./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh --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 71101d2b79b59e25da9ba6ac44f6028cc3034769032ea6dc2bebcfbbe6cd49e1 --- 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-2329fc7 [2022-12-14 15:40:03,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:40:03,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:40:03,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:40:03,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:40:03,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:40:03,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:40:03,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:40:03,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:40:03,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:40:03,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:40:03,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:40:03,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:40:03,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:40:03,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:40:03,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:40:03,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:40:03,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:40:03,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:40:03,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:40:03,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:40:03,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:40:03,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:40:03,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:40:03,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:40:03,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:40:03,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:40:03,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:40:03,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:40:03,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:40:03,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:40:03,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:40:03,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:40:03,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:40:03,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:40:03,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:40:03,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:40:03,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:40:03,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:40:03,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:40:03,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:40:03,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:40:03,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:40:03,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:40:03,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:40:03,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:40:03,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:40:03,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:40:03,871 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:40:03,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:40:03,871 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:40:03,871 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:40:03,871 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:40:03,872 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:40:03,872 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:40:03,872 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:40:03,872 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:40:03,872 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:40:03,872 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:40:03,873 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:40:03,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:40:03,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:40:03,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:40:03,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:40:03,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:40:03,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:40:03,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:40:03,876 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_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71101d2b79b59e25da9ba6ac44f6028cc3034769032ea6dc2bebcfbbe6cd49e1 [2022-12-14 15:40:04,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:40:04,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:40:04,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:40:04,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:40:04,063 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:40:04,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-12-14 15:40:06,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:40:07,051 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:40:07,052 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-12-14 15:40:07,080 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/data/ee4fd7319/ee670f8a528f4d6dab753286556d9e85/FLAG23e0d0d6f [2022-12-14 15:40:07,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/data/ee4fd7319/ee670f8a528f4d6dab753286556d9e85 [2022-12-14 15:40:07,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:40:07,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:40:07,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:40:07,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:40:07,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:40:07,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:40:07" (1/1) ... [2022-12-14 15:40:07,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de007ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:07, skipping insertion in model container [2022-12-14 15:40:07,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:40:07" (1/1) ... [2022-12-14 15:40:07,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:40:07,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:40:07,659 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:40:07,664 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:40:07,678 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 15:40:07,742 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:40:07,789 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:40:07,824 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:07,830 WARN L611 FunctionHandler]: implicit declaration of function ldv_assume [2022-12-14 15:40:07,861 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 15:40:07,862 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 15:40:07,863 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 15:40:07,863 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 15:40:07,868 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 15:40:07,869 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 15:40:07,870 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 15:40:07,870 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 15:40:07,916 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:40:07,974 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_34e0e538-2f98-45df-963c-72340bcaa500/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161338,161351] [2022-12-14 15:40:08,006 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-12-14 15:40:08,010 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:40:08,040 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,049 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:40:08,073 WARN L623 FunctionHandler]: Unknown extern function ptp_find_pin [2022-12-14 15:40:08,074 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,075 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,076 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,078 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,084 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,084 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,088 WARN L623 FunctionHandler]: Unknown extern function ns_to_timespec [2022-12-14 15:40:08,088 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,089 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,092 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,093 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,098 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,098 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,103 WARN L623 FunctionHandler]: Unknown extern function ptp_find_pin [2022-12-14 15:40:08,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,112 WARN L623 FunctionHandler]: Unknown extern function dev_mc_add [2022-12-14 15:40:08,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,113 WARN L623 FunctionHandler]: Unknown extern function dev_mc_del [2022-12-14 15:40:08,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,117 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:40:08,132 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,137 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,138 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,141 WARN L623 FunctionHandler]: Unknown extern function ns_to_timespec [2022-12-14 15:40:08,142 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,151 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_event [2022-12-14 15:40:08,155 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,157 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 