./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V --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 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:55:37,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:55:37,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:55:37,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:55:37,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:55:37,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:55:37,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:55:37,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:55:37,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:55:37,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:55:37,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:55:37,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:55:37,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:55:37,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:55:37,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:55:37,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:55:37,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:55:37,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:55:37,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:55:37,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:55:37,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:55:37,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:55:37,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:55:37,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:55:37,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:55:37,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:55:37,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:55:37,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:55:37,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:55:37,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:55:37,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:55:37,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:55:37,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:55:37,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:55:37,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:55:37,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:55:37,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:55:37,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:55:37,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:55:37,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:55:37,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:55:37,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:55:37,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:55:37,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:55:37,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:55:37,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:55:37,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:55:37,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:55:37,808 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:55:37,808 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:55:37,808 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:55:37,808 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:55:37,809 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:55:37,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:55:37,810 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:55:37,810 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:55:37,810 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:55:37,811 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:55:37,811 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:55:37,811 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:55:37,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:55:37,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:55:37,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:55:37,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:55:37,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:55:37,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:55:37,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:55:37,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:55:37,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:55:37,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:55:37,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:55:37,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:55:37,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:55:37,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:55:37,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:55:37,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:55:37,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:55:37,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:55:37,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:55:37,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:55:37,819 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 [2021-11-23 03:55:38,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:55:38,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:55:38,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:55:38,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:55:38,166 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:55:38,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-23 03:55:38,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/data/6d55195e7/dcd2a36ef9d548438a089df48ab5bf67/FLAGeb18bdcdd [2021-11-23 03:55:39,722 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:55:39,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-23 03:55:39,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/data/6d55195e7/dcd2a36ef9d548438a089df48ab5bf67/FLAGeb18bdcdd [2021-11-23 03:55:40,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/data/6d55195e7/dcd2a36ef9d548438a089df48ab5bf67 [2021-11-23 03:55:40,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:55:40,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:55:40,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:55:40,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:55:40,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:55:40,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:40" (1/1) ... [2021-11-23 03:55:40,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d47e304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:40, skipping insertion in model container [2021-11-23 03:55:40,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:40" (1/1) ... [2021-11-23 03:55:40,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:55:40,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:55:50,456 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2021-11-23 03:55:50,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2021-11-23 03:55:50,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2021-11-23 03:55:50,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2021-11-23 03:55:50,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:55:50,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:55:51,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2021-11-23 03:55:51,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2021-11-23 03:55:51,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2021-11-23 03:55:51,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2021-11-23 03:55:51,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:55:52,156 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:55:52,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52 WrapperNode [2021-11-23 03:55:52,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:55:52,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:55:52,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:55:52,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:55:52,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:52,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:53,192 INFO L137 Inliner]: procedures = 581, calls = 10779, calls flagged for inlining = 348, calls inlined = 340, statements flattened = 25810 [2021-11-23 03:55:53,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:55:53,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:55:53,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:55:53,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:55:53,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:53,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:53,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:53,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:54,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:54,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:54,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:54,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:55:54,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:55:54,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:55:54,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:55:54,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (1/1) ... [2021-11-23 03:55:54,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:55:54,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:55:54,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:55:54,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c3a91c5-e6fa-4df4-beab-7ba09fac330b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:55:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2021-11-23 03:55:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2021-11-23 03:55:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2021-11-23 03:55:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2021-11-23 