./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba --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 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:30:40,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:30:40,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:30:40,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:30:40,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:30:40,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:30:40,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:30:40,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:30:40,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:30:40,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:30:40,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:30:40,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:30:40,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:30:40,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:30:40,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:30:40,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:30:40,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:30:40,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:30:40,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:30:40,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:30:40,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:30:40,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:30:40,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:30:40,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:30:40,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:30:40,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:30:40,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:30:40,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:30:40,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:30:40,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:30:40,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:30:40,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:30:40,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:30:40,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:30:40,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:30:40,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:30:40,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:30:40,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:30:40,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:30:40,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:30:40,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:30:40,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:30:41,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:30:41,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:30:41,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:30:41,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:30:41,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:30:41,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:30:41,047 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:30:41,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:30:41,047 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:30:41,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:30:41,049 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:30:41,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:30:41,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:30:41,050 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:30:41,050 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:30:41,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:30:41,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:30:41,051 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:30:41,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:30:41,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:30:41,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:30:41,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:30:41,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:30:41,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:30:41,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:30:41,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:30:41,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:30:41,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:30:41,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:30:41,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:41,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:30:41,055 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:30:41,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:30:41,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:30:41,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:30:41,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:30:41,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:30:41,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:30:41,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e [2022-11-22 02:30:41,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:30:41,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:30:41,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:30:41,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:30:41,414 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:30:41,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 02:30:44,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:30:45,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:30:45,291 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 02:30:45,351 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/data/5ceb874bf/4284172867e1426bbe7bfd26fe69713b/FLAG387599de5 [2022-11-22 02:30:45,373 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/data/5ceb874bf/4284172867e1426bbe7bfd26fe69713b [2022-11-22 02:30:45,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:30:45,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:30:45,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:45,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:30:45,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:30:45,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:45" (1/1) ... [2022-11-22 02:30:45,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105e5c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:45, skipping insertion in model container [2022-11-22 02:30:45,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:45" (1/1) ... [2022-11-22 02:30:45,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:30:45,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:30:50,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-22 02:30:50,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-22 02:30:50,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:50,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:30:51,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-22 02:30:51,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-22 02:30:51,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:51,924 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:30:51,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51 WrapperNode [2022-11-22 02:30:51,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:51,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:51,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:30:51,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:30:51,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,349 INFO L138 Inliner]: procedures = 661, calls = 3062, calls flagged for inlining = 319, calls inlined = 257, statements flattened = 6150 [2022-11-22 02:30:52,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:52,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:30:52,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:30:52,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:30:52,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:30:52,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:30:52,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:30:52,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:30:52,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (1/1) ... [2022-11-22 02:30:52,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:52,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:52,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:30:52,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:30:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 02:30:52,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 02:30:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 02:30:52,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 02:30:52,881 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 02:30:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 02:30:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:30:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:30:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-22 02:30:52,882 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-22 02:30:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:30:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:30:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-22 02:30:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-22 02:30:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 02:30:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 02:30:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-22 02:30:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-22 02:30:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:30:52,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:30:52,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:30:52,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:30:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-22 02:30:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-22 02:30:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-22 02:30:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-22 02:30:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-22 02:30:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-22 02:30:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 02:30:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 02:30:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:30:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:30:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 02:30:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 02:30:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-22 02:30:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-22 02:30:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:30:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:30:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-22 02:30:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-22 02:30:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-22 02:30:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-22 02:30:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 02:30:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 02:30:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:30:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:30:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:30:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:30:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 02:30:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 02:30:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 02:30:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:30:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:30:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:30:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:30:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-22 02:30:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-22 02:30:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:30:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 02:30:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 02:30:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-22 02:30:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-22 02:30:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-22 02:30:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-22 02:30:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 02:30:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:30:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:30:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-22 02:30:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-22 02:30:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 02:30:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 02:30:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 02:30:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 02:30:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:30:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-22 02:30:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-22 02:30:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:30:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:30:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 02:30:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 02:30:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:30:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:30:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:30:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-22 02:30:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-22 02:30:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:30:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:30:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:30:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-22 02:30:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-22 02:30:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:30:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:30:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 02:30:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 02:30:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:30:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:30:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:30:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:30:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:30:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:30:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-22 02:30:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-22 02:30:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 02:30:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 02:30:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:30:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:30:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-22 02:30:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-22 02:30:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-22 02:30:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-22 02:30:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-22 02:30:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-22 02:30:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:30:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 02:30:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 02:30:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:30:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:30:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 02:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 02:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 02:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 02:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-22 02:30:52,914 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-22 02:30:52,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 02:30:52,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 02:30:52,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-22 02:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-22 02:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:30:52,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 02:30:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 02:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 02:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-22 02:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-22 02:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:30:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:30:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 02:30:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 02:30:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:30:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:30:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-22 02:30:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-22 02:30:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-22 02:30:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-22 02:30:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:30:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:30:52,919 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 02:30:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 02:30:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 02:30:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 02:30:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-22 02:30:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-22 02:30:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-22 02:30:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 02:30:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-22 02:30:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-22 02:30:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:30:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:30:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:30:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-22 02:30:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-22 02:30:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-22 02:30:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-22 02:30:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-22 02:30:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-22 02:30:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-22 02:30:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-22 02:30:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-22 02:30:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-22 02:30:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:30:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:30:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-22 02:30:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-22 02:30:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-22 02:30:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-22 02:30:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-22 02:30:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-22 02:30:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-22 02:30:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-22 02:30:52,925 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-22 02:30:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-22 02:30:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 02:30:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 02:30:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 02:30:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 02:30:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:30:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:30:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:30:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:30:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 02:30:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 02:30:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-22 02:30:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-22 02:30:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-22 02:30:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-22 02:30:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:30:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:30:52,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-22 02:30:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_112 [2022-11-22 02:30:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_112 [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:30:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-22 02:30:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-22 02:30:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-22 02:30:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-22 02:30:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-22 02:30:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-22 02:30:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:30:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-22 02:30:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-22 02:30:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:30:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:30:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 02:30:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 02:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:30:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:30:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:30:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-22 02:30:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-22 02:30:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2022-11-22 02:30:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2022-11-22 02:30:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-22 02:30:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-22 02:30:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_105 [2022-11-22 02:30:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_105 [2022-11-22 02:30:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 02:30:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 02:30:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-22 02:30:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-22 02:30:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 02:30:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 02:30:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-22 02:30:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-22 02:30:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:30:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:30:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:30:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:30:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-22 02:30:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-22 02:30:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-22 02:30:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-22 02:30:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-22 02:30:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-22 02:30:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-22 02:30:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-22 02:30:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:30:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:30:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 02:30:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 02:30:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-22 02:30:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:30:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-22 02:30:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-22 02:30:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-22 02:30:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-22 02:30:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-22 02:30:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-22 02:30:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:30:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:30:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_113 [2022-11-22 02:30:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_113 [2022-11-22 02:30:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:30:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:30:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-22 02:30:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-22 02:30:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 02:30:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 02:30:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-22 02:30:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-22 02:30:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-22 02:30:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-22 02:30:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 02:30:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 02:30:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2022-11-22 02:30:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2022-11-22 02:30:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_106 [2022-11-22 02:30:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_106 [2022-11-22 02:30:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 02:30:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 02:30:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-22 02:30:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-22 02:30:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-22 02:30:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-22 02:30:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:30:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:30:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-22 02:30:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-22 02:30:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-22 02:30:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-22 02:30:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-22 02:30:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-22 02:30:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-22 02:30:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-22 02:30:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-22 02:30:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-22 02:30:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 02:30:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 02:30:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:30:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-22 02:30:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-22 02:30:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:30:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:30:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 02:30:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 02:30:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-22 02:30:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-22 02:30:54,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:30:54,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:30:54,854 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:31:01,610 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:31:01,942 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:31:03,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:31:03,621 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:31:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:03 BoogieIcfgContainer [2022-11-22 02:31:03,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:31:03,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:31:03,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:31:03,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:31:03,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:45" (1/3) ... [2022-11-22 02:31:03,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1a57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:03, skipping insertion in model container [2022-11-22 02:31:03,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:51" (2/3) ... [2022-11-22 02:31:03,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d1a57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:31:03, skipping insertion in model container [2022-11-22 02:31:03,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:31:03" (3/3) ... [2022-11-22 02:31:03,636 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-22 02:31:03,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:31:03,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:31:03,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:31:03,764 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2dcae641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:31:03,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:31:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) [2022-11-22 02:31:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-22 02:31:03,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:03,819 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:03,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash -199345301, now seen corresponding path program 1 times [2022-11-22 02:31:03,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:03,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076838594] [2022-11-22 02:31:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 02:31:04,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:04,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076838594] [2022-11-22 02:31:04,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076838594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:04,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:04,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305877729] [2022-11-22 02:31:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:04,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:04,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:04,922 INFO L87 Difference]: Start difference. First operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 02:31:07,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:10,309 INFO L93 Difference]: Finished difference Result 5611 states and 8180 transitions. [2022-11-22 02:31:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:10,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 234 [2022-11-22 02:31:10,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:10,360 INFO L225 Difference]: With dead ends: 5611 [2022-11-22 02:31:10,360 INFO L226 Difference]: Without dead ends: 3493 [2022-11-22 02:31:10,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:10,383 INFO L413 NwaCegarLoop]: 3124 mSDtfsCounter, 2171 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5632 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:10,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5632 Invalid, 883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 02:31:10,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2022-11-22 02:31:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3491. [2022-11-22 02:31:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1984 states have (on average 1.2857862903225807) internal successors, (2551), 2069 states have internal predecessors, (2551), 1222 states have call successors, (1222), 285 states have call predecessors, (1222), 284 states have return successors, (1223), 1188 states have call predecessors, (1223), 1222 states have call successors, (1223) [2022-11-22 02:31:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4996 transitions. [2022-11-22 02:31:10,789 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4996 transitions. Word has length 234 [2022-11-22 02:31:10,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:10,794 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4996 transitions. [2022-11-22 02:31:10,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 02:31:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4996 transitions. [2022-11-22 02:31:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2022-11-22 02:31:10,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:10,942 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 28, 27, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:10,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:31:10,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 269382325, now seen corresponding path program 1 times [2022-11-22 02:31:10,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:10,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554594912] [2022-11-22 02:31:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:10,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 9864 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9859 trivial. 0 not checked. [2022-11-22 02:31:13,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:13,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554594912] [2022-11-22 02:31:13,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554594912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:13,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:13,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:13,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24291148] [2022-11-22 02:31:13,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:13,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:13,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:13,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:13,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:13,455 INFO L87 Difference]: Start difference. First operand 3491 states and 4996 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-22 02:31:16,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:18,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:18,460 INFO L93 Difference]: Finished difference Result 9859 states and 14082 transitions. [2022-11-22 02:31:18,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:18,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) Word has length 1300 [2022-11-22 02:31:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:18,520 INFO L225 Difference]: With dead ends: 9859 [2022-11-22 02:31:18,520 INFO L226 Difference]: Without dead ends: 6405 [2022-11-22 02:31:18,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:18,541 INFO L413 NwaCegarLoop]: 3620 mSDtfsCounter, 2433 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 6082 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:18,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 6082 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 02:31:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-11-22 02:31:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2022-11-22 02:31:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 3646 states have (on average 1.281404278661547) internal successors, (4672), 3803 states have internal predecessors, (4672), 2217 states have call successors, (2217), 539 states have call predecessors, (2217), 537 states have return successors, (2219), 2153 states have call predecessors, (2219), 2217 states have call successors, (2219) [2022-11-22 02:31:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9108 transitions. [2022-11-22 02:31:18,947 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9108 transitions. Word has length 1300 [2022-11-22 02:31:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:18,949 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 9108 transitions. [2022-11-22 02:31:18,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-22 02:31:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9108 transitions. [2022-11-22 02:31:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2022-11-22 02:31:19,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:19,033 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 30, 28, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:19,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:31:19,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:19,045 INFO L85 PathProgramCache]: Analyzing trace with hash -536567031, now seen corresponding path program 1 times [2022-11-22 02:31:19,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:19,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484481049] [2022-11-22 02:31:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:19,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:21,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10192 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10181 trivial. 0 not checked. [2022-11-22 02:31:21,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:21,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484481049] [2022-11-22 02:31:21,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484481049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:21,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:21,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:21,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787443428] [2022-11-22 02:31:21,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:21,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:21,223 INFO L87 Difference]: Start difference. First operand 6401 states and 9108 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-22 02:31:24,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:27,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:27,076 INFO L93 Difference]: Finished difference Result 15677 states and 22304 transitions. [2022-11-22 02:31:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) Word has length 1347 [2022-11-22 02:31:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:27,142 INFO L225 Difference]: With dead ends: 15677 [2022-11-22 02:31:27,142 INFO L226 Difference]: Without dead ends: 9313 [2022-11-22 02:31:27,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:27,178 INFO L413 NwaCegarLoop]: 4570 mSDtfsCounter, 2434 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 7024 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:27,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 7024 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:31:27,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2022-11-22 02:31:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 9309. [2022-11-22 02:31:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9309 states, 5306 states have (on average 1.2798718431963814) internal successors, (6791), 5535 states have internal predecessors, (6791), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-22 02:31:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9309 states to 9309 states and 13218 transitions. [2022-11-22 02:31:27,798 INFO L78 Accepts]: Start accepts. Automaton has 9309 states and 13218 transitions. Word has length 1347 [2022-11-22 02:31:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:27,801 INFO L495 AbstractCegarLoop]: Abstraction has 9309 states and 13218 transitions. [2022-11-22 02:31:27,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-22 02:31:27,802 INFO L276 IsEmpty]: Start isEmpty. Operand 9309 states and 13218 transitions. [2022-11-22 02:31:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2022-11-22 02:31:27,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:27,898 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:27,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:31:27,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -482056177, now seen corresponding path program 1 times [2022-11-22 02:31:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:27,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247723189] [2022-11-22 02:31:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:27,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-22 02:31:29,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:29,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247723189] [2022-11-22 02:31:29,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247723189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:29,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:29,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:31:29,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563930503] [2022-11-22 02:31:29,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:29,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:31:29,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:31:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:31:29,992 INFO L87 Difference]: Start difference. First operand 9309 states and 13218 transitions. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-22 02:31:36,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:36,813 INFO L93 Difference]: Finished difference Result 26643 states and 39215 transitions. [2022-11-22 02:31:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:31:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 1409 [2022-11-22 02:31:36,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:36,926 INFO L225 Difference]: With dead ends: 26643 [2022-11-22 02:31:36,927 INFO L226 Difference]: Without dead ends: 17371 [2022-11-22 02:31:36,981 INFO L412 NwaCegarLoop]: 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 [2022-11-22 02:31:36,985 INFO L413 NwaCegarLoop]: 4344 mSDtfsCounter, 1941 mSDsluCounter, 7084 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 11428 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:36,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 11428 Invalid, 2396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [453 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 02:31:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17371 states. [2022-11-22 02:31:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17371 to 9313. [2022-11-22 02:31:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9313 states, 5310 states have (on average 1.2796610169491525) internal successors, (6795), 5539 states have internal predecessors, (6795), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-22 02:31:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9313 states to 9313 states and 13222 transitions. [2022-11-22 02:31:38,092 INFO L78 Accepts]: Start accepts. Automaton has 9313 states and 13222 transitions. Word has length 1409 [2022-11-22 02:31:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:38,093 INFO L495 AbstractCegarLoop]: Abstraction has 9313 states and 13222 transitions. [2022-11-22 02:31:38,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-22 02:31:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 9313 states and 13222 transitions. [2022-11-22 02:31:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2022-11-22 02:31:38,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:38,151 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:38,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:31:38,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1660252917, now seen corresponding path program 1 times [2022-11-22 02:31:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:38,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161341977] [2022-11-22 02:31:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-22 02:31:40,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:40,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161341977] [2022-11-22 02:31:40,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161341977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:40,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:40,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:40,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990485097] [2022-11-22 02:31:40,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:40,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:40,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:40,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:40,236 INFO L87 Difference]: Start difference. First operand 9313 states and 13222 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-22 02:31:42,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:31:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:43,685 INFO L93 Difference]: Finished difference Result 18581 states and 26375 transitions. [2022-11-22 02:31:43,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:43,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) Word has length 1411 [2022-11-22 02:31:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:43,733 INFO L225 Difference]: With dead ends: 18581 [2022-11-22 02:31:43,733 INFO L226 Difference]: Without dead ends: 9305 [2022-11-22 02:31:43,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:43,768 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2780 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:43,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 2486 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 02:31:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-11-22 02:31:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9305. [2022-11-22 02:31:44,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9305 states, 5306 states have (on average 1.2791179796456842) internal successors, (6787), 5531 states have internal predecessors, (6787), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-22 02:31:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 13206 transitions. [2022-11-22 02:31:44,413 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 13206 transitions. Word has length 1411 [2022-11-22 02:31:44,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:44,414 INFO L495 AbstractCegarLoop]: Abstraction has 9305 states and 13206 transitions. [2022-11-22 02:31:44,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-22 02:31:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 13206 transitions. [2022-11-22 02:31:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2022-11-22 02:31:44,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:44,471 INFO L195 NwaCegarLoop]: trace histogram [58, 45, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:31:44,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2018443492, now seen corresponding path program 1 times [2022-11-22 02:31:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:44,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612951225] [2022-11-22 02:31:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:44,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 11179 trivial. 0 not checked. [2022-11-22 02:31:46,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:46,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612951225] [2022-11-22 02:31:46,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612951225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:31:46,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745606048] [2022-11-22 02:31:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:46,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:31:46,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:31:46,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:31:46,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:31:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:49,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 10583 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:31:49,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:31:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 2256 proven. 0 refuted. 0 times theorem prover too weak. 8940 trivial. 0 not checked. [2022-11-22 02:31:49,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:31:49,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745606048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:49,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:31:49,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2022-11-22 02:31:49,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272347491] [2022-11-22 02:31:49,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:49,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:49,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:49,580 INFO L87 Difference]: Start difference. First operand 9305 states and 13206 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-22 02:31:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:52,705 INFO L93 Difference]: Finished difference Result 18615 states and 26934 transitions. [2022-11-22 02:31:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) Word has length 1437 [2022-11-22 02:31:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:52,755 INFO L225 Difference]: With dead ends: 18615 [2022-11-22 02:31:52,755 INFO L226 Difference]: Without dead ends: 9347 [2022-11-22 02:31:52,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:52,792 INFO L413 NwaCegarLoop]: 2487 mSDtfsCounter, 4 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:52,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4969 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:31:52,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2022-11-22 02:31:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9311. [2022-11-22 02:31:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9311 states, 5312 states have (on average 1.2788027108433735) internal successors, (6793), 5537 states have internal predecessors, (6793), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-22 02:31:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9311 states to 9311 states and 13212 transitions. [2022-11-22 02:31:53,427 INFO L78 Accepts]: Start accepts. Automaton has 9311 states and 13212 transitions. Word has length 1437 [2022-11-22 02:31:53,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:53,430 INFO L495 AbstractCegarLoop]: Abstraction has 9311 states and 13212 transitions. [2022-11-22 02:31:53,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-22 02:31:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9311 states and 13212 transitions. [2022-11-22 02:31:53,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2022-11-22 02:31:53,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:53,476 INFO L195 NwaCegarLoop]: trace histogram [58, 47, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:53,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:31:53,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:31:53,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:53,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash 740369980, now seen corresponding path program 1 times [2022-11-22 02:31:53,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:53,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923283494] [2022-11-22 02:31:53,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:53,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:31:55,059 INFO L134 CoverageAnalysis]: Checked inductivity of 11448 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11434 trivial. 0 not checked. [2022-11-22 02:31:55,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:31:55,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923283494] [2022-11-22 02:31:55,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923283494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:31:55,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:31:55,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:31:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651060944] [2022-11-22 02:31:55,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:31:55,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:31:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:31:55,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:31:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:55,064 INFO L87 Difference]: Start difference. First operand 9311 states and 13212 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-22 02:31:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:31:57,537 INFO L93 Difference]: Finished difference Result 18675 states and 26990 transitions. [2022-11-22 02:31:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:31:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) Word has length 1461 [2022-11-22 02:31:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:31:57,593 INFO L225 Difference]: With dead ends: 18675 [2022-11-22 02:31:57,593 INFO L226 Difference]: Without dead ends: 9401 [2022-11-22 02:31:57,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:31:57,636 INFO L413 NwaCegarLoop]: 2495 mSDtfsCounter, 9 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:31:57,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4978 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:31:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-22 02:31:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9347. [2022-11-22 02:31:58,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9347 states, 5336 states have (on average 1.2786731634182908) internal successors, (6823), 5561 states have internal predecessors, (6823), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-22 02:31:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9347 states to 9347 states and 13266 transitions. [2022-11-22 02:31:58,197 INFO L78 Accepts]: Start accepts. Automaton has 9347 states and 13266 transitions. Word has length 1461 [2022-11-22 02:31:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:31:58,198 INFO L495 AbstractCegarLoop]: Abstraction has 9347 states and 13266 transitions. [2022-11-22 02:31:58,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-22 02:31:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 9347 states and 13266 transitions. [2022-11-22 02:31:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2022-11-22 02:31:58,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:31:58,247 INFO L195 NwaCegarLoop]: trace histogram [58, 48, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:31:58,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:31:58,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:31:58,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:31:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1079624551, now seen corresponding path program 1 times [2022-11-22 02:31:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:31:58,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350900291] [2022-11-22 02:31:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:31:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:31:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11584 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11570 trivial. 0 not checked. [2022-11-22 02:32:00,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:00,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350900291] [2022-11-22 02:32:00,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350900291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:00,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:00,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:32:00,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775312292] [2022-11-22 02:32:00,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:00,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:00,261 INFO L87 Difference]: Start difference. First operand 9347 states and 13266 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2022-11-22 02:32:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:02,956 INFO L93 Difference]: Finished difference Result 18711 states and 26743 transitions. [2022-11-22 02:32:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:02,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) Word has length 1474 [2022-11-22 02:32:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:03,018 INFO L225 Difference]: With dead ends: 18711 [2022-11-22 02:32:03,019 INFO L226 Difference]: Without dead ends: 9401 [2022-11-22 02:32:03,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:03,065 INFO L413 NwaCegarLoop]: 2491 mSDtfsCounter, 5 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4976 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:03,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4976 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:32:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-22 02:32:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9353. [2022-11-22 02:32:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 5342 states have (on average 1.27836016473231) internal successors, (6829), 5567 states have internal predecessors, (6829), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-22 02:32:03,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 13272 transitions. [2022-11-22 02:32:03,869 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 13272 transitions. Word has length 1474 [2022-11-22 02:32:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:03,871 INFO L495 AbstractCegarLoop]: Abstraction has 9353 states and 13272 transitions. [2022-11-22 02:32:03,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 2 states have call successors, (171), 2 states have call predecessors, (171), 2 states have return successors, (170), 2 states have call predecessors, (170), 2 states have call successors, (170) [2022-11-22 02:32:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 13272 transitions. [2022-11-22 02:32:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1516 [2022-11-22 02:32:03,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:03,942 INFO L195 NwaCegarLoop]: trace histogram [62, 50, 32, 31, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:03,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:32:03,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:03,943 INFO L85 PathProgramCache]: Analyzing trace with hash -769897596, now seen corresponding path program 1 times [2022-11-22 02:32:03,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:03,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462983584] [2022-11-22 02:32:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:03,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12743 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12728 trivial. 0 not checked. [2022-11-22 02:32:06,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:06,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462983584] [2022-11-22 02:32:06,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462983584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:06,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:32:06,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:32:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891278962] [2022-11-22 02:32:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:06,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:06,378 INFO L87 Difference]: Start difference. First operand 9353 states and 13272 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) [2022-11-22 02:32:08,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:10,624 INFO L93 Difference]: Finished difference Result 18699 states and 26713 transitions. [2022-11-22 02:32:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:10,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) Word has length 1515 [2022-11-22 02:32:10,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:10,674 INFO L225 Difference]: With dead ends: 18699 [2022-11-22 02:32:10,674 INFO L226 Difference]: Without dead ends: 9383 [2022-11-22 02:32:10,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:32:10,710 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:10,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4968 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 02:32:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-11-22 02:32:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 9359. [2022-11-22 02:32:11,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 5348 states have (on average 1.2780478683620045) internal successors, (6835), 5573 states have internal predecessors, (6835), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-22 02:32:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 13278 transitions. [2022-11-22 02:32:11,315 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 13278 transitions. Word has length 1515 [2022-11-22 02:32:11,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:11,316 INFO L495 AbstractCegarLoop]: Abstraction has 9359 states and 13278 transitions. [2022-11-22 02:32:11,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (172), 2 states have call predecessors, (172), 2 states have call successors, (172) [2022-11-22 02:32:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 13278 transitions. [2022-11-22 02:32:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2022-11-22 02:32:11,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:11,363 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 33, 32, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:11,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:32:11,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:11,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:11,364 INFO L85 PathProgramCache]: Analyzing trace with hash 134002217, now seen corresponding path program 1 times [2022-11-22 02:32:11,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:11,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456747066] [2022-11-22 02:32:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:11,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 13990 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 13974 trivial. 0 not checked. [2022-11-22 02:32:13,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:13,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456747066] [2022-11-22 02:32:13,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456747066] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:32:13,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313315755] [2022-11-22 02:32:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:13,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:32:13,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:32:13,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:32:13,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:32:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:16,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 11224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:32:16,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:32:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 13990 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 13780 trivial. 0 not checked. [2022-11-22 02:32:16,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:32:16,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313315755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:16,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:32:16,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 02:32:16,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132632776] [2022-11-22 02:32:16,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:16,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:16,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:32:16,719 INFO L87 Difference]: Start difference. First operand 9359 states and 13278 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-22 02:32:19,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:32:22,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:22,507 INFO L93 Difference]: Finished difference Result 22637 states and 32123 transitions. [2022-11-22 02:32:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:22,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) Word has length 1556 [2022-11-22 02:32:22,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:22,588 INFO L225 Difference]: With dead ends: 22637 [2022-11-22 02:32:22,588 INFO L226 Difference]: Without dead ends: 13315 [2022-11-22 02:32:22,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1559 GetRequests, 1556 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:32:22,640 INFO L413 NwaCegarLoop]: 4250 mSDtfsCounter, 2185 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:22,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6600 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-22 02:32:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13315 states. [2022-11-22 02:32:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13315 to 13311. [2022-11-22 02:32:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 7608 states have (on average 1.2718191377497372) internal successors, (9676), 7937 states have internal predecessors, (9676), 4565 states have call successors, (4565), 1143 states have call predecessors, (4565), 1137 states have return successors, (4571), 4426 states have call predecessors, (4571), 4565 states have call successors, (4571) [2022-11-22 02:32:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 18812 transitions. [2022-11-22 02:32:23,782 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 18812 transitions. Word has length 1556 [2022-11-22 02:32:23,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:23,784 INFO L495 AbstractCegarLoop]: Abstraction has 13311 states and 18812 transitions. [2022-11-22 02:32:23,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-22 02:32:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 18812 transitions. [2022-11-22 02:32:23,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2022-11-22 02:32:23,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:23,842 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:23,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:32:24,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:32:24,059 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1236261092, now seen corresponding path program 1 times [2022-11-22 02:32:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:24,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430856212] [2022-11-22 02:32:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:24,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14142 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14113 trivial. 0 not checked. [2022-11-22 02:32:26,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:26,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430856212] [2022-11-22 02:32:26,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430856212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:32:26,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044876260] [2022-11-22 02:32:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:26,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:32:26,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:32:26,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:32:26,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:32:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:29,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 11287 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:32:29,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:32:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14142 trivial. 0 not checked. [2022-11-22 02:32:29,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:32:29,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044876260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:32:29,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:32:29,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 02:32:29,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481891894] [2022-11-22 02:32:29,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:32:29,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:32:29,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:32:29,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:32:29,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:32:29,488 INFO L87 Difference]: Start difference. First operand 13311 states and 18812 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-22 02:32:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:32:33,477 INFO L93 Difference]: Finished difference Result 30556 states and 43856 transitions. [2022-11-22 02:32:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:32:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 1578 [2022-11-22 02:32:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:32:33,572 INFO L225 Difference]: With dead ends: 30556 [2022-11-22 02:32:33,572 INFO L226 Difference]: Without dead ends: 17282 [2022-11-22 02:32:33,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1581 GetRequests, 1578 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:32:33,636 INFO L413 NwaCegarLoop]: 3487 mSDtfsCounter, 709 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 6224 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:32:33,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 6224 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 02:32:33,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2022-11-22 02:32:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 13314. [2022-11-22 02:32:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 7611 states have (on average 1.2717119957955592) internal successors, (9679), 7940 states have internal predecessors, (9679), 4565 states have call successors, (4565), 1143 states have call predecessors, (4565), 1137 states have return successors, (4571), 4426 states have call predecessors, (4571), 4565 states have call successors, (4571) [2022-11-22 02:32:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 18815 transitions. [2022-11-22 02:32:34,477 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 18815 transitions. Word has length 1578 [2022-11-22 02:32:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:32:34,479 INFO L495 AbstractCegarLoop]: Abstraction has 13314 states and 18815 transitions. [2022-11-22 02:32:34,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-22 02:32:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 18815 transitions. [2022-11-22 02:32:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2022-11-22 02:32:34,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:32:34,533 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:32:34,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:32:34,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 02:32:34,753 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:32:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:32:34,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1565951787, now seen corresponding path program 1 times [2022-11-22 02:32:34,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:32:34,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518004878] [2022-11-22 02:32:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:34,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:32:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14121 trivial. 0 not checked. [2022-11-22 02:32:36,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:32:36,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518004878] [2022-11-22 02:32:36,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518004878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:32:36,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81853356] [2022-11-22 02:32:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:32:36,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:32:36,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:32:36,351 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:32:36,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f10222-3fa1-4b0a-ba39-6926cb035013/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:32:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:32:39,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 11321 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 02:32:39,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:32:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 2260 proven. 1 refuted. 0 times theorem prover too weak. 11889 trivial. 0 not checked. [2022-11-22 02:32:39,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:32:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14150 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 14121 trivial. 0 not checked. [2022-11-22 02:32:42,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81853356] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:32:42,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [562326775] [2022-11-22 02:32:42,382 INFO L159 IcfgInterpreter]: Started Sifa with 538 locations of interest [2022-11-22 02:32:42,382 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:32:42,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:32:42,395 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:32:42,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs