./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/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 1f86bd80e1dfdf8246d3fbc9ed5a7a7eb69a7621f24c545347c1a1ff0b611568 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:16:50,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:16:50,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:16:50,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:16:50,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:16:50,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:16:50,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:16:50,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:16:50,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:16:50,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:16:50,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:16:50,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:16:50,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:16:50,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:16:50,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:16:50,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:16:50,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:16:50,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:16:50,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:16:50,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:16:50,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:16:50,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:16:50,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:16:50,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:16:50,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:16:50,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:16:50,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:16:50,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:16:50,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:16:50,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:16:50,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:16:50,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:16:50,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:16:50,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:16:50,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:16:50,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:16:50,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:16:50,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:16:50,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:16:50,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:16:50,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:16:50,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:16:50,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:16:50,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:16:50,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:16:50,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:16:50,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:16:50,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:16:50,902 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:16:50,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:16:50,903 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:16:50,903 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:16:50,904 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:16:50,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:16:50,904 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:16:50,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:16:50,905 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:16:50,905 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:16:50,905 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:16:50,906 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:16:50,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:16:50,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:16:50,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:16:50,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:16:50,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:16:50,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:16:50,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:16:50,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:16:50,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:16:50,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:16:50,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:16:50,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:16:50,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:16:50,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:16:50,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:16:50,911 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:16:50,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:16:50,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:16:50,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:16:50,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:16:50,914 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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f86bd80e1dfdf8246d3fbc9ed5a7a7eb69a7621f24c545347c1a1ff0b611568 [2021-11-23 02:16:51,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:16:51,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:16:51,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:16:51,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:16:51,270 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:16:51,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-23 02:16:51,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/data/0208aecf3/bde6223843504e9aa493afc3229f396f/FLAGecab9d29a [2021-11-23 02:16:53,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:16:53,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-23 02:16:53,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/data/0208aecf3/bde6223843504e9aa493afc3229f396f/FLAGecab9d29a [2021-11-23 02:16:53,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/data/0208aecf3/bde6223843504e9aa493afc3229f396f [2021-11-23 02:16:53,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:16:53,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:16:53,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:16:53,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:16:53,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:16:53,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:53" (1/1) ... [2021-11-23 02:16:53,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4510002d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:53, skipping insertion in model container [2021-11-23 02:16:53,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:53" (1/1) ... [2021-11-23 02:16:53,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:16:53,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:17:06,798 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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[950924,950937] [2021-11-23 02:17:06,802 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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[951069,951082] [2021-11-23 02:17:06,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:17:06,984 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:17:08,423 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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[950924,950937] [2021-11-23 02:17:08,423 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_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[951069,951082] [2021-11-23 02:17:08,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:17:09,292 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:17:09,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09 WrapperNode [2021-11-23 02:17:09,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:17:09,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:17:09,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:17:09,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:17:09,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:09,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:11,126 INFO L137 Inliner]: procedures = 866, calls = 16600, calls flagged for inlining = 427, calls inlined = 364, statements flattened = 29024 [2021-11-23 02:17:11,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:17:11,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:17:11,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:17:11,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:17:11,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:11,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:11,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:11,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:12,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:13,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:13,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:13,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:17:13,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:17:13,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:17:13,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:17:13,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (1/1) ... [2021-11-23 02:17:13,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:17:13,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:17:13,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:17:13,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecaee3e8-018c-4aa3-a14e-6d0219dcb14d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:17:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-23 02:17:13,604 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-23 02:17:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-23 02:17:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-23 02:17:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-23 02:17:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-23 02:17:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-23 02:17:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-23 02:17:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-23 02:17:13,606 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-23 02:17:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 02:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 02:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-23 02:17:13,607 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-23 02:17:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:17:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:17:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-23 02:17:13,608 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-23 02:17:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-23 02:17:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-23 02:17:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:17:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:17:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:17:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:17:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-23 02:17:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-23 02:17:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 02:17:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 02:17:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-23 02:17:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-23 02:17:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-23 02:17:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-23 02:17:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-23 02:17:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-23 02:17:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:17:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:17:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:17:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:17:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:17:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:17:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:17:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:17:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-23 02:17:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-23 02:17:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-23 02:17:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-23 02:17:13,616 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-23 02:17:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-23 02:17:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-23 02:17:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-23 02:17:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:17:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:17:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:17:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:17:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_113 [2021-11-23 02:17:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_113 [2021-11-23 02:17:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-23 02:17:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-23 02:17:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-23 02:17:13,621 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-23 02:17:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-23 02:17:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-23 02:17:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-23 02:17:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-23 02:17:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:17:13,622 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:17:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-23 02:17:13,623 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-23 02:17:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:17:13,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:17:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-23 02:17:13,624 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-23 02:17:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:17:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_108 [2021-11-23 02:17:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_108 [2021-11-23 02:17:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-23 02:17:13,626 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-23 02:17:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-23 02:17:13,627 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-23 02:17:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-23 02:17:13,628 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-23 02:17:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:17:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:17:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-23 02:17:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-23 02:17:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:17:13,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:17:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-23 02:17:13,631 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-23 02:17:13,631 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-23 02:17:13,632 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-23 02:17:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-23 02:17:13,633 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-23 02:17:13,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:17:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:17:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:17:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:17:13,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:17:13,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:17:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 02:17:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-23 02:17:13,635 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-23 02:17:13,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:17:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:17:13,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:17:13,636 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:17:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:17:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:17:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-23 02:17:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-23 02:17:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:17:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 02:17:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 02:17:13,644 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-23 02:17:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-23 02:17:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:17:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:17:13,646 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-23 02:17:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-23 02:17:13,653 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:17:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:17:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-23 02:17:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-23 02:17:13,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:17:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:17:13,655 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-23 02:17:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-23 02:17:13,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-23 02:17:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-23 02:17:13,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:17:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:17:13,656 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-23 02:17:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-23 02:17:13,657 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-23 02:17:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-23 02:17:13,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-23 02:17:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-23 02:17:13,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:17:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:17:13,658 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-23 02:17:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-23 02:17:13,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-23 02:17:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-23 02:17:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-23 02:17:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-23 02:17:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-23 02:17:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-23 02:17:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:17:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:17:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-23 02:17:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-23 02:17:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:17:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:17:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:17:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-23 02:17:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-23 02:17:13,661 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:17:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:17:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:17:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:17:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:17:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-23 02:17:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-23 02:17:13,663 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-23 02:17:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-23 02:17:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-23 02:17:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-23 02:17:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:17:13,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:17:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-23 02:17:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-23 02:17:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-23 02:17:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-23 02:17:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-23 02:17:13,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-23 02:17:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-23 02:17:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-23 02:17:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-23 02:17:13,666 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-23 02:17:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 02:17:13,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 02:17:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-23 02:17:13,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-23 02:17:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:17:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:17:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:17:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_119 [2021-11-23 02:17:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_119 [2021-11-23 02:17:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-23 02:17:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-23 02:17:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:17:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-23 02:17:13,669 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-23 02:17:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-23 02:17:13,669 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-23 02:17:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 02:17:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 02:17:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-23 02:17:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-23 02:17:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-23 02:17:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-23 02:17:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-23 02:17:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-23 02:17:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 02:17:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 02:17:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-23 02:17:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-23 02:17:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:17:13,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:17:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:17:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:17:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-23 02:17:13,673 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-23 02:17:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:17:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:17:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-23 02:17:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-23 02:17:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-23 02:17:13,674 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-23 02:17:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-23 02:17:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-23 02:17:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-23 02:17:13,675 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-23 02:17:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 02:17:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 02:17:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-23 02:17:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-23 02:17:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-23 02:17:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-23 02:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-23 02:17:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-23 02:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-23 02:17:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-23 02:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:17:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-23 02:17:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-23 02:17:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:17:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:17:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-23 02:17:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-23 02:17:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 02:17:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 02:17:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-23 02:17:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-23 02:17:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-23 02:17:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-23 02:17:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-23 02:17:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-23 02:17:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-23 02:17:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-23 02:17:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-23 02:17:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-23 02:17:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:17:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:17:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-23 02:17:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-23 02:17:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:17:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:17:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 02:17:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 02:17:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-23 02:17:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-23 02:17:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 02:17:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-23 02:17:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-23 02:17:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-23 02:17:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-23 02:17:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 02:17:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 02:17:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:17:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:17:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 02:17:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 02:17:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-23 02:17:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-23 02:17:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:17:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:17:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-23 02:17:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-23 02:17:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-23 