03:55:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2021-11-23 03:55:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2021-11-23 03:55:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 03:55:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 03:55:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:55:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:55:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2021-11-23 03:55:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2021-11-23 03:55:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2021-11-23 03:55:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2021-11-23 03:55:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-23 03:55:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-23 03:55:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2021-11-23 03:55:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2021-11-23 03:55:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2021-11-23 03:55:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2021-11-23 03:55:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-23 03:55:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-23 03:55:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-23 03:55:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-23 03:55:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:55:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:55:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 03:55:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 03:55:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:55:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:55:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2021-11-23 03:55:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2021-11-23 03:55:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2021-11-23 03:55:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2021-11-23 03:55:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2021-11-23 03:55:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2021-11-23 03:55:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2021-11-23 03:55:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2021-11-23 03:55:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:55:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-23 03:55:54,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-23 03:55:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:55:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:55:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-23 03:55:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-23 03:55:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-23 03:55:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-23 03:55:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2021-11-23 03:55:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2021-11-23 03:55:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:55:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:55:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:55:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:55:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2021-11-23 03:55:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2021-11-23 03:55:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2021-11-23 03:55:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2021-11-23 03:55:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2021-11-23 03:55:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2021-11-23 03:55:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:55:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2021-11-23 03:55:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2021-11-23 03:55:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 03:55:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 03:55:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2021-11-23 03:55:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2021-11-23 03:55:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2021-11-23 03:55:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2021-11-23 03:55:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-23 03:55:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-23 03:55:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:55:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:55:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 03:55:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 03:55:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:55:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-23 03:55:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-23 03:55:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:55:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:55:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-23 03:55:54,794 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-23 03:55:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:55:54,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:55:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:55:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2021-11-23 03:55:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2021-11-23 03:55:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:55:54,795 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2021-11-23 03:55:54,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2021-11-23 03:55:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:55:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:55:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:55:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:55:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2021-11-23 03:55:54,796 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2021-11-23 03:55:54,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:55:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:55:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-23 03:55:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-23 03:55:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-23 03:55:54,797 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-23 03:55:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2021-11-23 03:55:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2021-11-23 03:55:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2021-11-23 03:55:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2021-11-23 03:55:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-23 03:55:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-23 03:55:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-23 03:55:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-23 03:55:54,801 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2021-11-23 03:55:54,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2021-11-23 03:55:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2021-11-23 03:55:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2021-11-23 03:55:54,803 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2021-11-23 03:55:54,803 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2021-11-23 03:55:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-23 03:55:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-23 03:55:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 03:55:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 03:55:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:55:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:55:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:55:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-23 03:55:54,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-23 03:55:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 03:55:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 03:55:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 03:55:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 03:55:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 03:55:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 03:55:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2021-11-23 03:55:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2021-11-23 03:55:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:55:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:55:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:55:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:55:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:55:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:55:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:55:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2021-11-23 03:55:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2021-11-23 03:55:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:55:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:55:54,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:55:54,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:55:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2021-11-23 03:55:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2021-11-23 03:55:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2021-11-23 03:55:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2021-11-23 03:55:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 03:55:54,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 03:55:54,814 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2021-11-23 03:55:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2021-11-23 03:55:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2021-11-23 03:55:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2021-11-23 