15:40:08,162 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 15:40:08,163 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,181 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,183 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:40:08,183 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 15:40:08,183 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 15:40:08,183 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 15:40:08,184 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,184 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,184 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,188 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:40:08,188 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:40:08,189 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:40:08,190 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-12-14 15:40:08,197 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,201 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,202 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,203 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,206 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,211 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:40:08,211 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:40:08,212 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:40:08,213 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_register [2022-12-14 15:40:08,214 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,217 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:40:08,218 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,219 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_unregister [2022-12-14 15:40:08,220 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,239 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,239 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,241 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,242 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,246 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 15:40:08,250 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,251 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 15:40:08,251 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,254 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_index [2022-12-14 15:40:08,258 WARN L623 FunctionHandler]: Unknown extern function phy_driver_register [2022-12-14 15:40:08,261 WARN L623 FunctionHandler]: Unknown extern function phy_driver_unregister [2022-12-14 15:40:08,273 WARN L623 FunctionHandler]: Unknown extern function genphy_read_status [2022-12-14 15:40:08,274 WARN L623 FunctionHandler]: Unknown extern function genphy_config_aneg [2022-12-14 15:40:08,274 WARN L623 FunctionHandler]: Unknown extern function genphy_config_aneg [2022-12-14 15:40:08,276 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,276 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,277 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,277 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,277 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,277 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,278 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,278 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,278 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,279 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free_int [2022-12-14 15:40:08,279 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,279 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,310 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,318 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:08,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:08,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:40:08,337 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:40:08,403 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:40:08,404 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 15:40:08,404 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 15:40:08,406 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:40:08,407 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:40:08,408 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:08,408 WARN L611 FunctionHandler]: implicit declaration of function ldv_assume [2022-12-14 15:40:08,409 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 15:40:08,409 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 15:40:08,410 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 15:40:08,410 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 15:40:08,410 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 15:40:08,411 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 15:40:08,411 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 15:40:08,411 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 15:40:08,413 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:40:08,416 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_34e0e538-2f98-45df-963c-72340bcaa500/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161338,161351] [2022-12-14 15:40:08,416 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-12-14 15:40:08,417 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:40:08,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,420 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:40:08,424 WARN L623 FunctionHandler]: Unknown extern function ptp_find_pin [2022-12-14 15:40:08,425 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,425 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,426 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,426 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,427 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,428 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,428 WARN L623 FunctionHandler]: Unknown extern function ns_to_timespec [2022-12-14 15:40:08,428 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,429 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,429 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,430 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,431 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,431 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,432 WARN L623 FunctionHandler]: Unknown extern function ptp_find_pin [2022-12-14 15:40:08,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,435 WARN L623 FunctionHandler]: Unknown extern function dev_mc_add [2022-12-14 15:40:08,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,435 WARN L623 FunctionHandler]: Unknown extern function dev_mc_del [2022-12-14 15:40:08,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,436 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:40:08,438 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,441 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,441 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,453 WARN L623 FunctionHandler]: Unknown extern function ns_to_timespec [2022-12-14 15:40:08,455 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,457 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_event [2022-12-14 15:40:08,458 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,460 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 15:40:08,463 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 15:40:08,463 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,469 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:40:08,470 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 15:40:08,470 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 15:40:08,470 WARN L623 FunctionHandler]: Unknown extern function mutex_destroy [2022-12-14 15:40:08,470 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 15:40:08,470 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,471 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,471 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,472 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:40:08,472 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 15:40:08,473 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 15:40:08,476 WARN L623 FunctionHandler]: Unknown extern function get_device [2022-12-14 15:40:08,477 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,478 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,479 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,480 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,480 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,481 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:40:08,481 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:40:08,482 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:40:08,487 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_register [2022-12-14 15:40:08,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,489 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:40:08,490 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,494 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_unregister [2022-12-14 15:40:08,495 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:40:08,504 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 15:40:08,505 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:40:08,507 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 15:40:08,509 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 15:40:08,510 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,510 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 15:40:08,510 WARN L623 FunctionHandler]: Unknown extern function skb_complete_tx_timestamp [2022-12-14 15:40:08,511 WARN L623 FunctionHandler]: Unknown extern function ptp_clock_index [2022-12-14 15:40:08,512 WARN L623 FunctionHandler]: Unknown extern function phy_driver_register [2022-12-14 15:40:08,513 WARN L623 FunctionHandler]: Unknown extern function phy_driver_unregister [2022-12-14 15:40:08,516 WARN L623 FunctionHandler]: Unknown extern function genphy_read_status [2022-12-14 15:40:08,516 WARN L623 FunctionHandler]: Unknown extern function genphy_config_aneg [2022-12-14 15:40:08,517 WARN L623 FunctionHandler]: Unknown extern function genphy_config_aneg [2022-12-14 15:40:08,519 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,519 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,519 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,519 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,520 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,520 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,520 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,521 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,521 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,521 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free_int [2022-12-14 15:40:08,522 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,522 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-12-14 15:40:08,527 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-12-14 15:40:08,530 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:08,531 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:40:08,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:40:08,569 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:40:08,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08 WrapperNode [2022-12-14 15:40:08,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:40:08,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:40:08,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:40:08,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:40:08,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,693 INFO L138 Inliner]: procedures = 185, calls = 853, calls flagged for inlining = 75, calls inlined = 64, statements flattened = 2129 [2022-12-14 15:40:08,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:40:08,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:40:08,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:40:08,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:40:08,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:40:08,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:40:08,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:40:08,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:40:08,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (1/1) ... [2022-12-14 15:40:08,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:40:08,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:08,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:40:08,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:40:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2022-12-14 15:40:08,864 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2022-12-14 15:40:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 15:40:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2022-12-14 15:40:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 15:40:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2022-12-14 15:40:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:40:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:40:08,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:40:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-12-14 15:40:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-12-14 15:40:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2022-12-14 15:40:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2022-12-14 15:40:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-12-14 15:40:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-12-14 15:40:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2022-12-14 15:40:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2022-12-14 15:40:08,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:40:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-12-14 15:40:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2022-12-14 15:40:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2022-12-14 15:40:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2022-12-14 15:40:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-12-14 15:40:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-12-14 15:40:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:40:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 15:40:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:40:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:40:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2022-12-14 15:40:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 15:40:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-14 15:40:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2022-12-14 15:40:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:40:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 15:40:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 15:40:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 15:40:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 15:40:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-12-14 15:40:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 15:40:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2022-12-14 15:40:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2022-12-14 15:40:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2022-12-14 15:40:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2022-12-14 15:40:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2022-12-14 15:40:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:40:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2022-12-14 15:40:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2022-12-14 15:40:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 15:40:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 15:40:09,221 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:40:09,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:40:09,524 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:40:11,095 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:40:11,407 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:40:11,407 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-14 15:40:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:40:11 BoogieIcfgContainer [2022-12-14 15:40:11,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:40:11,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:40:11,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:40:11,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:40:11,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:40:07" (1/3) ... [2022-12-14 15:40:11,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e77cd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:40:11, skipping insertion in model container [2022-12-14 15:40:11,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:08" (2/3) ... [2022-12-14 15:40:11,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e77cd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:40:11, skipping insertion in model container [2022-12-14 15:40:11,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:40:11" (3/3) ... [2022-12-14 15:40:11,417 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2022-12-14 15:40:11,432 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:40:11,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:40:11,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:40:11,492 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;@619dfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:40:11,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:40:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 640 states, 384 states have (on average 1.34375) internal successors, (516), 401 states have internal predecessors, (516), 194 states have call successors, (194), 61 states have call predecessors, (194), 60 states have return successors, (191), 190 states have call predecessors, (191), 191 states have call successors, (191) [2022-12-14 15:40:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 15:40:11,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:11,510 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:40:11,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:11,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1604540956, now seen corresponding path program 1 times [2022-12-14 15:40:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:11,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053121424] [2022-12-14 15:40:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:11,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:40:11,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:11,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053121424] [2022-12-14 15:40:11,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053121424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:11,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:11,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:40:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562426546] [2022-12-14 15:40:11,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:11,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:40:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:11,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:40:11,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:40:11,895 INFO L87 Difference]: Start difference. First operand has 640 states, 384 states have (on average 1.34375) internal successors, (516), 401 states have internal predecessors, (516), 194 states have call successors, (194), 61 states have call predecessors, (194), 60 states have return successors, (191), 190 states have call predecessors, (191), 191 states have call successors, (191) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:40:13,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:13,072 INFO L93 Difference]: Finished difference Result 1905 states and 2709 transitions. [2022-12-14 15:40:13,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:40:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-12-14 15:40:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:13,094 INFO L225 Difference]: With dead ends: 1905 [2022-12-14 15:40:13,094 INFO L226 Difference]: Without dead ends: 1237 [2022-12-14 15:40:13,102 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 [2022-12-14 15:40:13,105 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 882 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:13,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 2698 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:40:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2022-12-14 15:40:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1233. [2022-12-14 15:40:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 743 states have (on average 1.3257065948855988) internal successors, (985), 767 states have internal predecessors, (985), 372 states have call successors, (372), 118 states have call predecessors, (372), 117 states have return successors, (379), 369 states have call predecessors, (379), 371 states have call successors, (379) [2022-12-14 15:40:13,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1736 transitions. [2022-12-14 15:40:13,239 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1736 transitions. Word has length 26 [2022-12-14 15:40:13,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:13,239 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1736 transitions. [2022-12-14 15:40:13,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:40:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1736 transitions. [2022-12-14 15:40:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 15:40:13,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:13,249 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 15:40:13,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:40:13,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash -67072350, now seen corresponding path program 1 times [2022-12-14 15:40:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:13,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57568895] [2022-12-14 15:40:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:13,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:40:13,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57568895] [2022-12-14 15:40:13,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57568895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:13,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:13,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:40:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087279264] [2022-12-14 15:40:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:40:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:13,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:40:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:40:13,373 INFO L87 Difference]: Start difference. First operand 1233 states and 1736 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 15:40:13,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:13,939 INFO L93 Difference]: Finished difference Result 2537 states and 3562 transitions. [2022-12-14 15:40:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:40:13,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-12-14 15:40:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:13,948 INFO L225 Difference]: With dead ends: 2537 [2022-12-14 15:40:13,948 INFO L226 Difference]: Without dead ends: 1309 [2022-12-14 15:40:13,953 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 [2022-12-14 15:40:13,954 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 75 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:13,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1498 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:40:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-12-14 15:40:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1303. [2022-12-14 15:40:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 793 states have (on average 1.3278688524590163) internal successors, (1053), 818 states have internal predecessors, (1053), 383 states have call successors, (383), 127 states have call predecessors, (383), 126 states have return successors, (390), 379 states have call predecessors, (390), 382 states have call successors, (390) [2022-12-14 15:40:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1826 transitions. [2022-12-14 15:40:13,998 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1826 transitions. Word has length 66 [2022-12-14 15:40:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:13,999 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 1826 transitions. [2022-12-14 15:40:13,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 15:40:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1826 transitions. [2022-12-14 15:40:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 15:40:14,002 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:14,002 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-12-14 15:40:14,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:40:14,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:14,003 INFO L85 PathProgramCache]: Analyzing trace with hash -816282302, now seen corresponding path program 1 times [2022-12-14 15:40:14,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:14,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286291742] [2022-12-14 15:40:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 15:40:14,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:14,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286291742] [2022-12-14 15:40:14,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286291742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:14,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:14,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:40:14,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950438496] [2022-12-14 15:40:14,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:14,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:40:14,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:40:14,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:40:14,118 INFO L87 Difference]: Start difference. First operand 1303 states and 1826 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 15:40:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:14,861 INFO L93 Difference]: Finished difference Result 3525 states and 4908 transitions. [2022-12-14 15:40:14,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:40:14,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-12-14 15:40:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:14,872 INFO L225 Difference]: With dead ends: 3525 [2022-12-14 15:40:14,872 INFO L226 Difference]: Without dead ends: 2243 [2022-12-14 15:40:14,877 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 [2022-12-14 15:40:14,877 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 771 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:14,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1526 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 15:40:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2022-12-14 15:40:14,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2237. [2022-12-14 15:40:14,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 1371 states have (on average 1.3048869438366155) internal successors, (1789), 1407 states have internal predecessors, (1789), 632 states have call successors, (632), 234 states have call predecessors, (632), 233 states have return successors, (642), 625 states have call predecessors, (642), 631 states have call successors, (642) [2022-12-14 15:40:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3063 transitions. [2022-12-14 15:40:14,963 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3063 transitions. Word has length 87 [2022-12-14 15:40:14,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:14,964 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 3063 transitions. [2022-12-14 15:40:14,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 15:40:14,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3063 transitions. [2022-12-14 15:40:14,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 15:40:14,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:14,967 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-12-14 15:40:14,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:40:14,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:14,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:14,967 INFO L85 PathProgramCache]: Analyzing trace with hash -40010568, now seen corresponding path program 1 times [2022-12-14 15:40:14,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:14,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465403707] [2022-12-14 15:40:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 15:40:15,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:15,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465403707] [2022-12-14 15:40:15,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465403707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:15,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:15,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:40:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889464273] [2022-12-14 15:40:15,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:15,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:40:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:40:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:40:15,048 INFO L87 Difference]: Start difference. First operand 2237 states and 3063 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-12-14 15:40:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:15,708 INFO L93 Difference]: Finished difference Result 3388 states and 4650 transitions. [2022-12-14 15:40:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:40:15,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2022-12-14 15:40:15,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:15,718 INFO L225 Difference]: With dead ends: 3388 [2022-12-14 15:40:15,718 INFO L226 Difference]: Without dead ends: 2245 [2022-12-14 15:40:15,721 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 [2022-12-14 15:40:15,721 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 4 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:15,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1524 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 15:40:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2022-12-14 15:40:15,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2245. [2022-12-14 15:40:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1377 states have (on average 1.3035584604212056) internal successors, (1795), 1415 states have internal predecessors, (1795), 632 states have call successors, (632), 234 states have call predecessors, (632), 235 states have return successors, (644), 625 states have call predecessors, (644), 631 states have call successors, (644) [2022-12-14 15:40:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3071 transitions. [2022-12-14 15:40:15,791 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3071 transitions. Word has length 87 [2022-12-14 15:40:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:15,791 INFO L495 AbstractCegarLoop]: Abstraction has 2245 states and 3071 transitions. [2022-12-14 15:40:15,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-12-14 15:40:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3071 transitions. [2022-12-14 15:40:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 15:40:15,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:15,794 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-12-14 15:40:15,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:40:15,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:15,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1643328818, now seen corresponding path program 1 times [2022-12-14 15:40:15,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:15,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263456321] [2022-12-14 15:40:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:15,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 15:40:16,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:16,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263456321] [2022-12-14 15:40:16,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263456321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:16,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:16,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:40:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31575992] [2022-12-14 15:40:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:40:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:16,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:40:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:40:16,122 INFO L87 Difference]: Start difference. First operand 2245 states and 3071 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 15:40:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:20,111 INFO L93 Difference]: Finished difference Result 4607 states and 6329 transitions. [2022-12-14 15:40:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:40:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2022-12-14 15:40:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:20,122 INFO L225 Difference]: With dead ends: 4607 [2022-12-14 15:40:20,122 INFO L226 Difference]: Without dead ends: 2383 [2022-12-14 15:40:20,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:40:20,127 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 1989 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 1323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 5351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1323 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:20,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 1547 Invalid, 5351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1323 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 15:40:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-12-14 15:40:20,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2339. [2022-12-14 15:40:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 1433 states have (on average 1.2986741102581996) internal successors, (1861), 1475 states have internal predecessors, (1861), 668 states have call successors, (668), 234 states have call predecessors, (668), 237 states have return successors, (681), 661 states have call predecessors, (681), 667 states have call successors, (681) [2022-12-14 15:40:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3210 transitions. [2022-12-14 15:40:20,212 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3210 transitions. Word has length 88 [2022-12-14 15:40:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:20,212 INFO L495 AbstractCegarLoop]: Abstraction has 2339 states and 3210 transitions. [2022-12-14 15:40:20,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 15:40:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3210 transitions. [2022-12-14 15:40:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 15:40:20,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:20,216 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2022-12-14 15:40:20,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:40:20,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash 88488815, now seen corresponding path program 1 times [2022-12-14 15:40:20,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:20,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688551831] [2022-12-14 15:40:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 15:40:20,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:20,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688551831] [2022-12-14 15:40:20,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688551831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:20,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:20,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:40:20,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71621711] [2022-12-14 15:40:20,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:20,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:40:20,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:20,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:40:20,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:40:20,454 INFO L87 Difference]: Start difference. First operand 2339 states and 3210 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:40:21,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:21,389 INFO L93 Difference]: Finished difference Result 4683 states and 6465 transitions. [2022-12-14 15:40:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:40:21,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-12-14 15:40:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:21,397 INFO L225 Difference]: With dead ends: 4683 [2022-12-14 15:40:21,398 INFO L226 Difference]: Without dead ends: 2365 [2022-12-14 15:40:21,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:40:21,404 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 2 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:21,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3046 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:40:21,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-12-14 15:40:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2355. [2022-12-14 15:40:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 1445 states have (on average 1.2961937716262977) internal successors, (1873), 1487 states have internal predecessors, (1873), 668 states have call successors, (668), 234 states have call predecessors, (668), 241 states have return successors, (689), 665 states have call predecessors, (689), 667 states have call successors, (689) [2022-12-14 15:40:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3230 transitions. [2022-12-14 15:40:21,510 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3230 transitions. Word has length 110 [2022-12-14 15:40:21,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:21,510 INFO L495 AbstractCegarLoop]: Abstraction has 2355 states and 3230 transitions. [2022-12-14 15:40:21,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 15:40:21,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3230 transitions. [2022-12-14 15:40:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-14 15:40:21,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:21,516 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 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] [2022-12-14 15:40:21,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:40:21,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:21,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2094985524, now seen corresponding path program 1 times [2022-12-14 15:40:21,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:21,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709537948] [2022-12-14 15:40:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:21,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 15:40:21,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:21,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709537948] [2022-12-14 15:40:21,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709537948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:21,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:21,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:40:21,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015777896] [2022-12-14 15:40:21,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:21,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:40:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:21,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:40:21,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:40:21,692 INFO L87 Difference]: Start difference. First operand 2355 states and 3230 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:40:22,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:22,094 INFO L93 Difference]: Finished difference Result 4689 states and 6430 transitions. [2022-12-14 15:40:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:40:22,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-12-14 15:40:22,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:22,105 INFO L225 Difference]: With dead ends: 4689 [2022-12-14 15:40:22,105 INFO L226 Difference]: Without dead ends: 2342 [2022-12-14 15:40:22,113 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 [2022-12-14 15:40:22,113 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 844 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:22,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 829 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:40:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2022-12-14 15:40:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2342. [2022-12-14 15:40:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 1434 states have (on average 1.2852161785216178) internal successors, (1843), 1476 states have internal predecessors, (1843), 666 states have call successors, (666), 234 states have call predecessors, (666), 241 states have return successors, (685), 663 states have call predecessors, (685), 665 states have call successors, (685) [2022-12-14 15:40:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3194 transitions. [2022-12-14 15:40:22,246 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3194 transitions. Word has length 124 [2022-12-14 15:40:22,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:22,246 INFO L495 AbstractCegarLoop]: Abstraction has 2342 states and 3194 transitions. [2022-12-14 15:40:22,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 15:40:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3194 transitions. [2022-12-14 15:40:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 15:40:22,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:22,253 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:40:22,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:40:22,253 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash 539013649, now seen corresponding path program 1 times [2022-12-14 15:40:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:22,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674031507] [2022-12-14 15:40:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:22,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-14 15:40:22,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:22,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674031507] [2022-12-14 15:40:22,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674031507] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:40:22,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940144964] [2022-12-14 15:40:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:22,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:22,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:22,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:40:22,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:40:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:23,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 15:40:23,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:40:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:40:23,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:40:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-14 15:40:24,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940144964] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 15:40:24,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 15:40:24,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 10] total 24 [2022-12-14 15:40:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838937884] [2022-12-14 15:40:24,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:24,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:40:24,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:24,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:40:24,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2022-12-14 15:40:24,042 INFO L87 Difference]: Start difference. First operand 2342 states and 3194 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2022-12-14 15:40:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:29,410 INFO L93 Difference]: Finished difference Result 5446 states and 7582 transitions. [2022-12-14 15:40:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:40:29,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 130 [2022-12-14 15:40:29,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:29,422 INFO L225 Difference]: With dead ends: 5446 [2022-12-14 15:40:29,422 INFO L226 Difference]: Without dead ends: 4195 [2022-12-14 15:40:29,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-12-14 15:40:29,425 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 3433 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 5812 mSolverCounterSat, 2639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 8451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2639 IncrementalHoareTripleChecker+Valid, 5812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:29,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3558 Valid, 2439 Invalid, 8451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2639 Valid, 5812 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 15:40:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2022-12-14 15:40:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 3566. [2022-12-14 15:40:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 2179 states have (on average 1.2849931161083066) internal successors, (2800), 2250 states have internal predecessors, (2800), 1016 states have call successors, (1016), 347 states have call predecessors, (1016), 370 states have return successors, (1072), 1017 states have call predecessors, (1072), 1015 states have call successors, (1072) [2022-12-14 15:40:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4888 transitions. [2022-12-14 15:40:29,592 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4888 transitions. Word has length 130 [2022-12-14 15:40:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:29,593 INFO L495 AbstractCegarLoop]: Abstraction has 3566 states and 4888 transitions. [2022-12-14 15:40:29,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 6 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2022-12-14 15:40:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4888 transitions. [2022-12-14 15:40:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 15:40:29,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:29,597 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:40:29,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:40:29,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:29,798 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:29,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:29,798 INFO L85 PathProgramCache]: Analyzing trace with hash 330946071, now seen corresponding path program 1 times [2022-12-14 15:40:29,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:29,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153348863] [2022-12-14 15:40:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:29,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 15:40:29,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:29,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153348863] [2022-12-14 15:40:29,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153348863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:29,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:29,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:40:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105801241] [2022-12-14 15:40:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:29,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:40:29,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:40:29,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:40:29,954 INFO L87 Difference]: Start difference. First operand 3566 states and 4888 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 15:40:30,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:30,868 INFO L93 Difference]: Finished difference Result 6063 states and 8349 transitions. [2022-12-14 15:40:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:40:30,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2022-12-14 15:40:30,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:30,884 INFO L225 Difference]: With dead ends: 6063 [2022-12-14 15:40:30,884 INFO L226 Difference]: Without dead ends: 3594 [2022-12-14 15:40:30,890 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 [2022-12-14 15:40:30,890 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 10 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:30,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2284 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 15:40:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2022-12-14 15:40:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3576. [2022-12-14 15:40:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 2189 states have (on average 1.2864321608040201) internal successors, (2816), 2260 states have internal predecessors, (2816), 1016 states have call successors, (1016), 347 states have call predecessors, (1016), 370 states have return successors, (1072), 1017 states have call predecessors, (1072), 1015 states have call successors, (1072) [2022-12-14 15:40:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 4904 transitions. [2022-12-14 15:40:31,059 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 4904 transitions. Word has length 131 [2022-12-14 15:40:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:31,059 INFO L495 AbstractCegarLoop]: Abstraction has 3576 states and 4904 transitions. [2022-12-14 15:40:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 15:40:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 4904 transitions. [2022-12-14 15:40:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 15:40:31,064 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:31,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 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] [2022-12-14 15:40:31,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:40:31,064 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:31,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1393044272, now seen corresponding path program 1 times [2022-12-14 15:40:31,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:31,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031769082] [2022-12-14 15:40:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 13 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 15:40:35,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:35,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031769082] [2022-12-14 15:40:35,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031769082] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:40:35,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335710050] [2022-12-14 15:40:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:35,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:35,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:40:35,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34e0e538-2f98-45df-963c-72340bcaa500/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:40:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:35,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-14 15:40:35,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:40:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-14 15:40:36,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:40:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-14 15:40:37,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335710050] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:40:37,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1272792403] [2022-12-14 15:40:37,100 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2022-12-14 15:40:37,100 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:40:37,102 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:40:37,106 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:40:37,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:40:37,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 462 treesize of output 376 [2022-12-14 15:40:37,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 370 [2022-12-14 15:40:37,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 15:40:38,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 15:40:38,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 12 treesize of output 9 [2022-12-14 15:40:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:38,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 51 select indices, 51 select index equivalence classes, 152 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 154 [2022-12-14 15:40:39,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:39,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 51 select indices, 51 select index equivalence classes, 152 disjoint index pairs (out of 1275 index pairs), introduced 51 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 154 [2022-12-14 15:40:40,983 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 [2022-12-14 15:40:40,997 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 [2022-12-14 15:40:41,018 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 6 treesize of output 4 [2022-12-14 15:40:41,354 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 [2022-12-14 15:40:41,366 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 [2022-12-14 15:40:41,380 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 6 treesize of output 4 [2022-12-14 15:40:45,396 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:40:45,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 15:40:45,443 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 15:40:45,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-12-14 15:40:45,603 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 15 treesize of output 11 [2022-12-14 15:40:45,608 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 23 treesize of output 1 [2022-12-14 15:40:45,614 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 15 treesize of output 11 [2022-12-14 15:40:45,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:40:45,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:40:45,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:45,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:45,787 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:45,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 148 [2022-12-14 15:40:45,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:45,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:45,856 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:45,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 153 [2022-12-14 15:40:45,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:45,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:45,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:45,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:45,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 155 treesize of output 181 [2022-12-14 15:40:49,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:40:49,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:49,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:49,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 148 [2022-12-14 15:40:49,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:49,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:49,396 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:49,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 153 [2022-12-14 15:40:49,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:40:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:49,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:49,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:40:49,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 155 treesize of output 181 [2022-12-14 15:40:52,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:40:53,222 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 48240 conjuctions. This might take some time...