02:17:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-23 02:17:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-23 02:17:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-23 02:17:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:17:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:17:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-23 02:17:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-23 02:17:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-23 02:17:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-23 02:17:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 02:17:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 02:17:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-23 02:17:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-23 02:17:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-23 02:17:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-23 02:17:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-23 02:17:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-23 02:17:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-23 02:17:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-23 02:17:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-23 02:17:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-23 02:17:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:17:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:17:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:17:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:17:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:17:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:17:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:17:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:17:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-23 02:17:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-23 02:17:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:17:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-23 02:17:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-23 02:17:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-23 02:17:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-23 02:17:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-23 02:17:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-23 02:17:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-23 02:17:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-23 02:17:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-23 02:17:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-23 02:17:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:17:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:17:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:17:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-23 02:17:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-23 02:17:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-23 02:17:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-23 02:17:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:17:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:17:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:17:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:17:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:17:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-23 02:17:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-23 02:17:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:17:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:17:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-23 02:17:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-23 02:17:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-23 02:17:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-23 02:17:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:17:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:17:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:17:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:17:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-23 02:17:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-23 02:17:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:17:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:17:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-23 02:17:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-23 02:17:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-23 02:17:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-23 02:17:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-23 02:17:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-23 02:17:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-23 02:17:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-23 02:17:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 02:17:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 02:17:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:17:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:17:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:17:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:17:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:17:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:17:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:17:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:17:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-23 02:17:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-23 02:17:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-23 02:17:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-23 02:17:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-23 02:17:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-23 02:17:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-23 02:17:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-23 02:17:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-23 02:17:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-23 02:17:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:17:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:17:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:17:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:17:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:17:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:17:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-23 02:17:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-23 02:17:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:17:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:17:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-23 02:17:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-23 02:17:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-23 02:17:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-23 02:17:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 02:17:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 02:17:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-23 02:17:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-23 02:17:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-23 02:17:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-23 02:17:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-23 02:17:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-23 02:17:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 02:17:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 02:17:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-23 02:17:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-23 02:17:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-23 02:17:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-23 02:17:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:17:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:17:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:17:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-23 02:17:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-23 02:17:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:17:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:17:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:17:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:17:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-23 02:17:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-23 02:17:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:17:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:17:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 02:17:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 02:17:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-23 02:17:13,724 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-23 02:17:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:17:13,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:17:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-23 02:17:13,724 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-23 02:17:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-23 02:17:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-23 02:17:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-23 02:17:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-23 02:17:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:17:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:17:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 02:17:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 02:17:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:17:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:17:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-23 02:17:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-23 02:17:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-23 02:17:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-23 02:17:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:17:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-23 02:17:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-23 02:17:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-23 02:17:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-23 02:17:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-23 02:17:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-23 02:17:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:17:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:17:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:17:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:17:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:17:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:17:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-23 02:17:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-23 02:17:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-23 02:17:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-23 02:17:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-23 02:17:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-23 02:17:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-23 02:17:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-23 02:17:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:17:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:17:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:17:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:17:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-23 02:17:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-23 02:17:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-23 02:17:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-23 02:17:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-23 02:17:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-23 02:17:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-23 02:17:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-23 02:17:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-23 02:17:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-23 02:17:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-23 02:17:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-23 02:17:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:17:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:17:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:17:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:17:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-23 02:17:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-23 02:17:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-23 02:17:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-23 02:17:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-23 02:17:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-23 02:17:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-23 02:17:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-23 02:17:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-23 02:17:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-23 02:17:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:17:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:17:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-23 02:17:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-23 02:17:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:17:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:17:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-23 02:17:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-23 02:17:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:17:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:17:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-23 02:17:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-23 02:17:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-23 02:17:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-23 02:17:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:17:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:17:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 02:17:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 02:17:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 02:17:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 02:17:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-23 02:17:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-23 02:17:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-23 02:17:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-23 02:17:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:17:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:17:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-23 02:17:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-23 02:17:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 02:17:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 02:17:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-11-23 02:17:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-11-23 02:17:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:17:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:17:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:17:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 02:17:16,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:17:16,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:17:18,426 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:18:35,225 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:18:35,563 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:18:45,120 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:18:45,121 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-23 02:18:45,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:45 BoogieIcfgContainer [2021-11-23 02:18:45,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:18:45,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:18:45,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:18:45,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:18:45,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:16:53" (1/3) ... [2021-11-23 02:18:45,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fffe3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:45, skipping insertion in model container [2021-11-23 02:18:45,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:09" (2/3) ... [2021-11-23 02:18:45,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fffe3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:45, skipping insertion in model container [2021-11-23 02:18:45,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:45" (3/3) ... [2021-11-23 02:18:45,149 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-23 02:18:45,156 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:18:45,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 02:18:45,280 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:18:45,289 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 02:18:45,289 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 02:18:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 6806 states, 4330 states have (on average 1.3404157043879907) internal successors, (5804), 4423 states have internal predecessors, (5804), 2222 states have call successors, (2222), 255 states have call predecessors, (2222), 254 states have return successors, (2216), 2208 states have call predecessors, (2216), 2216 states have call successors, (2216) [2021-11-23 02:18:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-23 02:18:45,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:18:45,514 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 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] [2021-11-23 02:18:45,514 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:18:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:18:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1380002487, now seen corresponding path program 1 times [2021-11-23 02:18:45,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:18:45,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398928981] [2021-11-23 02:18:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:18:45,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:18:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:18:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked. [2021-11-23 02:18:47,583 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:18:47,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398928981] [2021-11-23 02:18:47,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398928981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:18:47,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:18:47,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:18:47,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333786114] [2021-11-23 02:18:47,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:18:47,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:18:47,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:18:47,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:18:47,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:18:47,674 INFO L87 Difference]: Start difference. First operand has 6806 states, 4330 states have (on average 1.3404157043879907) internal successors, (5804), 4423 states have internal predecessors, (5804), 2222 states have call successors, (2222), 255 states have call predecessors, (2222), 254 states have return successors, (2216), 2208 states have call predecessors, (2216), 2216 states have call successors, (2216) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:18:51,323 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 02:18:58,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:04,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:06,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:08,765 WARN L534 Checker$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 02:19:10,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:12,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:14,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:16,590 WARN L534 Checker$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 02:19:19,382 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 02:19:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:19:20,608 INFO L93 Difference]: Finished difference Result 16476 states and 24733 transitions. [2021-11-23 02:19:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:19:20,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 280 [2021-11-23 02:19:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:19:20,752 INFO L225 Difference]: With dead ends: 16476 [2021-11-23 02:19:20,753 INFO L226 Difference]: Without dead ends: 9643 [2021-11-23 02:19:20,840 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 02:19:20,849 INFO L933 BasicCegarLoop]: 10600 mSDtfsCounter, 4238 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4240 SdHoareTripleChecker+Valid, 19831 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:19:20,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4240 Valid, 19831 Invalid, 1871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1857 Invalid, 7 Unknown, 0 Unchecked, 32.1s Time] [2021-11-23 02:19:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2021-11-23 02:19:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 9631. [2021-11-23 02:19:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9631 states, 6039 states have (on average 1.3189269746646797) internal successors, (7965), 6177 states have internal predecessors, (7965), 3156 states have call successors, (3156), 435 states have call predecessors, (3156), 434 states have return successors, (3158), 3144 states have call predecessors, (3158), 3156 states have call successors, (3158) [2021-11-23 02:19:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9631 states to 9631 states and 14279 transitions. [2021-11-23 02:19:22,224 INFO L78 Accepts]: Start accepts. Automaton has 9631 states and 14279 transitions. Word has length 280 [2021-11-23 02:19:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:19:22,232 INFO L470 AbstractCegarLoop]: Abstraction has 9631 states and 14279 transitions. [2021-11-23 02:19:22,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:19:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9631 states and 14279 transitions. [2021-11-23 02:19:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-23 02:19:22,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:19:22,250 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:19:22,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:19:22,250 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:19:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:19:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1817324136, now seen corresponding path program 1 times [2021-11-23 02:19:22,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:19:22,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612482062] [2021-11-23 02:19:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:19:22,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:19:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:19:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2021-11-23 02:19:23,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:19:23,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612482062] [2021-11-23 02:19:23,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612482062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:23,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:19:23,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:19:23,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154956233] [2021-11-23 02:19:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:23,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:19:23,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:19:23,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:19:23,518 INFO L87 Difference]: Start difference. First operand 9631 states and 14279 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-23 02:19:27,618 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 02:19:39,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:41,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:42,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:45,852 WARN L534 Checker$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 02:19:47,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:19:50,406 WARN L534 Checker$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 02:19:55,089 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 02:19:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:19:55,354 INFO L93 Difference]: Finished difference Result 25089 states and 37291 transitions. [2021-11-23 02:19:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:19:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 280 [2021-11-23 02:19:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:19:55,510 INFO L225 Difference]: With dead ends: 25089 [2021-11-23 02:19:55,510 INFO L226 Difference]: Without dead ends: 15505 [2021-11-23 02:19:55,576 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 02:19:55,577 INFO L933 BasicCegarLoop]: 15971 mSDtfsCounter, 8615 mSDsluCounter, 10087 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 17 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8616 SdHoareTripleChecker+Valid, 25190 SdHoareTripleChecker+Invalid, 2471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:19:55,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8616 Valid, 25190 Invalid, 2471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2448 Invalid, 6 Unknown, 0 Unchecked, 31.2s Time] [2021-11-23 02:19:55,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15505 states. [2021-11-23 02:19:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15505 to 15497. [2021-11-23 02:19:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15497 states, 9781 states have (on average 1.3214395256108782) internal successors, (12925), 9996 states have internal predecessors, (12925), 5058 states have call successors, (5058), 657 states have call predecessors, (5058), 656 states have return successors, (5061), 5036 states have call predecessors, (5061), 5058 states have call successors, (5061) [2021-11-23 02:19:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15497 states to 15497 states and 23044 transitions. [2021-11-23 02:19:56,996 INFO L78 Accepts]: Start accepts. Automaton has 15497 states and 23044 transitions. Word has length 280 [2021-11-23 02:19:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:19:56,998 INFO L470 AbstractCegarLoop]: Abstraction has 15497 states and 23044 transitions. [2021-11-23 02:19:56,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-23 02:19:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 15497 states and 23044 transitions. [2021-11-23 02:19:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-23 02:19:57,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:19:57,009 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 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, 1, 1, 1, 1, 1] [2021-11-23 02:19:57,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:19:57,010 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:19:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:19:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1144833792, now seen corresponding path program 1 times [2021-11-23 02:19:57,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:19:57,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475355264] [2021-11-23 02:19:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:19:57,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:19:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:19:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2238 trivial. 0 not checked. [2021-11-23 02:19:58,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:19:58,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475355264] [2021-11-23 02:19:58,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475355264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:19:58,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:19:58,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:19:58,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32092343] [2021-11-23 02:19:58,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:19:58,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:19:58,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:19:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:19:58,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:19:58,130 INFO L87 Difference]: Start difference. First operand 15497 states and 23044 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:20:02,288 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 02:20:13,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:16,060 WARN L534 Checker$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 02:20:19,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:21,107 WARN L534 Checker$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 02:20:24,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:28,359 WARN L534 Checker$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 02:20:31,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:33,337 WARN L534 Checker$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 02:20:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:33,680 INFO L93 Difference]: Finished difference Result 36763 states and 54733 transitions. [2021-11-23 02:20:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:33,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 327 [2021-11-23 02:20:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:33,836 INFO L225 Difference]: With dead ends: 36763 [2021-11-23 02:20:33,837 INFO L226 Difference]: Without dead ends: 21313 [2021-11-23 02:20:33,925 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 02:20:33,927 INFO L933 BasicCegarLoop]: 17011 mSDtfsCounter, 8519 mSDsluCounter, 10077 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8522 SdHoareTripleChecker+Valid, 26222 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:33,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8522 Valid, 26222 Invalid, 2556 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2533 Invalid, 8 Unknown, 0 Unchecked, 34.8s Time] [2021-11-23 02:20:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21313 states. [2021-11-23 02:20:35,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21313 to 21304. [2021-11-23 02:20:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21304 states, 13482 states have (on average 1.3228007713989023) internal successors, (17834), 13775 states have internal predecessors, (17834), 6941 states have call successors, (6941), 880 states have call predecessors, (6941), 879 states have return successors, (6947), 6908 states have call predecessors, (6947), 6941 states have call successors, (6947) [2021-11-23 02:20:35,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21304 states to 21304 states and 31722 transitions. [2021-11-23 02:20:35,596 INFO L78 Accepts]: Start accepts. Automaton has 21304 states and 31722 transitions. Word has length 327 [2021-11-23 02:20:35,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:35,597 INFO L470 AbstractCegarLoop]: Abstraction has 21304 states and 31722 transitions. [2021-11-23 02:20:35,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-23 02:20:35,597 INFO L276 IsEmpty]: Start isEmpty. Operand 21304 states and 31722 transitions. [2021-11-23 02:20:35,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-23 02:20:35,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:35,609 INFO L514 BasicCegarLoop]: trace histogram [29, 23, 23, 23, 23, 23, 23, 8, 8, 3, 3, 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] [2021-11-23 02:20:35,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:20:35,610 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:20:35,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:35,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1481159874, now seen corresponding path program 1 times [2021-11-23 02:20:35,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:35,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686040458] [2021-11-23 02:20:35,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:35,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-11-23 02:20:36,809 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:36,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686040458] [2021-11-23 02:20:36,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686040458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:36,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:36,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:36,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087357841] [2021-11-23 02:20:36,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:36,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:36,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:36,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:36,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:36,812 INFO L87 Difference]: Start difference. First operand 21304 states and 31722 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-23 02:20:39,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:49,508 WARN L534 Checker$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 02:20:51,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:53,586 WARN L534 Checker$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 02:20:55,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:20:57,905 WARN L534 Checker$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 02:21:01,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:04,396 WARN L534 Checker$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 02:21:06,616 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 02:21:06,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:06,915 INFO L93 Difference]: Finished difference Result 48691 states and 72522 transitions. [2021-11-23 02:21:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:21:06,916 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 389 [2021-11-23 02:21:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:07,115 INFO L225 Difference]: With dead ends: 48691 [2021-11-23 02:21:07,115 INFO L226 Difference]: Without dead ends: 27434 [2021-11-23 02:21:07,361 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 02:21:07,363 INFO L933 BasicCegarLoop]: 15126 mSDtfsCounter, 9402 mSDsluCounter, 9604 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 19 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9405 SdHoareTripleChecker+Valid, 23909 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:07,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9405 Valid, 23909 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2357 Invalid, 7 Unknown, 0 Unchecked, 29.0s Time] [2021-11-23 02:21:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27434 states. [2021-11-23 02:21:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27434 to 27425. [2021-11-23 02:21:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27425 states, 17364 states have (on average 1.3229670582815019) internal successors, (22972), 17741 states have internal predecessors, (22972), 8925 states have call successors, (8925), 1135 states have call predecessors, (8925), 1134 states have return successors, (8934), 8881 states have call predecessors, (8934), 8925 states have call successors, (8934) [2021-11-23 02:21:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27425 states to 27425 states and 40831 transitions. [2021-11-23 02:21:09,453 INFO L78 Accepts]: Start accepts. Automaton has 27425 states and 40831 transitions. Word has length 389 [2021-11-23 02:21:09,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:09,454 INFO L470 AbstractCegarLoop]: Abstraction has 27425 states and 40831 transitions. [2021-11-23 02:21:09,454 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, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-23 02:21:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 27425 states and 40831 transitions. [2021-11-23 02:21:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-23 02:21:09,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:09,465 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:09,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:21:09,465 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:09,466 INFO L85 PathProgramCache]: Analyzing trace with hash 884257661, now seen corresponding path program 1 times [2021-11-23 02:21:09,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:09,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699080195] [2021-11-23 02:21:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:09,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2650 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2021-11-23 02:21:10,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:10,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699080195] [2021-11-23 02:21:10,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699080195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:10,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:10,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:21:10,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663995346] [2021-11-23 02:21:10,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:10,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:21:10,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:10,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:21:10,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:21:10,475 INFO L87 Difference]: Start difference. First operand 27425 states and 40831 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-23 02:21:14,641 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 02:21:26,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:29,186 WARN L534 Checker$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 02:21:31,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:33,306 WARN L534 Checker$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 02:21:35,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:37,455 WARN L534 Checker$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 02:21:41,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:21:45,120 WARN L534 Checker$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 02:21:47,399 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 02:21:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:47,778 INFO L93 Difference]: Finished difference Result 60257 states and 90237 transitions. [2021-11-23 02:21:47,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:21:47,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 444 [2021-11-23 02:21:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:47,989 INFO L225 Difference]: With dead ends: 60257 [2021-11-23 02:21:47,989 INFO L226 Difference]: Without dead ends: 32879 [2021-11-23 02:21:48,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:21:48,139 INFO L933 BasicCegarLoop]: 10846 mSDtfsCounter, 2357 mSDsluCounter, 21029 mSDsCounter, 0 mSdLazyCounter, 2863 mSolverCounterSat, 966 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 30121 SdHoareTripleChecker+Invalid, 3838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 2863 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:48,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2357 Valid, 30121 Invalid, 3838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [966 Valid, 2863 Invalid, 9 Unknown, 0 Unchecked, 36.1s Time] [2021-11-23 02:21:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32879 states. [2021-11-23 02:21:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32879 to 27429. [2021-11-23 02:21:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27429 states, 17368 states have (on average 1.3228926761860893) internal successors, (22976), 17745 states have internal predecessors, (22976), 8925 states have call successors, (8925), 1135 states have call predecessors, (8925), 1134 states have return successors, (8934), 8881 states have call predecessors, (8934), 8925 states have call successors, (8934) [2021-11-23 02:21:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27429 states to 27429 states and 40835 transitions. [2021-11-23 02:21:50,582 INFO L78 Accepts]: Start accepts. Automaton has 27429 states and 40835 transitions. Word has length 444 [2021-11-23 02:21:50,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:50,584 INFO L470 AbstractCegarLoop]: Abstraction has 27429 states and 40835 transitions. [2021-11-23 02:21:50,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-23 02:21:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 27429 states and 40835 transitions. [2021-11-23 02:21:50,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-23 02:21:50,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:50,597 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:50,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:21:50,598 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:50,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1421701729, now seen corresponding path program 1 times [2021-11-23 02:21:50,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:50,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921689908] [2021-11-23 02:21:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:50,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2650 trivial. 0 not checked. [2021-11-23 02:21:53,174 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:53,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921689908] [2021-11-23 02:21:53,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921689908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:53,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:53,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:21:53,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298440418] [2021-11-23 02:21:53,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:53,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:21:53,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:21:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:21:53,178 INFO L87 Difference]: Start difference. First operand 27429 states and 40835 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-23 02:22:00,299 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 02:22:17,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:22:25,144 WARN L534 Checker$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 02:22:28,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:22:31,742 WARN L534 Checker$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 02:22:33,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:22:35,953 WARN L534 Checker$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 02:22:38,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:22:42,501 WARN L534 Checker$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 02:22:46,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:22:46,185 INFO L93 Difference]: Finished difference Result 30682 states and 45482 transitions. [2021-11-23 02:22:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:22:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 444 [2021-11-23 02:22:46,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:22:46,387 INFO L225 Difference]: With dead ends: 30682 [2021-11-23 02:22:46,387 INFO L226 Difference]: Without dead ends: 30680 [2021-11-23 02:22:46,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:22:46,411 INFO L933 BasicCegarLoop]: 11181 mSDtfsCounter, 3874 mSDsluCounter, 44475 mSDsCounter, 0 mSdLazyCounter, 6689 mSolverCounterSat, 8 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 51960 SdHoareTripleChecker+Invalid, 6705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 6689 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:22:46,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3883 Valid, 51960 Invalid, 6705 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 6689 Invalid, 8 Unknown, 0 Unchecked, 51.6s Time] [2021-11-23 02:22:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30680 states. [2021-11-23 02:22:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30680 to 30667. [2021-11-23 02:22:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30667 states, 19348 states have (on average 1.3162600785610916) internal successors, (25467), 19798 states have internal predecessors, (25467), 9976 states have call successors, (9976), 1352 states have call predecessors, (9976), 1341 states have return successors, (10021), 9890 states have call predecessors, (10021), 9976 states have call successors, (10021) [2021-11-23 02:22:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30667 states to 30667 states and 45464 transitions. [2021-11-23 02:22:48,781 INFO L78 Accepts]: Start accepts. Automaton has 30667 states and 45464 transitions. Word has length 444 [2021-11-23 02:22:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:22:48,785 INFO L470 AbstractCegarLoop]: Abstraction has 30667 states and 45464 transitions. [2021-11-23 02:22:48,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-23 02:22:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 30667 states and 45464 transitions. [2021-11-23 02:22:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-11-23 02:22:48,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:22:48,797 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:48,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:22:48,797 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:22:48,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:22:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1325405376, now seen corresponding path program 1 times [2021-11-23 02:22:48,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:22:48,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556701327] [2021-11-23 02:22:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:22:48,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:22:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:22:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 2624 trivial. 0 not checked. [2021-11-23 02:22:49,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:22:49,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556701327] [2021-11-23 02:22:49,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556701327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:22:49,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:22:49,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:22:49,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019077233] [2021-11-23 02:22:49,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:22:49,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:22:49,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:22:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:22:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:22:49,725 INFO L87 Difference]: Start difference. First operand 30667 states and 45464 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-23 02:22:53,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:23:13,532 WARN L534 Checker$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 02:23:16,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:23:18,304 WARN L534 Checker$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 02:23:20,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:23:22,448 WARN L534 Checker$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 02:23:24,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:23:29,546 WARN L534 Checker$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 02:23:35,014 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 02:23:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:35,803 INFO L93 Difference]: Finished difference Result 67228 states and 99743 transitions. [2021-11-23 02:23:35,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:23:35,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 465 [2021-11-23 02:23:35,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:36,027 INFO L225 Difference]: With dead ends: 67228 [2021-11-23 02:23:36,027 INFO L226 Difference]: Without dead ends: 36623 [2021-11-23 02:23:36,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:23:36,187 INFO L933 BasicCegarLoop]: 15615 mSDtfsCounter, 8548 mSDsluCounter, 14880 mSDsCounter, 0 mSdLazyCounter, 6743 mSolverCounterSat, 20 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8551 SdHoareTripleChecker+Valid, 28908 SdHoareTripleChecker+Invalid, 6771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6743 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:36,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8551 Valid, 28908 Invalid, 6771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 6743 Invalid, 8 Unknown, 0 Unchecked, 44.2s Time] [2021-11-23 02:23:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36623 states. [2021-11-23 02:23:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36623 to 36613. [2021-11-23 02:23:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36613 states, 23150 states have (on average 1.317840172786177) internal successors, (30508), 23679 states have internal predecessors, (30508), 11883 states have call successors, (11883), 1589 states have call predecessors, (11883), 1578 states have return successors, (11931), 11785 states have call predecessors, (11931), 11883 states have call successors, (11931) [2021-11-23 02:23:38,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36613 states to 36613 states and 54322 transitions. [2021-11-23 02:23:38,764 INFO L78 Accepts]: Start accepts. Automaton has 36613 states and 54322 transitions. Word has length 465 [2021-11-23 02:23:38,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:38,765 INFO L470 AbstractCegarLoop]: Abstraction has 36613 states and 54322 transitions. [2021-11-23 02:23:38,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-23 02:23:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 36613 states and 54322 transitions. [2021-11-23 02:23:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-23 02:23:38,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:38,774 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 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 02:23:38,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:23:38,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1203724484, now seen corresponding path program 1 times [2021-11-23 02:23:38,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:38,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796557678] [2021-11-23 02:23:38,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:38,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2021-11-23 02:23:40,077 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:40,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796557678] [2021-11-23 02:23:40,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796557678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:40,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:40,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:23:40,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378502043] [2021-11-23 02:23:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:40,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:23:40,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:23:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:23:40,081 INFO L87 Difference]: Start difference. First operand 36613 states and 54322 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-23 02:23:44,364 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 02:23:58,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:01,520 WARN L534 Checker$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 02:24:04,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:06,340 WARN L534 Checker$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 02:24:08,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:11,787 WARN L534 Checker$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 02:24:13,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:17,352 WARN L534 Checker$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 02:24:19,621 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 02:24:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:24:20,271 INFO L93 Difference]: Finished difference Result 91077 states and 137403 transitions. [2021-11-23 02:24:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:24:20,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 479 [2021-11-23 02:24:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:24:20,715 INFO L225 Difference]: With dead ends: 91077 [2021-11-23 02:24:20,715 INFO L226 Difference]: Without dead ends: 57869 [2021-11-23 02:24:21,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:24:21,061 INFO L933 BasicCegarLoop]: 11235 mSDtfsCounter, 4817 mSDsluCounter, 22660 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 1009 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 31866 SdHoareTripleChecker+Invalid, 4058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1009 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:24:21,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5863 Valid, 31866 Invalid, 4058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1009 Valid, 3040 Invalid, 9 Unknown, 0 Unchecked, 37.6s Time] [2021-11-23 02:24:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57869 states. [2021-11-23 02:24:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57869 to 36615. [2021-11-23 02:24:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36615 states, 23152 states have (on average 1.3178127159640636) internal successors, (30510), 23681 states have internal predecessors, (30510), 11883 states have call successors, (11883), 1589 states have call predecessors, (11883), 1578 states have return successors, (11931), 11785 states have call predecessors, (11931), 11883 states have call successors, (11931) [2021-11-23 02:24:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36615 states to 36615 states and 54324 transitions. [2021-11-23 02:24:24,592 INFO L78 Accepts]: Start accepts. Automaton has 36615 states and 54324 transitions. Word has length 479 [2021-11-23 02:24:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:24:24,594 INFO L470 AbstractCegarLoop]: Abstraction has 36615 states and 54324 transitions. [2021-11-23 02:24:24,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-23 02:24:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 36615 states and 54324 transitions. [2021-11-23 02:24:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-11-23 02:24:24,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:24:24,604 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:24,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:24:24,605 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:24:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:24:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1160603805, now seen corresponding path program 1 times [2021-11-23 02:24:24,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:24:24,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063963745] [2021-11-23 02:24:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:24:24,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:24:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:24:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2021-11-23 02:24:25,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:24:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063963745] [2021-11-23 02:24:25,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063963745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:24:25,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:24:25,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:24:25,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759977076] [2021-11-23 02:24:25,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:24:25,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:24:25,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:24:25,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:24:25,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:24:25,466 INFO L87 Difference]: Start difference. First operand 36615 states and 54324 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:24:29,413 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 02:24:41,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:43,601 WARN L534 Checker$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 02:24:47,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:49,333 WARN L534 Checker$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 02:24:51,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:53,834 WARN L534 Checker$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 02:24:57,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:24:59,865 WARN L534 Checker$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 02:25:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:25:00,408 INFO L93 Difference]: Finished difference Result 76633 states and 114594 transitions. [2021-11-23 02:25:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:25:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 497 [2021-11-23 02:25:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:25:00,678 INFO L225 Difference]: With dead ends: 76633 [2021-11-23 02:25:00,679 INFO L226 Difference]: Without dead ends: 43423 [2021-11-23 02:25:01,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:25:01,024 INFO L933 BasicCegarLoop]: 10030 mSDtfsCounter, 2463 mSDsluCounter, 20439 mSDsCounter, 0 mSdLazyCounter, 2685 mSolverCounterSat, 975 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 28717 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 2685 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:25:01,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2463 Valid, 28717 Invalid, 3669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [975 Valid, 2685 Invalid, 9 Unknown, 0 Unchecked, 33.0s Time] [2021-11-23 02:25:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43423 states. [2021-11-23 02:25:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43423 to 36617. [2021-11-23 02:25:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36617 states, 23154 states have (on average 1.3177852638852898) internal successors, (30512), 23683 states have internal predecessors, (30512), 11883 states have call successors, (11883), 1589 states have call predecessors, (11883), 1578 states have return successors, (11931), 11785 states have call predecessors, (11931), 11883 states have call successors, (11931) [2021-11-23 02:25:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36617 states to 36617 states and 54326 transitions. [2021-11-23 02:25:03,777 INFO L78 Accepts]: Start accepts. Automaton has 36617 states and 54326 transitions. Word has length 497 [2021-11-23 02:25:03,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:25:03,778 INFO L470 AbstractCegarLoop]: Abstraction has 36617 states and 54326 transitions. [2021-11-23 02:25:03,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:25:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 36617 states and 54326 transitions. [2021-11-23 02:25:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-11-23 02:25:03,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:25:03,788 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:25:03,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:25:03,789 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:25:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:25:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 910753010, now seen corresponding path program 1 times [2021-11-23 02:25:03,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:25:03,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35271243] [2021-11-23 02:25:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:25:03,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:25:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:25:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-23 02:25:04,886 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:25:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35271243] [2021-11-23 02:25:04,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35271243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:25:04,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:25:04,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:25:04,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234907054] [2021-11-23 02:25:04,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:25:04,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:25:04,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:25:04,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:25:04,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:25:04,889 INFO L87 Difference]: Start difference. First operand 36617 states and 54326 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:25:09,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:30,758 WARN L534 Checker$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 02:25:33,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:35,925 WARN L534 Checker$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 02:25:37,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:40,116 WARN L534 Checker$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 02:25:45,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:49,848 WARN L534 Checker$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 02:25:52,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:54,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:56,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:25:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:25:57,041 INFO L93 Difference]: Finished difference Result 83087 states and 123166 transitions. [2021-11-23 02:25:57,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:25:57,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 501 [2021-11-23 02:25:57,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:25:57,366 INFO L225 Difference]: With dead ends: 83087 [2021-11-23 02:25:57,366 INFO L226 Difference]: Without dead ends: 46532 [2021-11-23 02:25:57,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:25:57,481 INFO L933 BasicCegarLoop]: 16834 mSDtfsCounter, 8641 mSDsluCounter, 46884 mSDsCounter, 0 mSdLazyCounter, 5664 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8644 SdHoareTripleChecker+Valid, 59704 SdHoareTripleChecker+Invalid, 5678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5664 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:25:57,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8644 Valid, 59704 Invalid, 5678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5664 Invalid, 11 Unknown, 0 Unchecked, 50.4s Time] [2021-11-23 02:25:57,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46532 states. [2021-11-23 02:26:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46532 to 46515. [2021-11-23 02:26:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46515 states, 29322 states have (on average 1.3143714617011117) internal successors, (38540), 30023 states have internal predecessors, (38540), 15145 states have call successors, (15145), 2064 states have call predecessors, (15145), 2046 states have return successors, (15215), 14998 states have call predecessors, (15215), 15145 states have call successors, (15215) [2021-11-23 02:26:00,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46515 states to 46515 states and 68900 transitions. [2021-11-23 02:26:00,544 INFO L78 Accepts]: Start accepts. Automaton has 46515 states and 68900 transitions. Word has length 501 [2021-11-23 02:26:00,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:26:00,545 INFO L470 AbstractCegarLoop]: Abstraction has 46515 states and 68900 transitions. [2021-11-23 02:26:00,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:26:00,545 INFO L276 IsEmpty]: Start isEmpty. Operand 46515 states and 68900 transitions. [2021-11-23 02:26:00,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-23 02:26:00,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:26:00,555 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:26:00,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:26:00,556 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:26:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:26:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2141323552, now seen corresponding path program 1 times [2021-11-23 02:26:00,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:26:00,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418464111] [2021-11-23 02:26:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:26:00,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:26:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:26:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2021-11-23 02:26:01,707 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:26:01,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418464111] [2021-11-23 02:26:01,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418464111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:26:01,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:26:01,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:26:01,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41938875] [2021-11-23 02:26:01,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:26:01,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:26:01,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:26:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:26:01,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:26:01,710 INFO L87 Difference]: Start difference. First operand 46515 states and 68900 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:26:06,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:17,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:21,843 WARN L534 Checker$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 02:26:26,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:28,600 WARN L534 Checker$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 02:26:30,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:32,665 WARN L534 Checker$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 02:26:34,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:39,399 WARN L534 Checker$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 02:26:42,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:26:44,769 WARN L534 Checker$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 02:26:48,003 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 02:26:48,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:26:48,924 INFO L93 Difference]: Finished difference Result 110250 states and 165036 transitions. [2021-11-23 02:26:48,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:26:48,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 500 [2021-11-23 02:26:48,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:26:49,364 INFO L225 Difference]: With dead ends: 110250 [2021-11-23 02:26:49,365 INFO L226 Difference]: Without dead ends: 63797 [2021-11-23 02:26:49,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 02:26:49,536 INFO L933 BasicCegarLoop]: 11622 mSDtfsCounter, 3490 mSDsluCounter, 22899 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 942 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3968 SdHoareTripleChecker+Valid, 32502 SdHoareTripleChecker+Invalid, 4132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:26:49,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3968 Valid, 32502 Invalid, 4132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [942 Valid, 3182 Invalid, 8 Unknown, 0 Unchecked, 44.1s Time] [2021-11-23 02:26:49,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63797 states. [2021-11-23 02:26:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63797 to 46521. [2021-11-23 02:26:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46521 states, 29328 states have (on average 1.3143071467539553) internal successors, (38546), 30029 states have internal predecessors, (38546), 15145 states have call successors, (15145), 2064 states have call predecessors, (15145), 2046 states have return successors, (15215), 14998 states have call predecessors, (15215), 15145 states have call successors, (15215) [2021-11-23 02:26:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46521 states to 46521 states and 68906 transitions. [2021-11-23 02:26:54,040 INFO L78 Accepts]: Start accepts. Automaton has 46521 states and 68906 transitions. Word has length 500 [2021-11-23 02:26:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:26:54,041 INFO L470 AbstractCegarLoop]: Abstraction has 46521 states and 68906 transitions. [2021-11-23 02:26:54,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:26:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46521 states and 68906 transitions. [2021-11-23 02:26:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-23 02:26:54,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:26:54,051 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:26:54,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:26:54,052 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:26:54,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:26:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -309399487, now seen corresponding path program 1 times [2021-11-23 02:26:54,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:26:54,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493647929] [2021-11-23 02:26:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:26:54,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:26:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:26:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-23 02:26:55,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:26:55,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493647929] [2021-11-23 02:26:55,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493647929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:26:55,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:26:55,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:26:55,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187933886] [2021-11-23 02:26:55,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:26:55,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:26:55,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:26:55,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:26:55,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:26:55,059 INFO L87 Difference]: Start difference. First operand 46521 states and 68906 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:27:00,531 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 02:27:26,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:30,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:32,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:35,563 WARN L534 Checker$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 02:27:37,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:39,783 WARN L534 Checker$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 02:27:44,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:46,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:48,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:53,284 WARN L534 Checker$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 02:27:55,721 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 02:27:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:56,243 INFO L93 Difference]: Finished difference Result 102718 states and 152055 transitions. [2021-11-23 02:27:56,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:27:56,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 502 [2021-11-23 02:27:56,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:56,510 INFO L225 Difference]: With dead ends: 102718 [2021-11-23 02:27:56,510 INFO L226 Difference]: Without dead ends: 56259 [2021-11-23 02:27:56,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:27:56,799 INFO L933 BasicCegarLoop]: 17165 mSDtfsCounter, 8648 mSDsluCounter, 47614 mSDsCounter, 0 mSdLazyCounter, 5782 mSolverCounterSat, 8 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8651 SdHoareTripleChecker+Valid, 60697 SdHoareTripleChecker+Invalid, 5801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5782 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:56,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8651 Valid, 60697 Invalid, 5801 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5782 Invalid, 11 Unknown, 0 Unchecked, 58.8s Time] [2021-11-23 02:27:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56259 states. [2021-11-23 02:28:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56259 to 56243. [2021-11-23 02:28:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56243 states, 35407 states have (on average 1.312113423899229) internal successors, (46458), 36267 states have internal predecessors, (46458), 18323 states have call successors, (18323), 2536 states have call predecessors, (18323), 2511 states have return successors, (18414), 18128 states have call predecessors, (18414), 18323 states have call successors, (18414) [2021-11-23 02:28:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56243 states to 56243 states and 83195 transitions. [2021-11-23 02:28:00,732 INFO L78 Accepts]: Start accepts. Automaton has 56243 states and 83195 transitions. Word has length 502 [2021-11-23 02:28:00,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:00,733 INFO L470 AbstractCegarLoop]: Abstraction has 56243 states and 83195 transitions. [2021-11-23 02:28:00,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:28:00,733 INFO L276 IsEmpty]: Start isEmpty. Operand 56243 states and 83195 transitions. [2021-11-23 02:28:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-23 02:28:00,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:00,755 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:00,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:28:00,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:00,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1679109418, now seen corresponding path program 1 times [2021-11-23 02:28:00,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:28:00,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779326869] [2021-11-23 02:28:00,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:00,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:28:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-23 02:28:01,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:28:01,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779326869] [2021-11-23 02:28:01,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779326869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:01,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:01,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:28:01,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471151725] [2021-11-23 02:28:01,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:01,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:28:01,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:28:01,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:28:01,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:28:01,483 INFO L87 Difference]: Start difference. First operand 56243 states and 83195 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:28:06,469 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 02:28:24,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:31,047 WARN L534 Checker$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 02:28:33,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:40,187 WARN L534 Checker$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 02:28:42,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:44,389 WARN L534 Checker$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 02:28:48,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:53,017 WARN L534 Checker$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 02:28:55,426 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 02:28:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:55,983 INFO L93 Difference]: Finished difference Result 121451 states and 179684 transitions. [2021-11-23 02:28:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:28:55,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 503 [2021-11-23 02:28:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:56,405 INFO L225 Difference]: With dead ends: 121451 [2021-11-23 02:28:56,406 INFO L226 Difference]: Without dead ends: 65270 [2021-11-23 02:28:56,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:28:56,601 INFO L933 BasicCegarLoop]: 17004 mSDtfsCounter, 8531 mSDsluCounter, 47241 mSDsCounter, 0 mSdLazyCounter, 5717 mSolverCounterSat, 10 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8534 SdHoareTripleChecker+Valid, 60212 SdHoareTripleChecker+Invalid, 5735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 5717 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:56,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8534 Valid, 60212 Invalid, 5735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 5717 Invalid, 8 Unknown, 0 Unchecked, 51.7s Time] [2021-11-23 02:28:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65270 states. [2021-11-23 02:29:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65270 to 65254. [2021-11-23 02:29:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65254 states, 41083 states have (on average 1.3115157120950272) internal successors, (53881), 42084 states have internal predecessors, (53881), 21268 states have call successors, (21268), 2933 states have call predecessors, (21268), 2901 states have return successors, (21380), 21025 states have call predecessors, (21380), 21268 states have call successors, (21380) [2021-11-23 02:29:01,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65254 states to 65254 states and 96529 transitions. [2021-11-23 02:29:01,083 INFO L78 Accepts]: Start accepts. Automaton has 65254 states and 96529 transitions. Word has length 503 [2021-11-23 02:29:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:01,084 INFO L470 AbstractCegarLoop]: Abstraction has 65254 states and 96529 transitions. [2021-11-23 02:29:01,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:29:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 65254 states and 96529 transitions. [2021-11-23 02:29:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-11-23 02:29:01,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:29:01,095 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:01,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 02:29:01,096 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:29:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:29:01,097 INFO L85 PathProgramCache]: Analyzing trace with hash -659580101, now seen corresponding path program 1 times [2021-11-23 02:29:01,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:29:01,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721928085] [2021-11-23 02:29:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:29:01,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:29:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:29:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2887 trivial. 0 not checked. [2021-11-23 02:29:02,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:29:02,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721928085] [2021-11-23 02:29:02,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721928085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:02,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:02,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:29:02,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026812990] [2021-11-23 02:29:02,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:02,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:29:02,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:29:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:29:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:29:02,960 INFO L87 Difference]: Start difference. First operand 65254 states and 96529 transitions. Second operand has 6 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 3 states have call predecessors, (53), 2 states have call successors, (53) [2021-11-23 02:29:11,629 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 02:29:21,673 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 []