. [2022-11-25 23:51:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:51:47,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) Word has length 366 [2022-11-25 23:51:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:47,778 INFO L225 Difference]: With dead ends: 66943 [2022-11-25 23:51:47,778 INFO L226 Difference]: Without dead ends: 33494 [2022-11-25 23:51:47,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:51:47,838 INFO L413 NwaCegarLoop]: 1407 mSDtfsCounter, 1 mSDsluCounter, 5604 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7011 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:47,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7011 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1027 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 23:51:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33494 states. [2022-11-25 23:51:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33494 to 33494. [2022-11-25 23:51:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33494 states, 22914 states have (on average 1.3739198743126473) internal successors, (31482), 23210 states have internal predecessors, (31482), 7477 states have call successors, (7477), 3047 states have call predecessors, (7477), 3102 states have return successors, (7687), 7334 states have call predecessors, (7687), 7476 states have call successors, (7687) [2022-11-25 23:51:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33494 states to 33494 states and 46646 transitions. [2022-11-25 23:51:49,187 INFO L78 Accepts]: Start accepts. Automaton has 33494 states and 46646 transitions. Word has length 366 [2022-11-25 23:51:49,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:49,187 INFO L495 AbstractCegarLoop]: Abstraction has 33494 states and 46646 transitions. [2022-11-25 23:51:49,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-25 23:51:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 33494 states and 46646 transitions. [2022-11-25 23:51:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-25 23:51:49,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:49,201 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:49,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:51:49,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:51:49,416 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:51:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:49,416 INFO L85 PathProgramCache]: Analyzing trace with hash 318253814, now seen corresponding path program 1 times [2022-11-25 23:51:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:49,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055342734] [2022-11-25 23:51:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:49,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1618 trivial. 0 not checked. [2022-11-25 23:51:56,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:56,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055342734] [2022-11-25 23:51:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055342734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:51:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057059247] [2022-11-25 23:51:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:56,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:51:56,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:56,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:51:56,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:52:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:02,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 10902 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:52:02,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2022-11-25 23:52:02,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:02,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057059247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:02,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:02,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-25 23:52:02,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611615575] [2022-11-25 23:52:02,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:02,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:02,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:02,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:02,518 INFO L87 Difference]: Start difference. First operand 33494 states and 46646 transitions. Second operand has 6 states, 4 states have (on average 26.25) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 23:52:04,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:52:07,028 WARN L539 Checker$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 23:52:11,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:52:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:15,815 INFO L93 Difference]: Finished difference Result 67064 states and 93530 transitions. [2022-11-25 23:52:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:52:15,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 26.25) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 380 [2022-11-25 23:52:15,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:15,964 INFO L225 Difference]: With dead ends: 67064 [2022-11-25 23:52:15,964 INFO L226 Difference]: Without dead ends: 33550 [2022-11-25 23:52:16,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:52:16,051 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 3 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6954 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:16,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6954 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1077 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2022-11-25 23:52:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33550 states. [2022-11-25 23:52:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33550 to 33550. [2022-11-25 23:52:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33550 states, 22970 states have (on average 1.3730082716586853) internal successors, (31538), 23266 states have internal predecessors, (31538), 7477 states have call successors, (7477), 3047 states have call predecessors, (7477), 3102 states have return successors, (7687), 7334 states have call predecessors, (7687), 7476 states have call successors, (7687) [2022-11-25 23:52:17,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33550 states to 33550 states and 46702 transitions. [2022-11-25 23:52:17,941 INFO L78 Accepts]: Start accepts. Automaton has 33550 states and 46702 transitions. Word has length 380 [2022-11-25 23:52:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:17,942 INFO L495 AbstractCegarLoop]: Abstraction has 33550 states and 46702 transitions. [2022-11-25 23:52:17,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 26.25) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 23:52:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 33550 states and 46702 transitions. [2022-11-25 23:52:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-11-25 23:52:17,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:17,976 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:18,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 23:52:18,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 23:52:18,188 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:52:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:18,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1058394430, now seen corresponding path program 1 times [2022-11-25 23:52:18,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:18,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714622788] [2022-11-25 23:52:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:18,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2022-11-25 23:52:25,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714622788] [2022-11-25 23:52:25,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714622788] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089332705] [2022-11-25 23:52:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:25,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:25,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:25,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:25,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06048d8-b7c2-478b-8c03-a1ff721e28c6/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:52:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:29,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 11022 conjuncts, 226 conjunts are in the unsatisfiable core [2022-11-25 23:52:29,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:30,426 INFO L321 Elim1Store]: treesize reduction 530, result has 14.9 percent of original size [2022-11-25 23:52:30,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 4185955 treesize of output 4152071 [2022-11-25 23:52:49,595 WARN L233 SmtUtils]: Spent 19.16s on a formula simplification that was a NOOP. DAG size: 1556 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 23:55:37,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:37,972 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31953 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31953))))) is different from true [2022-11-25 23:55:37,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:38,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:38,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:38,230 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| 1))) is different from true [2022-11-25 23:55:38,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,462 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:38,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:38,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:38,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,759 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:38,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:38,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:38,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:38,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,054 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:39,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:39,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:39,276 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31957 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31957))))) is different from true [2022-11-25 23:55:39,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:39,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:39,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:39,538 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (exists ((v_ArrVal_31958 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31958))) (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|))) is different from true [2022-11-25 23:55:39,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:39,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:39,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:39,807 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31959 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31959))))) is different from true [2022-11-25 23:55:39,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:39,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:40,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:40,069 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31960 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31960))))) is different from true [2022-11-25 23:55:40,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:40,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:40,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:40,357 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (exists ((v_ArrVal_31961 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31961))) (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|))) is different from true [2022-11-25 23:55:40,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:40,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:40,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:40,601 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31962 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31962))))) is different from true [2022-11-25 23:55:40,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:40,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:40,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:40,850 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (exists ((v_ArrVal_31963 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31963))) (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|))) is different from true [2022-11-25 23:55:40,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:40,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:41,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:41,103 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31964 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31964))))) is different from true [2022-11-25 23:55:41,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:41,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:41,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:41,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,436 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:41,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:41,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:41,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:41,768 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:41,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:43,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:55:43,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:44,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:44,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:44,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:45,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:45,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:45,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:45,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:46,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:46,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:47,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:47,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:47,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:47,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:48,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:48,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:48,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:48,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:48,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:48,789 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_31978 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_31978))) is different from true [2022-11-25 23:55:48,817 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (exists ((v_ArrVal_31978 (Array Int Int)) (|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| v_ArrVal_31978)) (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_65| |ldv_init_zalloc_#t~malloc32.base|))) (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31977 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31977))))) is different from true [2022-11-25 23:55:48,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:48,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:48,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:48,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:48,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:49,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:49,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:49,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:49,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:49,604 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_31980 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_31980) |c_#memory_int|)) is different from true [2022-11-25 23:55:49,631 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| Int) (v_ArrVal_31980 (Array Int Int))) (and (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| |ldv_init_zalloc_#t~malloc32.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_66| v_ArrVal_31980) |c_#memory_int|))) (exists ((v_ArrVal_31977 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31977))))) is different from true [2022-11-25 23:55:49,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:49,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:49,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:49,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:49,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:49,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:49,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:55:49,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:55:49,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:49,982 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_31982 (Array Int Int))) (= (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_31982) |c_#memory_int|)) is different from true [2022-11-25 23:55:50,009 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_init_zalloc_#t~malloc32.base| Int)) (and (< |ldv_init_zalloc_#t~malloc32.base| |c_#StackHeapBarrier|) (exists ((v_ArrVal_31977 Int)) (= |c_#valid| (store |c_old(#valid)| |ldv_init_zalloc_#t~malloc32.base| v_ArrVal_31977))) (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| Int) (v_ArrVal_31982 (Array Int Int))) (and (<= |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| |ldv_init_zalloc_#t~malloc32.base|) (= (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_67| v_ArrVal_31982) |c_#memory_int|))))) is different from true [2022-11-25 23:55:50,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:50,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:50,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:50,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:50,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:50,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:55:50,535 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:55:50,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-25 23:55:50,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 23:55:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 374 proven. 242 refuted. 6 times theorem prover too weak. 486 trivial. 637 not checked. [2022-11-25 23:55:51,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:55:52,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089332705] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:55:52,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1171848411] [2022-11-25 23:55:52,056 INFO L159 IcfgInterpreter]: Started Sifa with 146 locations of interest [2022-11-25 23:55:52,057 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:55:52,063 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:55:52,073 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:55:52,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:56:18,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-11-25 23:56:20,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-11-25 23:56:22,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-11-25 23:56:26,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-11-25 23:56:27,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-11-25 23:56:30,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:32,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:39,694 INFO L217 Elim1Store]: Index analysis took 9226 ms