03:55:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2021-11-23 03:55:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2021-11-23 03:55:54,815 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-23 03:55:54,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-23 03:55:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2021-11-23 03:55:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2021-11-23 03:55:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2021-11-23 03:55:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2021-11-23 03:55:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2021-11-23 03:55:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2021-11-23 03:55:54,816 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2021-11-23 03:55:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2021-11-23 03:55:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2021-11-23 03:55:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2021-11-23 03:55:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-23 03:55:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-23 03:55:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2021-11-23 03:55:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2021-11-23 03:55:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:55:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:55:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 03:55:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 03:55:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2021-11-23 03:55:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2021-11-23 03:55:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2021-11-23 03:55:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2021-11-23 03:55:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:55:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:55:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:55:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:55:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-11-23 03:55:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-11-23 03:55:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-23 03:55:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-23 03:55:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 03:55:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 03:55:54,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-23 03:55:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-23 03:55:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 03:55:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 03:55:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2021-11-23 03:55:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2021-11-23 03:55:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2021-11-23 03:55:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2021-11-23 03:55:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-23 03:55:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-23 03:55:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2021-11-23 03:55:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2021-11-23 03:55:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-23 03:55:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-23 03:55:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-23 03:55:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-23 03:55:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 03:55:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 03:55:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2021-11-23 03:55:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2021-11-23 03:55:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:55:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:55:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-23 03:55:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-23 03:55:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2021-11-23 03:55:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2021-11-23 03:55:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 03:55:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 03:55:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2021-11-23 03:55:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2021-11-23 03:55:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2021-11-23 03:55:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2021-11-23 03:55:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2021-11-23 03:55:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2021-11-23 03:55:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2021-11-23 03:55:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2021-11-23 03:55:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2021-11-23 03:55:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2021-11-23 03:55:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:55:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-23 03:55:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-23 03:55:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:55:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2021-11-23 03:55:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2021-11-23 03:55:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2021-11-23 03:55:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2021-11-23 03:55:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2021-11-23 03:55:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2021-11-23 03:55:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-23 03:55:54,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-23 03:55:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-23 03:55:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-23 03:55:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:55:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:55:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:55:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 03:55:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 03:55:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 03:55:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 03:55:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-23 03:55:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-23 03:55:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-23 03:55:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-23 03:55:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___6 [2021-11-23 03:55:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___6 [2021-11-23 03:55:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:55:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:55:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2021-11-23 03:55:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2021-11-23 03:55:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2021-11-23 03:55:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2021-11-23 03:55:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-11-23 03:55:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-11-23 03:55:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-23 03:55:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-23 03:55:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2021-11-23 03:55:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2021-11-23 03:55:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-23 03:55:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-23 03:55:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-23 03:55:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-23 03:55:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-23 03:55:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-23 03:55:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2021-11-23 03:55:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2021-11-23 03:55:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2021-11-23 03:55:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2021-11-23 03:55:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 03:55:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 03:55:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 03:55:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 03:55:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2021-11-23 03:55:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2021-11-23 03:55:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2021-11-23 03:55:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2021-11-23 03:55:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-23 03:55:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-23 03:55:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2021-11-23 03:55:54,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2021-11-23 03:55:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:55:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2021-11-23 03:55:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2021-11-23 03:55:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:55:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:55:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-23 03:55:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-23 03:55:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2021-11-23 03:55:54,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2021-11-23 03:55:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2021-11-23 03:55:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2021-11-23 03:55:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-23 03:55:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-23 03:55:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 03:55:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 03:55:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2021-11-23 03:55:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2021-11-23 03:55:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2021-11-23 03:55:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2021-11-23 03:55:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-23 03:55:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-23 03:55:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2021-11-23 03:55:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2021-11-23 03:55:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 03:55:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 03:55:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-23 03:55:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-23 03:55:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:55:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:55:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2021-11-23 03:55:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2021-11-23 03:55:54,844 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 03:55:54,844 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 03:55:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-23 03:55:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-23 03:55:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2021-11-23 03:55:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2021-11-23 03:55:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2021-11-23 03:55:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2021-11-23 03:55:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 03:55:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 03:55:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:55:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:55:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2021-11-23 03:55:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2021-11-23 03:55:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:55:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-23 03:55:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-23 03:55:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-23 03:55:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-23 03:55:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:55:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:55:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2021-11-23 03:55:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2021-11-23 03:55:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-23 03:55:54,847 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-23 03:55:57,088 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:55:57,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:56:01,363 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:58:04,247 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:58:04,669 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:58:14,971 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:58:14,972 INFO L301 CfgBuilder]: Removed 19 assume(true) statements. [2021-11-23 03:58:14,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:14 BoogieIcfgContainer [2021-11-23 03:58:14,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:58:14,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:58:14,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:58:14,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:58:14,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:55:40" (1/3) ... [2021-11-23 03:58:14,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d329194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:14, skipping insertion in model container [2021-11-23 03:58:14,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52" (2/3) ... [2021-11-23 03:58:14,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d329194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:14, skipping insertion in model container [2021-11-23 03:58:14,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:14" (3/3) ... [2021-11-23 03:58:14,991 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-23 03:58:14,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:58:14,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:58:15,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:58:15,088 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:58:15,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:58:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) [2021-11-23 03:58:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-23 03:58:15,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:58:15,278 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2021-11-23 03:58:15,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:58:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:58:15,333 INFO L85 PathProgramCache]: Analyzing trace with hash -302547200, now seen corresponding path program 1 times [2021-11-23 03:58:15,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:58:15,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964421593] [2021-11-23 03:58:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:58:15,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:58:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:58:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-23 03:58:17,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:58:17,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964421593] [2021-11-23 03:58:17,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964421593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:58:17,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:58:17,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:58:17,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982386062] [2021-11-23 03:58:17,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:58:17,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:58:17,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:58:17,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:58:17,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:58:17,124 INFO L87 Difference]: Start difference. First operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-23 03:58:20,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:23,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:25,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:28,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:31,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:33,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:35,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:37,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:40,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:41,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:43,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:45,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:48,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:58:50,366 INFO L93 Difference]: Finished difference Result 11521 states and 17773 transitions. [2021-11-23 03:58:50,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:58:50,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 293 [2021-11-23 03:58:50,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:58:50,478 INFO L225 Difference]: With dead ends: 11521 [2021-11-23 03:58:50,478 INFO L226 Difference]: Without dead ends: 6762 [2021-11-23 03:58:50,524 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:58:50,531 INFO L933 BasicCegarLoop]: 6627 mSDtfsCounter, 5695 mSDsluCounter, 5932 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 21 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5701 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:58:50,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5701 Valid, 11997 Invalid, 1200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1171 Invalid, 8 Unknown, 0 Unchecked, 32.6s Time] [2021-11-23 03:58:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2021-11-23 03:58:51,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6735. [2021-11-23 03:58:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 4302 states have (on average 1.3561134356113436) internal successors, (5834), 4433 states have internal predecessors, (5834), 2193 states have call successors, (2193), 239 states have call predecessors, (2193), 238 states have return successors, (2194), 2125 states have call predecessors, (2194), 2190 states have call successors, (2194) [2021-11-23 03:58:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 10221 transitions. [2021-11-23 03:58:51,592 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 10221 transitions. Word has length 293 [2021-11-23 03:58:51,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:58:51,596 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 10221 transitions. [2021-11-23 03:58:51,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-23 03:58:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 10221 transitions. [2021-11-23 03:58:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-23 03:58:51,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:58:51,613 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:58:51,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:58:51,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:58:51,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:58:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1149505727, now seen corresponding path program 1 times [2021-11-23 03:58:51,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:58:51,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375290742] [2021-11-23 03:58:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:58:51,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:58:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:58:52,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2021-11-23 03:58:52,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:58:52,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375290742] [2021-11-23 03:58:52,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375290742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:58:52,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:58:52,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:58:52,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398135469] [2021-11-23 03:58:52,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:58:52,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:58:52,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:58:52,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:58:52,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:58:52,564 INFO L87 Difference]: Start difference. First operand 6735 states and 10221 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 03:58:55,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:58:58,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:00,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:02,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:05,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:08,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:10,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:12,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:15,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:18,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:59:20,907 INFO L93 Difference]: Finished difference Result 19769 states and 30014 transitions. [2021-11-23 03:59:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:59:20,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 301 [2021-11-23 03:59:20,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:59:21,031 INFO L225 Difference]: With dead ends: 19769 [2021-11-23 03:59:21,031 INFO L226 Difference]: Without dead ends: 13089 [2021-11-23 03:59:21,075 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:59:21,076 INFO L933 BasicCegarLoop]: 5755 mSDtfsCounter, 4834 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 17 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4840 SdHoareTripleChecker+Valid, 10441 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:59:21,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4840 Valid, 10441 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1086 Invalid, 7 Unknown, 0 Unchecked, 27.9s Time] [2021-11-23 03:59:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13089 states. [2021-11-23 03:59:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13089 to 13053. [2021-11-23 03:59:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13053 states, 8353 states have (on average 1.3560397461989704) internal successors, (11327), 8618 states have internal predecessors, (11327), 4234 states have call successors, (4234), 466 states have call predecessors, (4234), 464 states have return successors, (4243), 4093 states have call predecessors, (4243), 4231 states have call successors, (4243) [2021-11-23 03:59:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13053 states to 13053 states and 19804 transitions. [2021-11-23 03:59:22,472 INFO L78 Accepts]: Start accepts. Automaton has 13053 states and 19804 transitions. Word has length 301 [2021-11-23 03:59:22,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:59:22,474 INFO L470 AbstractCegarLoop]: Abstraction has 13053 states and 19804 transitions. [2021-11-23 03:59:22,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 03:59:22,475 INFO L276 IsEmpty]: Start isEmpty. Operand 13053 states and 19804 transitions. [2021-11-23 03:59:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-23 03:59:22,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:59:22,488 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:59:22,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:59:22,489 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:59:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:59:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1145637007, now seen corresponding path program 1 times [2021-11-23 03:59:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:59:22,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118646523] [2021-11-23 03:59:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:59:22,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:59:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:59:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-23 03:59:23,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:59:23,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118646523] [2021-11-23 03:59:23,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118646523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:59:23,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:59:23,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:59:23,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597736987] [2021-11-23 03:59:23,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:59:23,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:59:23,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:59:23,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:59:23,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:59:23,258 INFO L87 Difference]: Start difference. First operand 13053 states and 19804 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 03:59:26,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:29,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:31,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:34,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:37,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:40,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:44,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:46,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:48,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:59:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:59:49,433 INFO L93 Difference]: Finished difference Result 38561 states and 58537 transitions. [2021-11-23 03:59:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:59:49,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 320 [2021-11-23 03:59:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:59:49,781 INFO L225 Difference]: With dead ends: 38561 [2021-11-23 03:59:49,781 INFO L226 Difference]: Without dead ends: 25563 [2021-11-23 03:59:49,842 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:59:49,845 INFO L933 BasicCegarLoop]: 6186 mSDtfsCounter, 4865 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 12 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 10883 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:59:49,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 10883 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1120 Invalid, 9 Unknown, 0 Unchecked, 25.6s Time] [2021-11-23 03:59:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25563 states. [2021-11-23 03:59:52,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25563 to 25542. [2021-11-23 03:59:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25542 states, 16359 states have (on average 1.3552784400024451) internal successors, (22171), 16895 states have internal predecessors, (22171), 8280 states have call successors, (8280), 904 states have call predecessors, (8280), 901 states have return successors, (8305), 7991 states have call predecessors, (8305), 8277 states have call successors, (8305) [2021-11-23 03:59:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25542 states to 25542 states and 38756 transitions. [2021-11-23 03:59:52,532 INFO L78 Accepts]: Start accepts. Automaton has 25542 states and 38756 transitions. Word has length 320 [2021-11-23 03:59:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:59:52,536 INFO L470 AbstractCegarLoop]: Abstraction has 25542 states and 38756 transitions. [2021-11-23 03:59:52,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 03:59:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 25542 states and 38756 transitions. [2021-11-23 03:59:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-23 03:59:52,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:59:52,552 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:59:52,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:59:52,553 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:59:52,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:59:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash 863983965, now seen corresponding path program 1 times [2021-11-23 03:59:52,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:59:52,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018662707] [2021-11-23 03:59:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:59:52,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:59:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:59:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3071 trivial. 0 not checked. [2021-11-23 03:59:53,703 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:59:53,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018662707] [2021-11-23 03:59:53,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018662707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:59:53,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:59:53,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:59:53,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681958062] [2021-11-23 03:59:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:59:53,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:59:53,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:59:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:59:53,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:59:53,706 INFO L87 Difference]: Start difference. First operand 25542 states and 38756 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-23 03:59:56,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:00,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:02,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:05,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:08,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:11,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:13,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:17,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:20,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:22,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:24,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:27,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:00:28,342 INFO L93 Difference]: Finished difference Result 44454 states and 67453 transitions. [2021-11-23 04:00:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:00:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2021-11-23 04:00:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:00:28,612 INFO L225 Difference]: With dead ends: 44454 [2021-11-23 04:00:28,613 INFO L226 Difference]: Without dead ends: 44415 [2021-11-23 04:00:28,640 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:00:28,644 INFO L933 BasicCegarLoop]: 6251 mSDtfsCounter, 4962 mSDsluCounter, 11996 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 17140 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2021-11-23 04:00:28,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 17140 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 33.9s Time] [2021-11-23 04:00:28,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44415 states. [2021-11-23 04:00:32,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44415 to 44405. [2021-11-23 04:00:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44405 states, 28450 states have (on average 1.3550439367311071) internal successors, (38551), 29383 states have internal predecessors, (38551), 14387 states have call successors, (14387), 1569 states have call predecessors, (14387), 1566 states have return successors, (14434), 13888 states have call predecessors, (14434), 14384 states have call successors, (14434) [2021-11-23 04:00:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44405 states to 44405 states and 67372 transitions. [2021-11-23 04:00:32,593 INFO L78 Accepts]: Start accepts. Automaton has 44405 states and 67372 transitions. Word has length 338 [2021-11-23 04:00:32,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:00:32,595 INFO L470 AbstractCegarLoop]: Abstraction has 44405 states and 67372 transitions. [2021-11-23 04:00:32,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-23 04:00:32,595 INFO L276 IsEmpty]: Start isEmpty. Operand 44405 states and 67372 transitions. [2021-11-23 04:00:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-23 04:00:32,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:00:32,629 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:00:32,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:00:32,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:00:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:00:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 985489588, now seen corresponding path program 1 times [2021-11-23 04:00:32,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:00:32,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325063120] [2021-11-23 04:00:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:00:32,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:00:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:00:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3054 trivial. 0 not checked. [2021-11-23 04:00:33,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:00:33,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325063120] [2021-11-23 04:00:33,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325063120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:00:33,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:00:33,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:00:33,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766599330] [2021-11-23 04:00:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:00:33,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:00:33,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:00:33,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:00:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:00:33,801 INFO L87 Difference]: Start difference. First operand 44405 states and 67372 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-23 04:00:36,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:40,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:42,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:44,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:47,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:51,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:54,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:57,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:00:59,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:02,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:03,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:06,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:01:07,087 INFO L93 Difference]: Finished difference Result 82427 states and 125064 transitions. [2021-11-23 04:01:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:01:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 350 [2021-11-23 04:01:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:01:07,488 INFO L225 Difference]: With dead ends: 82427 [2021-11-23 04:01:07,488 INFO L226 Difference]: Without dead ends: 56860 [2021-11-23 04:01:07,584 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:01:07,585 INFO L933 BasicCegarLoop]: 9008 mSDtfsCounter, 4729 mSDsluCounter, 5188 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 13692 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:01:07,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 13692 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1531 Invalid, 11 Unknown, 0 Unchecked, 32.0s Time] [2021-11-23 04:01:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56860 states. [2021-11-23 04:01:11,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56860 to 56812. [2021-11-23 04:01:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56812 states, 36388 states have (on average 1.354704847752006) internal successors, (49295), 37595 states have internal predecessors, (49295), 18410 states have call successors, (18410), 2017 states have call predecessors, (18410), 2012 states have return successors, (18473), 17759 states have call predecessors, (18473), 18407 states have call successors, (18473) [2021-11-23 04:01:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56812 states to 56812 states and 86178 transitions. [2021-11-23 04:01:12,275 INFO L78 Accepts]: Start accepts. Automaton has 56812 states and 86178 transitions. Word has length 350 [2021-11-23 04:01:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:01:12,278 INFO L470 AbstractCegarLoop]: Abstraction has 56812 states and 86178 transitions. [2021-11-23 04:01:12,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-23 04:01:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 56812 states and 86178 transitions. [2021-11-23 04:01:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-23 04:01:12,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:01:12,347 INFO L514 BasicCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:01:12,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 04:01:12,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:01:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:01:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash 131462377, now seen corresponding path program 1 times [2021-11-23 04:01:12,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:01:12,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293931891] [2021-11-23 04:01:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:01:12,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:01:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:01:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3152 trivial. 0 not checked. [2021-11-23 04:01:13,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:01:13,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293931891] [2021-11-23 04:01:13,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293931891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:01:13,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:01:13,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:01:13,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84382760] [2021-11-23 04:01:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:01:13,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:01:13,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:01:13,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:01:13,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:01:13,386 INFO L87 Difference]: Start difference. First operand 56812 states and 86178 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-23 04:01:16,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:20,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:22,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:24,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:25,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:30,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:32,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:35,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:37,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:40,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:01:43,137 INFO L93 Difference]: Finished difference Result 113479 states and 172156 transitions. [2021-11-23 04:01:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:01:43,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 381 [2021-11-23 04:01:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:01:43,534 INFO L225 Difference]: With dead ends: 113479 [2021-11-23 04:01:43,535 INFO L226 Difference]: Without dead ends: 75532 [2021-11-23 04:01:43,891 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:01:43,892 INFO L933 BasicCegarLoop]: 9125 mSDtfsCounter, 4864 mSDsluCounter, 5203 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 9 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 13820 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2021-11-23 04:01:43,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4870 Valid, 13820 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1544 Invalid, 7 Unknown, 0 Unchecked, 27.9s Time] [2021-11-23 04:01:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75532 states. [2021-11-23 04:01:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75532 to 75505. [2021-11-23 04:01:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75505 states, 48354 states have (on average 1.354551846796542) internal successors, (65498), 49976 states have internal predecessors, (65498), 24472 states have call successors, (24472), 2684 states have call predecessors, (24472), 2677 states have return successors, (24559), 23590 states have call predecessors, (24559), 24469 states have call successors, (24559) [2021-11-23 04:01:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75505 states to 75505 states and 114529 transitions. [2021-11-23 04:01:50,026 INFO L78 Accepts]: Start accepts. Automaton has 75505 states and 114529 transitions. Word has length 381 [2021-11-23 04:01:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:01:50,027 INFO L470 AbstractCegarLoop]: Abstraction has 75505 states and 114529 transitions. [2021-11-23 04:01:50,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-23 04:01:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 75505 states and 114529 transitions. [2021-11-23 04:01:50,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2021-11-23 04:01:50,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:01:50,112 INFO L514 BasicCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:01:50,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 04:01:50,112 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:01:50,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:01:50,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1526934715, now seen corresponding path program 1 times [2021-11-23 04:01:50,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:01:50,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746163008] [2021-11-23 04:01:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:01:50,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:01:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:01:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2949 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2945 trivial. 0 not checked. [2021-11-23 04:01:51,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:01:51,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746163008] [2021-11-23 04:01:51,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746163008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:01:51,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:01:51,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:01:51,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486798990] [2021-11-23 04:01:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:01:51,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:01:51,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:01:51,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:01:51,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:01:51,204 INFO L87 Difference]: Start difference. First operand 75505 states and 114529 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 04:01:54,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:01:58,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:00,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:03,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:05,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:08,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:13,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:15,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:17,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:19,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:22,490 INFO L93 Difference]: Finished difference Result 171607 states and 259792 transitions. [2021-11-23 04:02:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:22,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 387 [2021-11-23 04:02:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:23,187 INFO L225 Difference]: With dead ends: 171607 [2021-11-23 04:02:23,188 INFO L226 Difference]: Without dead ends: 96157 [2021-11-23 04:02:23,362 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:02:23,363 INFO L933 BasicCegarLoop]: 5577 mSDtfsCounter, 3247 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 15 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 10193 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:23,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3249 Valid, 10193 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1198 Invalid, 9 Unknown, 0 Unchecked, 28.8s Time] [2021-11-23 04:02:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96157 states. [2021-11-23 04:02:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96157 to 96110. [2021-11-23 04:02:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96110 states, 61220 states have (on average 1.3464880757922248) internal successors, (82432), 63428 states have internal predecessors, (82432), 31261 states have call successors, (31261), 3640 states have call predecessors, (31261), 3627 states have return successors, (31360), 30040 states have call predecessors, (31360), 31258 states have call successors, (31360) [2021-11-23 04:02:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96110 states to 96110 states and 145053 transitions. [2021-11-23 04:02:30,577 INFO L78 Accepts]: Start accepts. Automaton has 96110 states and 145053 transitions. Word has length 387 [2021-11-23 04:02:30,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:30,578 INFO L470 AbstractCegarLoop]: Abstraction has 96110 states and 145053 transitions. [2021-11-23 04:02:30,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 04:02:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 96110 states and 145053 transitions. [2021-11-23 04:02:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-23 04:02:30,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:30,704 INFO L514 BasicCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:30,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 04:02:30,705 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:02:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash -843294425, now seen corresponding path program 1 times [2021-11-23 04:02:30,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:02:30,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278864461] [2021-11-23 04:02:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:30,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3311 trivial. 0 not checked. [2021-11-23 04:02:31,676 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:02:31,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278864461] [2021-11-23 04:02:31,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278864461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:31,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:31,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 04:02:31,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732092615] [2021-11-23 04:02:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:31,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:02:31,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:02:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:02:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:02:31,678 INFO L87 Difference]: Start difference. First operand 96110 states and 145053 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-23 04:02:34,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:37,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:40,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:44,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:47,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:49,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:52,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:54,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:02:58,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:00,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:02,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:03:03,954 INFO L93 Difference]: Finished difference Result 96158 states and 145104 transitions. [2021-11-23 04:03:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 04:03:03,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 404 [2021-11-23 04:03:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:03:04,379 INFO L225 Difference]: With dead ends: 96158 [2021-11-23 04:03:04,379 INFO L226 Difference]: Without dead ends: 96156 [2021-11-23 04:03:04,409 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:03:04,409 INFO L933 BasicCegarLoop]: 5877 mSDtfsCounter, 4913 mSDsluCounter, 11574 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 16390 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-11-23 04:03:04,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4917 Valid, 16390 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1608 Invalid, 9 Unknown, 0 Unchecked, 30.5s Time] [2021-11-23 04:03:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96156 states. [2021-11-23 04:03:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96156 to 96110. [2021-11-23 04:03:11,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96110 states, 61220 states have (on average 1.3463247304802353) internal successors, (82422), 63428 states have internal predecessors, (82422), 31261 states have call successors, (31261), 3640 states have call predecessors, (31261), 3627 states have return successors, (31360), 30040 states have call predecessors, (31360), 31258 states have call successors, (31360) [2021-11-23 04:03:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96110 states to 96110 states and 145043 transitions. [2021-11-23 04:03:11,382 INFO L78 Accepts]: Start accepts. Automaton has 96110 states and 145043 transitions. Word has length 404 [2021-11-23 04:03:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:03:11,383 INFO L470 AbstractCegarLoop]: Abstraction has 96110 states and 145043 transitions. [2021-11-23 04:03:11,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-23 04:03:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 96110 states and 145043 transitions. [2021-11-23 04:03:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-23 04:03:11,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:03:11,459 INFO L514 BasicCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:03:11,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 04:03:11,460 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:03:11,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:03:11,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1476109371, now seen corresponding path program 1 times [2021-11-23 04:03:11,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:03:11,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457488860] [2021-11-23 04:03:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:03:11,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:03:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:03:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3274 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2021-11-23 04:03:12,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:03:12,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457488860] [2021-11-23 04:03:12,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457488860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:03:12,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:03:12,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:03:12,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730116303] [2021-11-23 04:03:12,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:03:12,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:03:12,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:03:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:03:12,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:03:12,652 INFO L87 Difference]: Start difference. First operand 96110 states and 145043 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 04:03:15,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:18,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:22,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:25,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:28,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:30,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:32,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:35,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:37,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:42,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:03:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:03:42,276 INFO L93 Difference]: Finished difference Result 227583 states and 343288 transitions. [2021-11-23 04:03:42,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:03:42,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 421 [2021-11-23 04:03:42,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:03:43,183 INFO L225 Difference]: With dead ends: 227583 [2021-11-23 04:03:43,197 INFO L226 Difference]: Without dead ends: 133532 [2021-11-23 04:03:43,447 INFO L932 BasicCegarLoop]: 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 [2021-11-23 04:03:43,447 INFO L933 BasicCegarLoop]: 7652 mSDtfsCounter, 3245 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 12266 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:03:43,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3248 Valid, 12266 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1474 Invalid, 8 Unknown, 0 Unchecked, 26.0s Time] [2021-11-23 04:03:43,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133532 states. [2021-11-23 04:03:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133532 to 133485. [2021-11-23 04:03:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133485 states, 84844 states have (on average 1.3432417142048936) internal successors, (113966), 87979 states have internal predecessors, (113966), 43485 states have call successors, (43485), 5173 states have call predecessors, (43485), 5154 states have return successors, (43620), 41745 states have call predecessors, (43620), 43482 states have call successors, (43620) [2021-11-23 04:03:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133485 states to 133485 states and 201071 transitions. [2021-11-23 04:03:52,909 INFO L78 Accepts]: Start accepts. Automaton has 133485 states and 201071 transitions. Word has length 421 [2021-11-23 04:03:52,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:03:52,910 INFO L470 AbstractCegarLoop]: Abstraction has 133485 states and 201071 transitions. [2021-11-23 04:03:52,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 04:03:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 133485 states and 201071 transitions. [2021-11-23 04:03:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-11-23 04:03:53,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:03:53,038 INFO L514 BasicCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:03:53,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 04:03:53,038 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 04:03:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:03:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash 933852508, now seen corresponding path program 1 times [2021-11-23 04:03:53,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 04:03:53,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971310664] [2021-11-23 04:03:53,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:03:53,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:03:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:03:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3432 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2021-11-23 04:03:54,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 04:03:54,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971310664] [2021-11-23 04:03:54,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971310664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:03:54,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:03:54,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 04:03:54,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070118206] [2021-11-23 04:03:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:03:54,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:03:54,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 04:03:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:03:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:03:54,316 INFO L87 Difference]: Start difference. First operand 133485 states and 201071 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-23 04:03:57,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:01,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:08,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:10,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:14,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:17,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:19,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:22,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:29,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:04:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:04:39,466 INFO L93 Difference]: Finished difference Result 334385 states and 503344 transitions. [2021-11-23 04:04:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 04:04:39,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 443 [2021-11-23 04:04:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted.