./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS --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 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- 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-8393723 [2022-11-19 07:44:06,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:44:06,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:44:06,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:44:06,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:44:06,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:44:06,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:44:06,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:44:06,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:44:06,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:44:06,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:44:06,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:44:06,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:44:06,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:44:06,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:44:06,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:44:06,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:44:06,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:44:06,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:44:06,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:44:06,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:44:06,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:44:06,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:44:06,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:44:06,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:44:06,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:44:06,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:44:06,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:44:06,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:44:06,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:44:06,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:44:06,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:44:06,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:44:06,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:44:06,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:44:06,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:44:06,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:44:06,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:44:06,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:44:06,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:44:06,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:44:06,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:44:06,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:44:06,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:44:06,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:44:06,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:44:06,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:44:06,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:44:06,902 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:44:06,902 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:44:06,903 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:44:06,903 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:44:06,904 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:44:06,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:44:06,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:44:06,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:44:06,905 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:44:06,905 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:44:06,905 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:44:06,906 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:44:06,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:44:06,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:44:06,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:44:06,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:44:06,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:44:06,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:44:06,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:44:06,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:44:06,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:44:06,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:44:06,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:44:06,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:44:06,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:44:06,910 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:44:06,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:44:06,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:44:06,911 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:44:06,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:44:06,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:44:06,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:44:06,912 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2022-11-19 07:44:07,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:44:07,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:44:07,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:44:07,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:44:07,343 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:44:07,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-19 07:44:07,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/data/93a344df3/7d10381b1df649b08765a84a6022e1c2/FLAGa20f3266c [2022-11-19 07:44:08,655 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:44:08,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-19 07:44:08,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/data/93a344df3/7d10381b1df649b08765a84a6022e1c2/FLAGa20f3266c [2022-11-19 07:44:08,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/data/93a344df3/7d10381b1df649b08765a84a6022e1c2 [2022-11-19 07:44:08,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:44:08,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:44:08,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:44:08,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:44:08,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:44:08,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:08" (1/1) ... [2022-11-19 07:44:08,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628e0228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:08, skipping insertion in model container [2022-11-19 07:44:08,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:08" (1/1) ... [2022-11-19 07:44:08,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:44:09,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:44:14,771 WARN L234 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2022-11-19 07:44:14,779 WARN L234 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2022-11-19 07:44:14,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:44:14,921 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:44:15,626 WARN L234 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2022-11-19 07:44:15,627 WARN L234 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_fd1b5716-dde2-433a-a0f5-f7d40829fe46/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2022-11-19 07:44:15,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:44:16,083 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:44:16,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16 WrapperNode [2022-11-19 07:44:16,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:44:16,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:44:16,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:44:16,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:44:16,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:16,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:16,582 INFO L138 Inliner]: procedures = 639, calls = 3635, calls flagged for inlining = 316, calls inlined = 281, statements flattened = 8515 [2022-11-19 07:44:16,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:44:16,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:44:16,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:44:16,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:44:16,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:16,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:16,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:16,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:44:17,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:44:17,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:44:17,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:44:17,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (1/1) ... [2022-11-19 07:44:17,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:44:17,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:44:17,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:44:17,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:44:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 07:44:17,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 07:44:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:44:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:44:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:44:17,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:44:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:44:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:44:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:44:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:44:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:44:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:44:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-19 07:44:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-19 07:44:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2022-11-19 07:44:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2022-11-19 07:44:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 07:44:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 07:44:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:44:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:44:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:44:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:44:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:44:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:44:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2022-11-19 07:44:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2022-11-19 07:44:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 07:44:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 07:44:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2022-11-19 07:44:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2022-11-19 07:44:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2022-11-19 07:44:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2022-11-19 07:44:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:44:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:44:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2022-11-19 07:44:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2022-11-19 07:44:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2022-11-19 07:44:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2022-11-19 07:44:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:44:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:44:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:44:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:44:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:44:17,365 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:44:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:44:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:44:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2022-11-19 07:44:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2022-11-19 07:44:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:44:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:44:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 07:44:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 07:44:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2022-11-19 07:44:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2022-11-19 07:44:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:44:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:44:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:44:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-19 07:44:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-19 07:44:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-19 07:44:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-19 07:44:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 07:44:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 07:44:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:44:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:44:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:44:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2022-11-19 07:44:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2022-11-19 07:44:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:44:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:44:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:44:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:44:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:44:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2022-11-19 07:44:17,375 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2022-11-19 07:44:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:44:17,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:44:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:44:17,376 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2022-11-19 07:44:17,376 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2022-11-19 07:44:17,376 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:44:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:44:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 07:44:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 07:44:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2022-11-19 07:44:17,378 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2022-11-19 07:44:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:44:17,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:44:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2022-11-19 07:44:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2022-11-19 07:44:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:44:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:44:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 07:44:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 07:44:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2022-11-19 07:44:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2022-11-19 07:44:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:44:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:44:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2022-11-19 07:44:17,383 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2022-11-19 07:44:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-19 07:44:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-19 07:44:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:44:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:44:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:44:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:44:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 07:44:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 07:44:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:44:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:44:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-19 07:44:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-19 07:44:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 07:44:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 07:44:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:44:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:44:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:44:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:44:17,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:44:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 07:44:17,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-19 07:44:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:44:17,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:44:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 07:44:17,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 07:44:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2022-11-19 07:44:17,401 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2022-11-19 07:44:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:44:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2022-11-19 07:44:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2022-11-19 07:44:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:44:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:44:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:44:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:44:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:44:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:44:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:44:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-19 07:44:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-19 07:44:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2022-11-19 07:44:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2022-11-19 07:44:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2022-11-19 07:44:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2022-11-19 07:44:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:44:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:44:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:44:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:44:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2022-11-19 07:44:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2022-11-19 07:44:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 07:44:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 07:44:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2022-11-19 07:44:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2022-11-19 07:44:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:44:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:44:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:44:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:44:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2022-11-19 07:44:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2022-11-19 07:44:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:44:17,407 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:44:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:44:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:44:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2022-11-19 07:44:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2022-11-19 07:44:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2022-11-19 07:44:17,408 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2022-11-19 07:44:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:44:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:44:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:44:17,409 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:44:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2022-11-19 07:44:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2022-11-19 07:44:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2022-11-19 07:44:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2022-11-19 07:44:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:44:17,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:44:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 07:44:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 07:44:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2022-11-19 07:44:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2022-11-19 07:44:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:44:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:44:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:44:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:44:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:44:17,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:44:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:44:17,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 07:44:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2022-11-19 07:44:17,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2022-11-19 07:44:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:44:17,413 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:44:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:44:17,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:44:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:44:17,414 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:44:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2022-11-19 07:44:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2022-11-19 07:44:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:44:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:44:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2022-11-19 07:44:17,415 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2022-11-19 07:44:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2022-11-19 07:44:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2022-11-19 07:44:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 07:44:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 07:44:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 07:44:17,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 07:44:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2022-11-19 07:44:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2022-11-19 07:44:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:44:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:44:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:44:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:44:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 07:44:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 07:44:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:44:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:44:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2022-11-19 07:44:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2022-11-19 07:44:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2022-11-19 07:44:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2022-11-19 07:44:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 07:44:17,419 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 07:44:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-19 07:44:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-19 07:44:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:44:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:44:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:44:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:44:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:44:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2022-11-19 07:44:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2022-11-19 07:44:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 07:44:17,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 07:44:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:44:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:44:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2022-11-19 07:44:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2022-11-19 07:44:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:44:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2022-11-19 07:44:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2022-11-19 07:44:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2022-11-19 07:44:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2022-11-19 07:44:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2022-11-19 07:44:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2022-11-19 07:44:17,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-19 07:44:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-19 07:44:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2022-11-19 07:44:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2022-11-19 07:44:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-19 07:44:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-19 07:44:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:44:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2022-11-19 07:44:17,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2022-11-19 07:44:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:44:17,433 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:44:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:44:17,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:44:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:44:17,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:44:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:44:17,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:44:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2022-11-19 07:44:17,434 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2022-11-19 07:44:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2022-11-19 07:44:17,435 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2022-11-19 07:44:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:44:17,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:44:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:44:17,436 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:44:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:44:17,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:44:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2022-11-19 07:44:17,436 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2022-11-19 07:44:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-19 07:44:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-19 07:44:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2022-11-19 07:44:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2022-11-19 07:44:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 07:44:17,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 07:44:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 07:44:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 07:44:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:44:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:44:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 07:44:17,438 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 07:44:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2022-11-19 07:44:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2022-11-19 07:44:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:44:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:44:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 07:44:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 07:44:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2022-11-19 07:44:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2022-11-19 07:44:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:44:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:44:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2022-11-19 07:44:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2022-11-19 07:44:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:44:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-19 07:44:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-19 07:44:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:44:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:44:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:44:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:44:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-19 07:44:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-19 07:44:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:44:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:44:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:44:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:44:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-19 07:44:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-19 07:44:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2022-11-19 07:44:17,444 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2022-11-19 07:44:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2022-11-19 07:44:17,444 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2022-11-19 07:44:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-19 07:44:17,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-19 07:44:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2022-11-19 07:44:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2022-11-19 07:44:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:44:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:44:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2022-11-19 07:44:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2022-11-19 07:44:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 07:44:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 07:44:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:44:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 07:44:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2022-11-19 07:44:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2022-11-19 07:44:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:44:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:44:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-19 07:44:17,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-19 07:44:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2022-11-19 07:44:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2022-11-19 07:44:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:44:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:44:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:44:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-19 07:44:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-19 07:44:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:44:17,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:44:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 07:44:18,998 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:44:19,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:44:19,337 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:44:29,421 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:44:29,701 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:44:32,954 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:44:32,955 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:44:32,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:32 BoogieIcfgContainer [2022-11-19 07:44:32,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:44:32,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:44:32,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:44:32,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:44:32,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:08" (1/3) ... [2022-11-19 07:44:32,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eca7927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:32, skipping insertion in model container [2022-11-19 07:44:32,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:16" (2/3) ... [2022-11-19 07:44:32,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eca7927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:32, skipping insertion in model container [2022-11-19 07:44:32,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:32" (3/3) ... [2022-11-19 07:44:32,976 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-19 07:44:32,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:44:32,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:44:33,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:44:33,135 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;@245e5354, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:44:33,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:44:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 2300 states, 1350 states have (on average 1.2762962962962963) internal successors, (1723), 1392 states have internal predecessors, (1723), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) [2022-11-19 07:44:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-19 07:44:33,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:33,193 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:33,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash -256102435, now seen corresponding path program 1 times [2022-11-19 07:44:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:33,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102336827] [2022-11-19 07:44:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2022-11-19 07:44:34,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:34,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102336827] [2022-11-19 07:44:34,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102336827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:34,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:34,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:34,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698315337] [2022-11-19 07:44:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:34,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:34,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:34,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:34,913 INFO L87 Difference]: Start difference. First operand has 2300 states, 1350 states have (on average 1.2762962962962963) internal successors, (1723), 1392 states have internal predecessors, (1723), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 07:44:38,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:41,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:43,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:43,239 INFO L93 Difference]: Finished difference Result 6133 states and 8793 transitions. [2022-11-19 07:44:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:43,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 282 [2022-11-19 07:44:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:43,294 INFO L225 Difference]: With dead ends: 6133 [2022-11-19 07:44:43,294 INFO L226 Difference]: Without dead ends: 3815 [2022-11-19 07:44:43,319 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 [2022-11-19 07:44:43,323 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 2228 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 6201 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:43,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 6201 Invalid, 977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:44:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2022-11-19 07:44:43,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3810. [2022-11-19 07:44:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3810 states, 2287 states have (on average 1.2719720157411456) internal successors, (2909), 2343 states have internal predecessors, (2909), 1236 states have call successors, (1236), 285 states have call predecessors, (1236), 285 states have return successors, (1236), 1217 states have call predecessors, (1236), 1236 states have call successors, (1236) [2022-11-19 07:44:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5381 transitions. [2022-11-19 07:44:43,709 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5381 transitions. Word has length 282 [2022-11-19 07:44:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:43,713 INFO L495 AbstractCegarLoop]: Abstraction has 3810 states and 5381 transitions. [2022-11-19 07:44:43,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 07:44:43,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5381 transitions. [2022-11-19 07:44:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-19 07:44:43,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:43,730 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:43,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:44:43,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:43,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1518630725, now seen corresponding path program 1 times [2022-11-19 07:44:43,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:43,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583186670] [2022-11-19 07:44:43,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:43,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:44,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2022-11-19 07:44:44,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:44,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583186670] [2022-11-19 07:44:44,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583186670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:44,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:44,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736620733] [2022-11-19 07:44:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:44,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:44,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:44,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:44,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:44,592 INFO L87 Difference]: Start difference. First operand 3810 states and 5381 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 07:44:51,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:51,626 INFO L93 Difference]: Finished difference Result 9611 states and 13494 transitions. [2022-11-19 07:44:51,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:51,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 294 [2022-11-19 07:44:51,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:51,677 INFO L225 Difference]: With dead ends: 9611 [2022-11-19 07:44:51,677 INFO L226 Difference]: Without dead ends: 5850 [2022-11-19 07:44:51,700 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 [2022-11-19 07:44:51,701 INFO L413 NwaCegarLoop]: 3339 mSDtfsCounter, 2385 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 6017 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:51,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 6017 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 07:44:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2022-11-19 07:44:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5844. [2022-11-19 07:44:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 3491 states have (on average 1.2606702950444) internal successors, (4401), 3579 states have internal predecessors, (4401), 1885 states have call successors, (1885), 467 states have call predecessors, (1885), 466 states have return successors, (1886), 1850 states have call predecessors, (1886), 1885 states have call successors, (1886) [2022-11-19 07:44:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 8172 transitions. [2022-11-19 07:44:52,275 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 8172 transitions. Word has length 294 [2022-11-19 07:44:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:52,283 INFO L495 AbstractCegarLoop]: Abstraction has 5844 states and 8172 transitions. [2022-11-19 07:44:52,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-19 07:44:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 8172 transitions. [2022-11-19 07:44:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-19 07:44:52,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:52,294 INFO L195 NwaCegarLoop]: trace histogram [28, 24, 24, 24, 24, 24, 24, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:52,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:44:52,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:44:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash 377277767, now seen corresponding path program 1 times [2022-11-19 07:44:52,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:52,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337856959] [2022-11-19 07:44:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:52,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2430 trivial. 0 not checked. [2022-11-19 07:44:52,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:52,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337856959] [2022-11-19 07:44:52,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337856959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:52,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:52,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:52,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476140512] [2022-11-19 07:44:52,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:52,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:52,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:52,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:52,966 INFO L87 Difference]: Start difference. First operand 5844 states and 8172 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:44:54,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:57,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:59,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:03,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:04,636 INFO L93 Difference]: Finished difference Result 13529 states and 18914 transitions. [2022-11-19 07:45:04,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:04,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 329 [2022-11-19 07:45:04,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:04,696 INFO L225 Difference]: With dead ends: 13529 [2022-11-19 07:45:04,697 INFO L226 Difference]: Without dead ends: 7734 [2022-11-19 07:45:04,732 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 [2022-11-19 07:45:04,736 INFO L413 NwaCegarLoop]: 4578 mSDtfsCounter, 2164 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 7293 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:04,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 7293 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1276 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 07:45:04,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7734 states. [2022-11-19 07:45:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7734 to 7728. [2022-11-19 07:45:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7728 states, 4647 states have (on average 1.2631805465891974) internal successors, (5870), 4753 states have internal predecessors, (5870), 2455 states have call successors, (2455), 625 states have call predecessors, (2455), 624 states have return successors, (2456), 2414 states have call predecessors, (2456), 2455 states have call successors, (2456) [2022-11-19 07:45:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7728 states to 7728 states and 10781 transitions. [2022-11-19 07:45:05,342 INFO L78 Accepts]: Start accepts. Automaton has 7728 states and 10781 transitions. Word has length 329 [2022-11-19 07:45:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:05,344 INFO L495 AbstractCegarLoop]: Abstraction has 7728 states and 10781 transitions. [2022-11-19 07:45:05,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 07:45:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7728 states and 10781 transitions. [2022-11-19 07:45:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-11-19 07:45:05,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:05,357 INFO L195 NwaCegarLoop]: trace histogram [30, 24, 24, 24, 24, 24, 24, 8, 8, 3, 3, 3, 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] [2022-11-19 07:45:05,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:45:05,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1800515510, now seen corresponding path program 1 times [2022-11-19 07:45:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:05,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78311854] [2022-11-19 07:45:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2022-11-19 07:45:06,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:06,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78311854] [2022-11-19 07:45:06,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78311854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:06,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:06,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091864969] [2022-11-19 07:45:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:06,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:06,404 INFO L87 Difference]: Start difference. First operand 7728 states and 10781 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:45:08,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:11,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:13,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:16,896 INFO L93 Difference]: Finished difference Result 18467 states and 25729 transitions. [2022-11-19 07:45:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:16,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 393 [2022-11-19 07:45:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:16,980 INFO L225 Difference]: With dead ends: 18467 [2022-11-19 07:45:16,980 INFO L226 Difference]: Without dead ends: 10788 [2022-11-19 07:45:17,021 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 [2022-11-19 07:45:17,023 INFO L413 NwaCegarLoop]: 4823 mSDtfsCounter, 2906 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:17,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 7165 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1252 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-19 07:45:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2022-11-19 07:45:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 10782. [2022-11-19 07:45:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10782 states, 6475 states have (on average 1.257915057915058) internal successors, (8145), 6618 states have internal predecessors, (8145), 3407 states have call successors, (3407), 900 states have call predecessors, (3407), 898 states have return successors, (3433), 3353 states have call predecessors, (3433), 3407 states have call successors, (3433) [2022-11-19 07:45:17,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10782 states to 10782 states and 14985 transitions. [2022-11-19 07:45:17,645 INFO L78 Accepts]: Start accepts. Automaton has 10782 states and 14985 transitions. Word has length 393 [2022-11-19 07:45:17,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:17,647 INFO L495 AbstractCegarLoop]: Abstraction has 10782 states and 14985 transitions. [2022-11-19 07:45:17,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-19 07:45:17,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10782 states and 14985 transitions. [2022-11-19 07:45:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-11-19 07:45:17,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:17,666 INFO L195 NwaCegarLoop]: trace histogram [32, 24, 24, 24, 24, 24, 24, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:45:17,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:45:17,667 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:17,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1106913161, now seen corresponding path program 1 times [2022-11-19 07:45:17,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:17,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882579778] [2022-11-19 07:45:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:17,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2022-11-19 07:45:18,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:18,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882579778] [2022-11-19 07:45:18,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882579778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:18,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:18,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:18,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604561248] [2022-11-19 07:45:18,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:18,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:18,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:18,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:18,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:18,860 INFO L87 Difference]: Start difference. First operand 10782 states and 14985 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 07:45:24,037 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 [] [2022-11-19 07:45:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:29,048 INFO L93 Difference]: Finished difference Result 23424 states and 32572 transitions. [2022-11-19 07:45:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:29,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 442 [2022-11-19 07:45:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:29,129 INFO L225 Difference]: With dead ends: 23424 [2022-11-19 07:45:29,130 INFO L226 Difference]: Without dead ends: 12691 [2022-11-19 07:45:29,182 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 [2022-11-19 07:45:29,183 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 2189 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 6854 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:29,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 6854 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1147 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-11-19 07:45:29,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12691 states. [2022-11-19 07:45:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12691 to 12685. [2022-11-19 07:45:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12685 states, 7651 states have (on average 1.2607502287282708) internal successors, (9646), 7812 states have internal predecessors, (9646), 3976 states have call successors, (3976), 1058 states have call predecessors, (3976), 1056 states have return successors, (4002), 3916 states have call predecessors, (4002), 3976 states have call successors, (4002) [2022-11-19 07:45:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12685 states to 12685 states and 17624 transitions. [2022-11-19 07:45:29,900 INFO L78 Accepts]: Start accepts. Automaton has 12685 states and 17624 transitions. Word has length 442 [2022-11-19 07:45:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:29,902 INFO L495 AbstractCegarLoop]: Abstraction has 12685 states and 17624 transitions. [2022-11-19 07:45:29,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-19 07:45:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 12685 states and 17624 transitions. [2022-11-19 07:45:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-19 07:45:29,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:29,924 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 26, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:45:29,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:45:29,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:29,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1673267925, now seen corresponding path program 1 times [2022-11-19 07:45:29,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:29,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897079462] [2022-11-19 07:45:29,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:29,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3214 trivial. 0 not checked. [2022-11-19 07:45:32,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897079462] [2022-11-19 07:45:32,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897079462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:32,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:32,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:45:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611242954] [2022-11-19 07:45:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:45:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:45:32,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:45:32,616 INFO L87 Difference]: Start difference. First operand 12685 states and 17624 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-19 07:45:35,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:37,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:40,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:45,553 INFO L93 Difference]: Finished difference Result 33095 states and 47341 transitions. [2022-11-19 07:45:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:45:45,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 480 [2022-11-19 07:45:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:45,676 INFO L225 Difference]: With dead ends: 33095 [2022-11-19 07:45:45,676 INFO L226 Difference]: Without dead ends: 20459 [2022-11-19 07:45:45,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:45:45,733 INFO L413 NwaCegarLoop]: 3942 mSDtfsCounter, 1719 mSDsluCounter, 6700 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 488 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 10642 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:45,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 10642 Invalid, 2109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [488 Valid, 1619 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-19 07:45:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20459 states. [2022-11-19 07:45:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20459 to 12689. [2022-11-19 07:45:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12689 states, 7655 states have (on average 1.2606139777922927) internal successors, (9650), 7816 states have internal predecessors, (9650), 3976 states have call successors, (3976), 1058 states have call predecessors, (3976), 1056 states have return successors, (4002), 3916 states have call predecessors, (4002), 3976 states have call successors, (4002) [2022-11-19 07:45:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12689 states to 12689 states and 17628 transitions. [2022-11-19 07:45:47,027 INFO L78 Accepts]: Start accepts. Automaton has 12689 states and 17628 transitions. Word has length 480 [2022-11-19 07:45:47,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:47,028 INFO L495 AbstractCegarLoop]: Abstraction has 12689 states and 17628 transitions. [2022-11-19 07:45:47,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-19 07:45:47,029 INFO L276 IsEmpty]: Start isEmpty. Operand 12689 states and 17628 transitions. [2022-11-19 07:45:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-19 07:45:47,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:47,046 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:45:47,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:45:47,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:45:47,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash 954505163, now seen corresponding path program 1 times [2022-11-19 07:45:47,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:47,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370691103] [2022-11-19 07:45:47,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:47,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-19 07:45:47,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:47,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370691103] [2022-11-19 07:45:47,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370691103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:47,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:47,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:45:47,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107465800] [2022-11-19 07:45:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:45:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:45:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:45:47,925 INFO L87 Difference]: Start difference. First operand 12689 states and 17628 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:45:52,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:55,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:57,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:59,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:04,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:46:04,737 INFO L93 Difference]: Finished difference Result 27649 states and 38386 transitions. [2022-11-19 07:46:04,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:46:04,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 480 [2022-11-19 07:46:04,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:46:04,821 INFO L225 Difference]: With dead ends: 27649 [2022-11-19 07:46:04,821 INFO L226 Difference]: Without dead ends: 15009 [2022-11-19 07:46:04,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:04,867 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 2221 mSDsluCounter, 11817 mSDsCounter, 0 mSdLazyCounter, 2833 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 16368 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2833 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:46:04,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 16368 Invalid, 2837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2833 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-19 07:46:04,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15009 states. [2022-11-19 07:46:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15009 to 14999. [2022-11-19 07:46:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14999 states, 9061 states have (on average 1.2622227127248649) internal successors, (11437), 9247 states have internal predecessors, (11437), 4675 states have call successors, (4675), 1261 states have call predecessors, (4675), 1261 states have return successors, (4703), 4610 states have call predecessors, (4703), 4675 states have call successors, (4703) [2022-11-19 07:46:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14999 states to 14999 states and 20815 transitions. [2022-11-19 07:46:05,826 INFO L78 Accepts]: Start accepts. Automaton has 14999 states and 20815 transitions. Word has length 480 [2022-11-19 07:46:05,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:46:05,828 INFO L495 AbstractCegarLoop]: Abstraction has 14999 states and 20815 transitions. [2022-11-19 07:46:05,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 14999 states and 20815 transitions. [2022-11-19 07:46:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-19 07:46:05,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:46:05,842 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:46:05,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:46:05,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:46:05,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:46:05,843 INFO L85 PathProgramCache]: Analyzing trace with hash -359802445, now seen corresponding path program 1 times [2022-11-19 07:46:05,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:46:05,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575335255] [2022-11-19 07:46:05,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:46:05,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:46:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:46:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-19 07:46:06,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:46:06,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575335255] [2022-11-19 07:46:06,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575335255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:46:06,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:46:06,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:46:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319057962] [2022-11-19 07:46:06,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:46:06,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:46:06,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:46:06,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:46:06,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:06,736 INFO L87 Difference]: Start difference. First operand 14999 states and 20815 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:10,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:12,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:15,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:19,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:46:25,709 INFO L93 Difference]: Finished difference Result 32237 states and 44712 transitions. [2022-11-19 07:46:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:46:25,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 481 [2022-11-19 07:46:25,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:46:25,806 INFO L225 Difference]: With dead ends: 32237 [2022-11-19 07:46:25,806 INFO L226 Difference]: Without dead ends: 17287 [2022-11-19 07:46:25,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:25,877 INFO L413 NwaCegarLoop]: 4641 mSDtfsCounter, 2226 mSDsluCounter, 11996 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 16637 SdHoareTripleChecker+Invalid, 2896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:46:25,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 16637 Invalid, 2896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2885 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2022-11-19 07:46:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17287 states. [2022-11-19 07:46:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17287 to 17277. [2022-11-19 07:46:26,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17277 states, 10455 states have (on average 1.2631276901004305) internal successors, (13206), 10662 states have internal predecessors, (13206), 5354 states have call successors, (5354), 1464 states have call predecessors, (5354), 1466 states have return successors, (5384), 5284 states have call predecessors, (5384), 5354 states have call successors, (5384) [2022-11-19 07:46:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17277 states to 17277 states and 23944 transitions. [2022-11-19 07:46:27,074 INFO L78 Accepts]: Start accepts. Automaton has 17277 states and 23944 transitions. Word has length 481 [2022-11-19 07:46:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:46:27,075 INFO L495 AbstractCegarLoop]: Abstraction has 17277 states and 23944 transitions. [2022-11-19 07:46:27,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 17277 states and 23944 transitions. [2022-11-19 07:46:27,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-19 07:46:27,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:46:27,090 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:46:27,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:46:27,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:46:27,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:46:27,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1534157421, now seen corresponding path program 1 times [2022-11-19 07:46:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:46:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262110870] [2022-11-19 07:46:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:46:27,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:46:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:46:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-19 07:46:27,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:46:27,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262110870] [2022-11-19 07:46:27,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262110870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:46:27,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:46:27,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:46:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032534067] [2022-11-19 07:46:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:46:27,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:46:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:46:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:46:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:27,866 INFO L87 Difference]: Start difference. First operand 17277 states and 23944 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:30,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:32,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:34,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:39,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:41,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:49,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:46:49,276 INFO L93 Difference]: Finished difference Result 36757 states and 50931 transitions. [2022-11-19 07:46:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:46:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 482 [2022-11-19 07:46:49,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:46:49,371 INFO L225 Difference]: With dead ends: 36757 [2022-11-19 07:46:49,372 INFO L226 Difference]: Without dead ends: 19529 [2022-11-19 07:46:49,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:49,441 INFO L413 NwaCegarLoop]: 4496 mSDtfsCounter, 2183 mSDsluCounter, 11690 mSDsCounter, 0 mSdLazyCounter, 2858 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 16186 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:46:49,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 16186 Invalid, 2869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2858 Invalid, 1 Unknown, 0 Unchecked, 20.4s Time] [2022-11-19 07:46:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19529 states. [2022-11-19 07:46:50,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19529 to 19519. [2022-11-19 07:46:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19519 states, 11826 states have (on average 1.2636563504143412) internal successors, (14944), 12054 states have internal predecessors, (14944), 6027 states have call successors, (6027), 1660 states have call predecessors, (6027), 1664 states have return successors, (6059), 5952 states have call predecessors, (6059), 6027 states have call successors, (6059) [2022-11-19 07:46:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19519 states to 19519 states and 27030 transitions. [2022-11-19 07:46:50,697 INFO L78 Accepts]: Start accepts. Automaton has 19519 states and 27030 transitions. Word has length 482 [2022-11-19 07:46:50,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:46:50,699 INFO L495 AbstractCegarLoop]: Abstraction has 19519 states and 27030 transitions. [2022-11-19 07:46:50,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:50,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19519 states and 27030 transitions. [2022-11-19 07:46:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2022-11-19 07:46:50,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:46:50,715 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:46:50,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:46:50,715 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:46:50,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:46:50,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1762674619, now seen corresponding path program 1 times [2022-11-19 07:46:50,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:46:50,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328851420] [2022-11-19 07:46:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:46:50,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:46:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:46:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-19 07:46:51,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:46:51,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328851420] [2022-11-19 07:46:51,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328851420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:46:51,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:46:51,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:46:51,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676334484] [2022-11-19 07:46:51,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:46:51,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:46:51,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:46:51,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:46:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:46:51,449 INFO L87 Difference]: Start difference. First operand 19519 states and 27030 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:46:54,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:56,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:46:58,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:01,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:03,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:04,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:06,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:08,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:15,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:15,024 INFO L93 Difference]: Finished difference Result 41371 states and 57281 transitions. [2022-11-19 07:47:15,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:47:15,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 483 [2022-11-19 07:47:15,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:15,148 INFO L225 Difference]: With dead ends: 41371 [2022-11-19 07:47:15,148 INFO L226 Difference]: Without dead ends: 21901 [2022-11-19 07:47:15,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:15,222 INFO L413 NwaCegarLoop]: 4404 mSDtfsCounter, 2191 mSDsluCounter, 11524 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 15928 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:15,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 15928 Invalid, 2776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2757 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2022-11-19 07:47:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21901 states. [2022-11-19 07:47:16,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21901 to 21891. [2022-11-19 07:47:16,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21891 states, 13270 states have (on average 1.2629992464204973) internal successors, (16760), 13518 states have internal predecessors, (16760), 6743 states have call successors, (6743), 1870 states have call predecessors, (6743), 1876 states have return successors, (6777), 6664 states have call predecessors, (6777), 6743 states have call successors, (6777) [2022-11-19 07:47:16,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21891 states to 21891 states and 30280 transitions. [2022-11-19 07:47:16,579 INFO L78 Accepts]: Start accepts. Automaton has 21891 states and 30280 transitions. Word has length 483 [2022-11-19 07:47:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:16,581 INFO L495 AbstractCegarLoop]: Abstraction has 21891 states and 30280 transitions. [2022-11-19 07:47:16,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:47:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 21891 states and 30280 transitions. [2022-11-19 07:47:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-19 07:47:16,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:16,600 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 07:47:16,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:47:16,601 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:16,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:16,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1560716998, now seen corresponding path program 1 times [2022-11-19 07:47:16,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:16,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237976806] [2022-11-19 07:47:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:16,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-19 07:47:17,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:17,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237976806] [2022-11-19 07:47:17,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237976806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:17,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:17,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:47:17,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394868306] [2022-11-19 07:47:17,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:17,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:47:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:47:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:17,605 INFO L87 Difference]: Start difference. First operand 21891 states and 30280 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:47:21,268 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 [] [2022-11-19 07:47:23,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:25,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:29,500 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 [] [2022-11-19 07:47:35,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:35,517 INFO L93 Difference]: Finished difference Result 45849 states and 63425 transitions. [2022-11-19 07:47:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:47:35,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 484 [2022-11-19 07:47:35,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:35,616 INFO L225 Difference]: With dead ends: 45849 [2022-11-19 07:47:35,616 INFO L226 Difference]: Without dead ends: 24007 [2022-11-19 07:47:35,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:35,692 INFO L413 NwaCegarLoop]: 4410 mSDtfsCounter, 2184 mSDsluCounter, 11525 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 15935 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:35,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 15935 Invalid, 2793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2773 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-11-19 07:47:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24007 states. [2022-11-19 07:47:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24007 to 23997. [2022-11-19 07:47:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23997 states, 14569 states have (on average 1.2636419795456106) internal successors, (18410), 14835 states have internal predecessors, (18410), 7364 states have call successors, (7364), 2056 states have call predecessors, (7364), 2062 states have return successors, (7398), 7279 states have call predecessors, (7398), 7364 states have call successors, (7398) [2022-11-19 07:47:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23997 states to 23997 states and 33172 transitions. [2022-11-19 07:47:36,792 INFO L78 Accepts]: Start accepts. Automaton has 23997 states and 33172 transitions. Word has length 484 [2022-11-19 07:47:36,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:36,793 INFO L495 AbstractCegarLoop]: Abstraction has 23997 states and 33172 transitions. [2022-11-19 07:47:36,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-19 07:47:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23997 states and 33172 transitions. [2022-11-19 07:47:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2022-11-19 07:47:36,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:36,812 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 26, 13, 13, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:47:36,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:47:36,812 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2020310644, now seen corresponding path program 1 times [2022-11-19 07:47:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:36,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976548980] [2022-11-19 07:47:36,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:36,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:47:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3303 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3253 trivial. 0 not checked. [2022-11-19 07:47:41,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:47:41,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976548980] [2022-11-19 07:47:41,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976548980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:47:41,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:47:41,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:47:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218480735] [2022-11-19 07:47:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:47:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:47:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:47:41,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:47:41,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:41,447 INFO L87 Difference]: Start difference. First operand 23997 states and 33172 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-19 07:47:45,489 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 [] [2022-11-19 07:47:47,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:50,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:47:52,701 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 [] [2022-11-19 07:47:57,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:47:57,091 INFO L93 Difference]: Finished difference Result 47975 states and 66354 transitions. [2022-11-19 07:47:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:47:57,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) Word has length 497 [2022-11-19 07:47:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:47:57,199 INFO L225 Difference]: With dead ends: 47975 [2022-11-19 07:47:57,199 INFO L226 Difference]: Without dead ends: 24027 [2022-11-19 07:47:57,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:47:57,302 INFO L413 NwaCegarLoop]: 2765 mSDtfsCounter, 0 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11028 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:47:57,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11028 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1792 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time] [2022-11-19 07:47:57,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24027 states. [2022-11-19 07:47:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24027 to 24005. [2022-11-19 07:47:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24005 states, 14575 states have (on average 1.2635334476843911) internal successors, (18416), 14841 states have internal predecessors, (18416), 7364 states have call successors, (7364), 2056 states have call predecessors, (7364), 2064 states have return successors, (7407), 7281 states have call predecessors, (7407), 7364 states have call successors, (7407) [2022-11-19 07:47:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24005 states to 24005 states and 33187 transitions. [2022-11-19 07:47:58,597 INFO L78 Accepts]: Start accepts. Automaton has 24005 states and 33187 transitions. Word has length 497 [2022-11-19 07:47:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:47:58,598 INFO L495 AbstractCegarLoop]: Abstraction has 24005 states and 33187 transitions. [2022-11-19 07:47:58,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-19 07:47:58,599 INFO L276 IsEmpty]: Start isEmpty. Operand 24005 states and 33187 transitions. [2022-11-19 07:47:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-11-19 07:47:58,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:47:58,618 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 25, 15, 15, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:47:58,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:47:58,618 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:47:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:47:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2069949517, now seen corresponding path program 1 times [2022-11-19 07:47:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:47:58,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898053502] [2022-11-19 07:47:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:47:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:47:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3392 trivial. 0 not checked. [2022-11-19 07:48:08,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:08,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898053502] [2022-11-19 07:48:08,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898053502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:08,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:08,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:48:08,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878885318] [2022-11-19 07:48:08,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:08,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:48:08,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:48:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:48:08,170 INFO L87 Difference]: Start difference. First operand 24005 states and 33187 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-19 07:48:11,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:13,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:15,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:17,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:24,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:26,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:35,739 INFO L93 Difference]: Finished difference Result 24031 states and 33251 transitions. [2022-11-19 07:48:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:48:35,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 510 [2022-11-19 07:48:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:35,831 INFO L225 Difference]: With dead ends: 24031 [2022-11-19 07:48:35,831 INFO L226 Difference]: Without dead ends: 24029 [2022-11-19 07:48:35,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:48:35,842 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 3052 mSDsluCounter, 6790 mSDsCounter, 0 mSdLazyCounter, 3273 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 9558 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3273 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:35,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 9558 Invalid, 3276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3273 Invalid, 3 Unknown, 0 Unchecked, 24.6s Time] [2022-11-19 07:48:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24029 states. [2022-11-19 07:48:38,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24029 to 24003. [2022-11-19 07:48:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24003 states, 14574 states have (on average 1.262659530671058) internal successors, (18402), 14839 states have internal predecessors, (18402), 7364 states have call successors, (7364), 2056 states have call predecessors, (7364), 2064 states have return successors, (7407), 7281 states have call predecessors, (7407), 7364 states have call successors, (7407) [2022-11-19 07:48:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24003 states to 24003 states and 33173 transitions. [2022-11-19 07:48:38,558 INFO L78 Accepts]: Start accepts. Automaton has 24003 states and 33173 transitions. Word has length 510 [2022-11-19 07:48:38,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:38,559 INFO L495 AbstractCegarLoop]: Abstraction has 24003 states and 33173 transitions. [2022-11-19 07:48:38,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-19 07:48:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 24003 states and 33173 transitions. [2022-11-19 07:48:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-11-19 07:48:38,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:38,582 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 12, 12, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:38,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:48:38,582 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:48:38,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash 330097688, now seen corresponding path program 1 times [2022-11-19 07:48:38,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:38,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964659954] [2022-11-19 07:48:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3254 backedges. 59 proven. 15 refuted. 0 times theorem prover too weak. 3180 trivial. 0 not checked. [2022-11-19 07:48:39,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:39,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964659954] [2022-11-19 07:48:39,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964659954] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:48:39,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942266148] [2022-11-19 07:48:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:39,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:39,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:39,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:39,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:48:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:41,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 5240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:48:41,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3254 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2022-11-19 07:48:42,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:48:42,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942266148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:42,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:48:42,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:48:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269755435] [2022-11-19 07:48:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:42,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:42,052 INFO L87 Difference]: Start difference. First operand 24003 states and 33173 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:48:44,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:47,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:48:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:52,531 INFO L93 Difference]: Finished difference Result 51121 states and 70528 transitions. [2022-11-19 07:48:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:48:52,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 521 [2022-11-19 07:48:52,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:52,655 INFO L225 Difference]: With dead ends: 51121 [2022-11-19 07:48:52,655 INFO L226 Difference]: Without dead ends: 27167 [2022-11-19 07:48:52,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:52,718 INFO L413 NwaCegarLoop]: 3594 mSDtfsCounter, 2984 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:52,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 5852 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 07:48:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27167 states. [2022-11-19 07:48:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27167 to 27161. [2022-11-19 07:48:56,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27161 states, 16493 states have (on average 1.2624143576062572) internal successors, (20821), 16781 states have internal predecessors, (20821), 8272 states have call successors, (8272), 2387 states have call predecessors, (8272), 2395 states have return successors, (8303), 8182 states have call predecessors, (8303), 8272 states have call successors, (8303) [2022-11-19 07:48:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27161 states to 27161 states and 37396 transitions. [2022-11-19 07:48:56,115 INFO L78 Accepts]: Start accepts. Automaton has 27161 states and 37396 transitions. Word has length 521 [2022-11-19 07:48:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:56,116 INFO L495 AbstractCegarLoop]: Abstraction has 27161 states and 37396 transitions. [2022-11-19 07:48:56,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 07:48:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 27161 states and 37396 transitions. [2022-11-19 07:48:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-11-19 07:48:56,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:56,141 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 12, 12, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:56,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:48:56,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b5716-dde2-433a-a0f5-f7d40829fe46/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 07:48:56,362 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:48:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:56,363 INFO L85 PathProgramCache]: Analyzing trace with hash 391214775, now seen corresponding path program 1 times [2022-11-19 07:48:56,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:56,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442607805] [2022-11-19 07:48:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:56,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3232 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 3173 trivial. 0 not checked. [2022-11-19 07:48:56,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:56,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442607805] [2022-11-19 07:48:56,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442607805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:56,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:56,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645660434] [2022-11-19 07:48:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:56,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:48:56,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:56,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:48:56,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:48:56,818 INFO L87 Difference]: Start difference. First operand 27161 states and 37396 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-19 07:49:00,258 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 [] [2022-11-19 07:49:06,674 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 [] [2022-11-19 07:49:12,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:12,413 INFO L93 Difference]: Finished difference Result 56587 states and 77928 transitions. [2022-11-19 07:49:12,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:49:12,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 530 [2022-11-19 07:49:12,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:12,518 INFO L225 Difference]: With dead ends: 56587 [2022-11-19 07:49:12,518 INFO L226 Difference]: Without dead ends: 29475 [2022-11-19 07:49:12,580 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 [2022-11-19 07:49:12,581 INFO L413 NwaCegarLoop]: 4647 mSDtfsCounter, 2276 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 7363 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:12,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 7363 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1275 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 07:49:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29475 states. [2022-11-19 07:49:16,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29475 to 29471. [2022-11-19 07:49:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29471 states, 17895 states have (on average 1.2629226040793518) internal successors, (22600), 18207 states have internal predecessors, (22600), 8977 states have call successors, (8977), 2590 states have call predecessors, (8977), 2598 states have return successors, (9021), 8880 states have call predecessors, (9021), 8977 states have call successors, (9021) [2022-11-19 07:49:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29471 states to 29471 states and 40598 transitions. [2022-11-19 07:49:16,391 INFO L78 Accepts]: Start accepts. Automaton has 29471 states and 40598 transitions. Word has length 530 [2022-11-19 07:49:16,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:16,392 INFO L495 AbstractCegarLoop]: Abstraction has 29471 states and 40598 transitions. [2022-11-19 07:49:16,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-19 07:49:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand 29471 states and 40598 transitions. [2022-11-19 07:49:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2022-11-19 07:49:16,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:16,422 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 13, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:16,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:49:16,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:49:16,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:16,424 INFO L85 PathProgramCache]: Analyzing trace with hash -183099531, now seen corresponding path program 1 times [2022-11-19 07:49:16,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:16,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424137431] [2022-11-19 07:49:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:16,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 3232 trivial. 0 not checked. [2022-11-19 07:49:16,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:16,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424137431] [2022-11-19 07:49:16,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424137431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:49:16,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:49:16,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:49:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832479801] [2022-11-19 07:49:16,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:49:16,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:49:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:49:17,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:49:17,125 INFO L87 Difference]: Start difference. First operand 29471 states and 40598 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 07:49:19,838 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 [] [2022-11-19 07:49:24,199 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 [] [2022-11-19 07:49:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:31,333 INFO L93 Difference]: Finished difference Result 60758 states and 83731 transitions. [2022-11-19 07:49:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:49:31,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 545 [2022-11-19 07:49:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:31,456 INFO L225 Difference]: With dead ends: 60758 [2022-11-19 07:49:31,456 INFO L226 Difference]: Without dead ends: 31336 [2022-11-19 07:49:31,521 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 [2022-11-19 07:49:31,522 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 2155 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:31,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 7302 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1268 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 07:49:31,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31336 states. [2022-11-19 07:49:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31336 to 31332. [2022-11-19 07:49:35,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31332 states, 19033 states have (on average 1.2635948090159197) internal successors, (24050), 19363 states have internal predecessors, (24050), 9544 states have call successors, (9544), 2746 states have call predecessors, (9544), 2754 states have return successors, (9595), 9441 states have call predecessors, (9595), 9544 states have call successors, (9595) [2022-11-19 07:49:35,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31332 states to 31332 states and 43189 transitions. [2022-11-19 07:49:35,246 INFO L78 Accepts]: Start accepts. Automaton has 31332 states and 43189 transitions. Word has length 545 [2022-11-19 07:49:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:35,247 INFO L495 AbstractCegarLoop]: Abstraction has 31332 states and 43189 transitions. [2022-11-19 07:49:35,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 07:49:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 31332 states and 43189 transitions. [2022-11-19 07:49:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2022-11-19 07:49:35,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:35,272 INFO L195 NwaCegarLoop]: trace histogram [37, 24, 24, 24, 24, 24, 24, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 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] [2022-11-19 07:49:35,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:49:35,273 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:49:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1260140095, now seen corresponding path program 1 times [2022-11-19 07:49:35,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:35,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89117190] [2022-11-19 07:49:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:35,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3491 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2022-11-19 07:49:35,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:35,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89117190] [2022-11-19 07:49:35,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89117190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:49:35,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:49:35,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:49:35,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704128643] [2022-11-19 07:49:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:49:35,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:49:35,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:49:35,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:49:35,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:49:35,864 INFO L87 Difference]: Start difference. First operand 31332 states and 43189 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-19 07:49:37,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:40,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:46,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:49,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:49:51,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []