./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW --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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- 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-4e7fbc6 [2022-11-23 14:06:21,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:06:21,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:06:21,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:06:21,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:06:21,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:06:21,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:06:21,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:06:21,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:06:21,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:06:21,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:06:21,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:06:21,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:06:21,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:06:21,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:06:21,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:06:21,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:06:21,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:06:21,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:06:21,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:06:21,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:06:21,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:06:21,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:06:21,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:06:21,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:06:21,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:06:21,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:06:21,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:06:21,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:06:21,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:06:21,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:06:21,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:06:21,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:06:21,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:06:21,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:06:21,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:06:21,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:06:21,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:06:21,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:06:21,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:06:21,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:06:21,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:06:22,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:06:22,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:06:22,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:06:22,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:06:22,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:06:22,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:06:22,036 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:06:22,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:06:22,037 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:06:22,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:06:22,039 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:06:22,039 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:06:22,039 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:06:22,040 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:06:22,040 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:06:22,040 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:06:22,041 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:06:22,041 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:06:22,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:06:22,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:06:22,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:06:22,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:06:22,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:06:22,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:06:22,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:06:22,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:06:22,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:06:22,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:06:22,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:06:22,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:22,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:06:22,047 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:06:22,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:06:22,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:06:22,048 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:06:22,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:06:22,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:06:22,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:06:22,049 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_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-23 14:06:22,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:06:22,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:06:22,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:06:22,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:06:22,390 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:06:22,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-23 14:06:25,566 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:06:26,454 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:06:26,455 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-23 14:06:26,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/data/566b84098/fb18836cf2ff4e0aa5d0cddc2a2413c2/FLAG2ef04af69 [2022-11-23 14:06:26,545 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/data/566b84098/fb18836cf2ff4e0aa5d0cddc2a2413c2 [2022-11-23 14:06:26,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:06:26,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:06:26,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:26,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:06:26,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:06:26,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:26" (1/1) ... [2022-11-23 14:06:26,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503f23f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:26, skipping insertion in model container [2022-11-23 14:06:26,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:26" (1/1) ... [2022-11-23 14:06:26,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:06:26,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:06:31,203 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_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-23 14:06:31,207 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_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-23 14:06:31,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:31,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:06:31,866 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_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-23 14:06:31,867 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_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-23 14:06:31,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:32,185 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:06:32,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32 WrapperNode [2022-11-23 14:06:32,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:32,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:32,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:06:32,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:06:32,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:32,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:32,797 INFO L138 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12126 [2022-11-23 14:06:32,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:32,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:06:32,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:06:32,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:06:32,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:32,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:32,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:32,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,521 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:06:33,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:06:33,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:06:33,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:06:33,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (1/1) ... [2022-11-23 14:06:33,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:33,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:33,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:06:33,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:06:33,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:06:33,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:06:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:06:33,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:06:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 14:06:33,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 14:06:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-23 14:06:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-23 14:06:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:06:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:06:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-23 14:06:33,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-23 14:06:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 14:06:33,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 14:06:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:06:33,825 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:06:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 14:06:33,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 14:06:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:06:33,826 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:06:33,826 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-23 14:06:33,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-23 14:06:33,826 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-23 14:06:33,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-23 14:06:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-23 14:06:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-23 14:06:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-23 14:06:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-23 14:06:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 14:06:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 14:06:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-23 14:06:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-23 14:06:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-23 14:06:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-23 14:06:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:06:33,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:06:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:06:33,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:06:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:06:33,831 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:06:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 14:06:33,831 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 14:06:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-23 14:06:33,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-23 14:06:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 14:06:33,832 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 14:06:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:06:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:06:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:06:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 14:06:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 14:06:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-23 14:06:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-23 14:06:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:06:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:06:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-23 14:06:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-23 14:06:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:06:33,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:06:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:06:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-23 14:06:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-23 14:06:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-23 14:06:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-23 14:06:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:06:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:06:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-23 14:06:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-23 14:06:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:06:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:06:33,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:06:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-23 14:06:33,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-23 14:06:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-23 14:06:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-23 14:06:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:06:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-23 14:06:33,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-23 14:06:33,839 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:06:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:06:33,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 14:06:33,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 14:06:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:06:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:06:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:06:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:06:33,841 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 14:06:33,841 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 14:06:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:06:33,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:06:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:06:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:06:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:06:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:06:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-23 14:06:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-23 14:06:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 14:06:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 14:06:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:06:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:06:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-23 14:06:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-23 14:06:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-23 14:06:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-23 14:06:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-23 14:06:33,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-23 14:06:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:06:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 14:06:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 14:06:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 14:06:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 14:06:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:06:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 14:06:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 14:06:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:06:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:06:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:06:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:06:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:06:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:06:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:06:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-23 14:06:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-23 14:06:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-23 14:06:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-23 14:06:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:06:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:06:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 14:06:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 14:06:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 14:06:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 14:06:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-23 14:06:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-23 14:06:33,858 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 14:06:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 14:06:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-23 14:06:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-23 14:06:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-23 14:06:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-23 14:06:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-23 14:06:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-23 14:06:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 14:06:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 14:06:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:06:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:06:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 14:06:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 14:06:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-23 14:06:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-23 14:06:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-23 14:06:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-23 14:06:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-23 14:06:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-23 14:06:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:06:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:06:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:06:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:06:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-23 14:06:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-23 14:06:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:06:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:06:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 14:06:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 14:06:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:06:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:06:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:06:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:06:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:06:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:06:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 14:06:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 14:06:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 14:06:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 14:06:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 14:06:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 14:06:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-23 14:06:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-23 14:06:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:06:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:06:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-23 14:06:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-23 14:06:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 14:06:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 14:06:33,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:06:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:06:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 14:06:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 14:06:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-23 14:06:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-23 14:06:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-23 14:06:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-23 14:06:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 14:06:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 14:06:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 14:06:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 14:06:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 14:06:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 14:06:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 14:06:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 14:06:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:06:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 14:06:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 14:06:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 14:06:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 14:06:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:06:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-23 14:06:33,870 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-23 14:06:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:06:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 14:06:33,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 14:06:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 14:06:33,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 14:06:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:06:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:06:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:06:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:06:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:06:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:06:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-23 14:06:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-23 14:06:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-23 14:06:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-23 14:06:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 14:06:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 14:06:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-23 14:06:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-23 14:06:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 14:06:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 14:06:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 14:06:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 14:06:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 14:06:33,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 14:06:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:06:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:06:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-23 14:06:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-23 14:06:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 14:06:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 14:06:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:06:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:06:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:06:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-23 14:06:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-23 14:06:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:06:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:06:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-23 14:06:33,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-23 14:06:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 14:06:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 14:06:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-23 14:06:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-23 14:06:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 14:06:33,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 14:06:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-23 14:06:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-23 14:06:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-23 14:06:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-23 14:06:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-23 14:06:33,877 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-23 14:06:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 14:06:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 14:06:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-23 14:06:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-23 14:06:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-23 14:06:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-23 14:06:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-23 14:06:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-23 14:06:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-23 14:06:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-23 14:06:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-23 14:06:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-23 14:06:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:06:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:06:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:06:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:06:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:06:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:06:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-23 14:06:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-23 14:06:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:06:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:06:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:06:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:06:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:06:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 14:06:33,881 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-23 14:06:33,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-23 14:06:35,254 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:06:35,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:06:35,769 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:07:06,352 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:07:10,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:07:10,250 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:07:10,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:10 BoogieIcfgContainer [2022-11-23 14:07:10,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:07:10,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:07:10,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:07:10,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:07:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:26" (1/3) ... [2022-11-23 14:07:10,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f878d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:10, skipping insertion in model container [2022-11-23 14:07:10,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:32" (2/3) ... [2022-11-23 14:07:10,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f878d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:10, skipping insertion in model container [2022-11-23 14:07:10,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:10" (3/3) ... [2022-11-23 14:07:10,269 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-23 14:07:10,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:07:10,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:07:10,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:07:10,411 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;@a839ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:07:10,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:07:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 2367 states, 1339 states have (on average 1.2195668409260643) internal successors, (1633), 1383 states have internal predecessors, (1633), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2022-11-23 14:07:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-23 14:07:10,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:10,459 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:10,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1723827546, now seen corresponding path program 1 times [2022-11-23 14:07:10,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:10,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614369472] [2022-11-23 14:07:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-23 14:07:20,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:20,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614369472] [2022-11-23 14:07:20,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614369472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:20,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:20,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:07:20,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485877109] [2022-11-23 14:07:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:20,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:20,522 INFO L87 Difference]: Start difference. First operand has 2367 states, 1339 states have (on average 1.2195668409260643) internal successors, (1633), 1383 states have internal predecessors, (1633), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:07:25,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:37,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:52,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:55,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:57,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:57,846 INFO L93 Difference]: Finished difference Result 7034 states and 10267 transitions. [2022-11-23 14:07:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:07:57,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2022-11-23 14:07:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:57,899 INFO L225 Difference]: With dead ends: 7034 [2022-11-23 14:07:57,899 INFO L226 Difference]: Without dead ends: 4596 [2022-11-23 14:07:57,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:07:57,927 INFO L413 NwaCegarLoop]: 3988 mSDtfsCounter, 3304 mSDsluCounter, 13164 mSDsCounter, 0 mSdLazyCounter, 3898 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 17152 SdHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3898 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:57,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 17152 Invalid, 3902 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 3898 Invalid, 3 Unknown, 0 Unchecked, 35.7s Time] [2022-11-23 14:07:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-11-23 14:07:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4588. [2022-11-23 14:07:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 2617 states have (on average 1.211692777990065) internal successors, (3171), 2696 states have internal predecessors, (3171), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-23 14:07:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6581 transitions. [2022-11-23 14:07:58,612 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6581 transitions. Word has length 130 [2022-11-23 14:07:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:58,615 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6581 transitions. [2022-11-23 14:07:58,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:07:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6581 transitions. [2022-11-23 14:07:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-23 14:07:58,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:58,633 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:58,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:07:58,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1153200541, now seen corresponding path program 1 times [2022-11-23 14:07:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:58,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058197354] [2022-11-23 14:07:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-23 14:08:06,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:06,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058197354] [2022-11-23 14:08:06,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058197354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:06,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:06,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:06,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471130377] [2022-11-23 14:08:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:06,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:08:06,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:08:06,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:06,056 INFO L87 Difference]: Start difference. First operand 4588 states and 6581 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:08:10,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:13,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:24,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:37,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:39,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:43,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:44,674 INFO L93 Difference]: Finished difference Result 4592 states and 6584 transitions. [2022-11-23 14:08:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:44,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2022-11-23 14:08:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:44,711 INFO L225 Difference]: With dead ends: 4592 [2022-11-23 14:08:44,712 INFO L226 Difference]: Without dead ends: 4590 [2022-11-23 14:08:44,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:44,718 INFO L413 NwaCegarLoop]: 3932 mSDtfsCounter, 3221 mSDsluCounter, 12988 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 16920 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:44,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3225 Valid, 16920 Invalid, 3808 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3802 Invalid, 5 Unknown, 0 Unchecked, 37.3s Time] [2022-11-23 14:08:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2022-11-23 14:08:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4588. [2022-11-23 14:08:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 2617 states have (on average 1.211310661062285) internal successors, (3170), 2696 states have internal predecessors, (3170), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-23 14:08:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6580 transitions. [2022-11-23 14:08:45,678 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6580 transitions. Word has length 151 [2022-11-23 14:08:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:45,682 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6580 transitions. [2022-11-23 14:08:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:08:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6580 transitions. [2022-11-23 14:08:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-23 14:08:45,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:45,700 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-23 14:08:45,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:08:45,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash 333259199, now seen corresponding path program 1 times [2022-11-23 14:08:45,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:45,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437290811] [2022-11-23 14:08:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-11-23 14:08:47,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:47,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437290811] [2022-11-23 14:08:47,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437290811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:47,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:47,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:47,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512666756] [2022-11-23 14:08:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:47,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:47,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:47,676 INFO L87 Difference]: Start difference. First operand 4588 states and 6580 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:08:50,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:55,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:01,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:01,899 INFO L93 Difference]: Finished difference Result 9176 states and 13161 transitions. [2022-11-23 14:09:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:01,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 380 [2022-11-23 14:09:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:01,932 INFO L225 Difference]: With dead ends: 9176 [2022-11-23 14:09:01,933 INFO L226 Difference]: Without dead ends: 4602 [2022-11-23 14:09:01,959 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 [2022-11-23 14:09:01,960 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 6 mSDsluCounter, 2914 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5831 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:01,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5831 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-11-23 14:09:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2022-11-23 14:09:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4590. [2022-11-23 14:09:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 2619 states have (on average 1.2111492936235204) internal successors, (3172), 2698 states have internal predecessors, (3172), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-23 14:09:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6582 transitions. [2022-11-23 14:09:02,788 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6582 transitions. Word has length 380 [2022-11-23 14:09:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:02,788 INFO L495 AbstractCegarLoop]: Abstraction has 4590 states and 6582 transitions. [2022-11-23 14:09:02,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-23 14:09:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6582 transitions. [2022-11-23 14:09:02,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-23 14:09:02,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:02,805 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-23 14:09:02,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:09:02,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:02,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2112476523, now seen corresponding path program 1 times [2022-11-23 14:09:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:02,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608228281] [2022-11-23 14:09:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:02,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-23 14:09:18,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:18,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608228281] [2022-11-23 14:09:18,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608228281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:18,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:18,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:18,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065412466] [2022-11-23 14:09:18,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:18,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:18,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:18,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:18,617 INFO L87 Difference]: Start difference. First operand 4590 states and 6582 transitions. Second operand has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-23 14:09:28,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:40,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:57,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:58,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:11,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:13,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:21,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:29,497 INFO L93 Difference]: Finished difference Result 7101 states and 10209 transitions. [2022-11-23 14:10:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 14:10:29,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) Word has length 382 [2022-11-23 14:10:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:29,548 INFO L225 Difference]: With dead ends: 7101 [2022-11-23 14:10:29,548 INFO L226 Difference]: Without dead ends: 7099 [2022-11-23 14:10:29,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:10:29,555 INFO L413 NwaCegarLoop]: 4727 mSDtfsCounter, 6940 mSDsluCounter, 18642 mSDsCounter, 0 mSdLazyCounter, 11016 mSolverCounterSat, 485 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 23369 SdHoareTripleChecker+Invalid, 11504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 11016 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:29,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6948 Valid, 23369 Invalid, 11504 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [485 Valid, 11016 Invalid, 3 Unknown, 0 Unchecked, 68.2s Time] [2022-11-23 14:10:29,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-11-23 14:10:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 6890. [2022-11-23 14:10:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 3932 states have (on average 1.2115971515768056) internal successors, (4764), 4051 states have internal predecessors, (4764), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 396 states have return successors, (2560), 2518 states have call predecessors, (2560), 2560 states have call successors, (2560) [2022-11-23 14:10:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9884 transitions. [2022-11-23 14:10:30,735 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9884 transitions. Word has length 382 [2022-11-23 14:10:30,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:30,736 INFO L495 AbstractCegarLoop]: Abstraction has 6890 states and 9884 transitions. [2022-11-23 14:10:30,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-23 14:10:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9884 transitions. [2022-11-23 14:10:30,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-23 14:10:30,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:30,755 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:30,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:10:30,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:30,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:30,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1617788541, now seen corresponding path program 1 times [2022-11-23 14:10:30,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:30,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92258862] [2022-11-23 14:10:30,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:30,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-23 14:10:46,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:46,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92258862] [2022-11-23 14:10:46,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92258862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:10:46,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53691572] [2022-11-23 14:10:46,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:46,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:46,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:46,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:10:46,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:10:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:50,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 13658 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 14:10:50,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:11:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-11-23 14:11:50,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:11:50,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53691572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:50,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:11:50,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-23 14:11:50,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830603648] [2022-11-23 14:11:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:50,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:11:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:11:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:11:50,249 INFO L87 Difference]: Start difference. First operand 6890 states and 9884 transitions. Second operand has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2022-11-23 14:11:55,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:11,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:19,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:28,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:34,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:12:37,851 INFO L93 Difference]: Finished difference Result 6897 states and 9896 transitions. [2022-11-23 14:12:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:12:37,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) Word has length 392 [2022-11-23 14:12:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:12:37,930 INFO L225 Difference]: With dead ends: 6897 [2022-11-23 14:12:37,931 INFO L226 Difference]: Without dead ends: 6895 [2022-11-23 14:12:37,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:12:37,937 INFO L413 NwaCegarLoop]: 3672 mSDtfsCounter, 2822 mSDsluCounter, 13478 mSDsCounter, 0 mSdLazyCounter, 6107 mSolverCounterSat, 102 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 17150 SdHoareTripleChecker+Invalid, 6212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 6107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:12:37,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2933 Valid, 17150 Invalid, 6212 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [102 Valid, 6107 Invalid, 3 Unknown, 0 Unchecked, 45.4s Time] [2022-11-23 14:12:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-11-23 14:12:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6890. [2022-11-23 14:12:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 3932 states have (on average 1.2113428280773144) internal successors, (4763), 4051 states have internal predecessors, (4763), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 396 states have return successors, (2560), 2518 states have call predecessors, (2560), 2560 states have call successors, (2560) [2022-11-23 14:12:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9883 transitions. [2022-11-23 14:12:39,524 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9883 transitions. Word has length 392 [2022-11-23 14:12:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:12:39,525 INFO L495 AbstractCegarLoop]: Abstraction has 6890 states and 9883 transitions. [2022-11-23 14:12:39,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2022-11-23 14:12:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9883 transitions. [2022-11-23 14:12:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-23 14:12:39,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:12:39,588 INFO L195 NwaCegarLoop]: trace histogram [45, 13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:12:39,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:12:39,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6388971-2d3c-4cac-bafd-e43f6ade0c2c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:12:39,813 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:12:39,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:12:39,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2026681667, now seen corresponding path program 1 times [2022-11-23 14:12:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:12:39,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588285045] [2022-11-23 14:12:39,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:12:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms