./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI --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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- 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-5e519f3 [2022-11-03 02:47:24,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:47:24,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:47:24,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:47:24,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:47:24,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:47:24,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:47:24,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:47:24,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:47:24,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:47:24,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:47:24,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:47:24,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:47:24,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:47:24,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:47:24,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:47:24,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:47:24,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:47:24,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:47:24,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:47:24,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:47:24,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:47:24,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:47:24,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:47:24,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:47:24,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:47:24,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:47:24,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:47:24,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:47:24,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:47:24,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:47:24,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:47:24,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:47:24,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:47:24,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:47:24,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:47:24,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:47:24,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:47:24,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:47:24,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:47:24,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:47:24,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:47:24,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:47:24,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:47:24,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:47:24,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:47:24,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:47:24,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:47:24,945 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:47:24,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:47:24,946 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:47:24,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:47:24,946 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:47:24,946 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:47:24,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:47:24,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:47:24,947 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:47:24,947 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:47:24,947 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:47:24,948 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:47:24,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:47:24,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:47:24,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:47:24,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:47:24,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:47:24,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:47:24,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:47:24,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:47:24,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:47:24,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:47:24,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:47:24,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:24,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:47:24,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:47:24,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:47:24,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:47:24,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:47:24,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:47:24,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:47:24,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:47:24,952 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_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2022-11-03 02:47:25,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:47:25,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:47:25,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:47:25,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:47:25,305 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:47:25,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-03 02:47:25,386 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/data/35316c238/9762c17a86e94bc7808fc4c911bca045/FLAG29efcc863 [2022-11-03 02:47:26,598 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:47:26,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-03 02:47:26,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/data/35316c238/9762c17a86e94bc7808fc4c911bca045/FLAG29efcc863 [2022-11-03 02:47:26,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/data/35316c238/9762c17a86e94bc7808fc4c911bca045 [2022-11-03 02:47:26,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:47:26,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:47:26,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:26,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:47:26,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:47:26,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:26" (1/1) ... [2022-11-03 02:47:26,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454c2581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:26, skipping insertion in model container [2022-11-03 02:47:26,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:26" (1/1) ... [2022-11-03 02:47:26,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:47:26,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:47:31,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-03 02:47:31,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-03 02:47:31,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:31,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:47:31,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-03 02:47:31,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-03 02:47:31,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:32,083 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:47:32,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32 WrapperNode [2022-11-03 02:47:32,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:32,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:32,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:47:32,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:47:32,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,446 INFO L138 Inliner]: procedures = 533, calls = 2779, calls flagged for inlining = 243, calls inlined = 223, statements flattened = 6822 [2022-11-03 02:47:32,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:32,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:47:32,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:47:32,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:47:32,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:47:32,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:47:32,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:47:32,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:47:32,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (1/1) ... [2022-11-03 02:47:32,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:32,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:33,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:47:33,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:47:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_handler_adjust [2022-11-03 02:47:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_handler_adjust [2022-11-03 02:47:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:47:33,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:47:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-03 02:47:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-03 02:47:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_core_destroy [2022-11-03 02:47:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_core_destroy [2022-11-03 02:47:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:47:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:47:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 02:47:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 02:47:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_watermark_intr_disable [2022-11-03 02:47:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_watermark_intr_disable [2022-11-03 02:47:33,054 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:47:33,054 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:47:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_recv_next [2022-11-03 02:47:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_recv_next [2022-11-03 02:47:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 02:47:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 02:47:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_send_next [2022-11-03 02:47:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_send_next [2022-11-03 02:47:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:47:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:47:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_ce_deinit [2022-11-03 02:47:33,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_ce_deinit [2022-11-03 02:47:33,056 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_start [2022-11-03 02:47:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_start [2022-11-03 02:47:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_resume [2022-11-03 02:47:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_resume [2022-11-03 02:47:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:47:33,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:47:33,057 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_read32 [2022-11-03 02:47:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_read32 [2022-11-03 02:47:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 02:47:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 02:47:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:47:33,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:47:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-03 02:47:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-03 02:47:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-03 02:47:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-03 02:47:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:47:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-03 02:47:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-03 02:47:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_mem [2022-11-03 02:47:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_mem [2022-11-03 02:47:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:47:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:47:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:47:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:47:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_base_address [2022-11-03 02:47:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_base_address [2022-11-03 02:47:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_access [2022-11-03 02:47:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_access [2022-11-03 02:47:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 02:47:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 02:47:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:47:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:47:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:47:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:47:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:47:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:47:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:47:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:47:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:47:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:47:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:47:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_84 [2022-11-03 02:47:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_84 [2022-11-03 02:47:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:47:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:47:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:47:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:47:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_86 [2022-11-03 02:47:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_86 [2022-11-03 02:47:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-11-03 02:47:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-11-03 02:47:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:47:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:47:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:47:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:47:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_wake [2022-11-03 02:47:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_wake [2022-11-03 02:47:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:47:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:47:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:47:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:47:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_copy_complete_intr_disable [2022-11-03 02:47:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_copy_complete_intr_disable [2022-11-03 02:47:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_compl [2022-11-03 02:47:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_compl [2022-11-03 02:47:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_process_ce [2022-11-03 02:47:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_process_ce [2022-11-03 02:47:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_read32 [2022-11-03 02:47:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_read32 [2022-11-03 02:47:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:47:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:47:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:47:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:47:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:47:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:47:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_wake [2022-11-03 02:47:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_wake [2022-11-03 02:47:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_cleanup_ce [2022-11-03 02:47:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_cleanup_ce [2022-11-03 02:47:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_disable_interrupts [2022-11-03 02:47:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_disable_interrupts [2022-11-03 02:47:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:47:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:47:33,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:47:33,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:47:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:47:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_sleep [2022-11-03 02:47:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_sleep [2022-11-03 02:47:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-03 02:47:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-03 02:47:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 02:47:33,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 02:47:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:47:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:47:33,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:47:33,073 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:47:33,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:47:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_request_early_irq [2022-11-03 02:47:33,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_request_early_irq [2022-11-03 02:47:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:47:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 02:47:33,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 02:47:33,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:47:33,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:47:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_write32 [2022-11-03 02:47:33,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_write32 [2022-11-03 02:47:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:47:33,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:47:33,075 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-03 02:47:33,076 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-03 02:47:33,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:47:33,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:47:33,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:47:33,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:47:33,076 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_get_free_queue_number [2022-11-03 02:47:33,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_get_free_queue_number [2022-11-03 02:47:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_stop [2022-11-03 02:47:33,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_stop [2022-11-03 02:47:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_recv_buf_enqueue [2022-11-03 02:47:33,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_recv_buf_enqueue [2022-11-03 02:47:33,077 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_priv [2022-11-03 02:47:33,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_priv [2022-11-03 02:47:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:47:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:47:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:47:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:47:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_deinit [2022-11-03 02:47:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_deinit [2022-11-03 02:47:33,078 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2022-11-03 02:47:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2022-11-03 02:47:33,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:47:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:47:33,079 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_rx_pipe_cleanup [2022-11-03 02:47:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_rx_pipe_cleanup [2022-11-03 02:47:33,079 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_revoke_recv_next [2022-11-03 02:47:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_revoke_recv_next [2022-11-03 02:47:33,080 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2022-11-03 02:47:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2022-11-03 02:47:33,080 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 02:47:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 02:47:33,080 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_stop_ce [2022-11-03 02:47:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_stop_ce [2022-11-03 02:47:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_device_reset [2022-11-03 02:47:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_device_reset [2022-11-03 02:47:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:47:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:47:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:47:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:47:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:47:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:47:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_post_rx_pipe [2022-11-03 02:47:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_post_rx_pipe [2022-11-03 02:47:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_irq [2022-11-03 02:47:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_irq [2022-11-03 02:47:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:47:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:47:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-11-03 02:47:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-11-03 02:47:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_down [2022-11-03 02:47:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_down [2022-11-03 02:47:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:47:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:47:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_service [2022-11-03 02:47:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_service [2022-11-03 02:47:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:47:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:47:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:47:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:47:33,085 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_send [2022-11-03 02:47:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_send [2022-11-03 02:47:33,085 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_suspend [2022-11-03 02:47:33,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_suspend [2022-11-03 02:47:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:47:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:47:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-03 02:47:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-03 02:47:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 02:47:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 02:47:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:47:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:47:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:47:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_src_ring_read_index_get [2022-11-03 02:47:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_src_ring_read_index_get [2022-11-03 02:47:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure ATH10K_SKB_CB [2022-11-03 02:47:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ATH10K_SKB_CB [2022-11-03 02:47:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_early_irq [2022-11-03 02:47:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_early_irq [2022-11-03 02:47:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:47:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 02:47:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 02:47:33,088 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_sleep [2022-11-03 02:47:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_sleep [2022-11-03 02:47:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_kill_tasklet [2022-11-03 02:47:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_kill_tasklet [2022-11-03 02:47:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_remove [2022-11-03 02:47:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_remove [2022-11-03 02:47:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:47:33,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:47:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:47:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-03 02:47:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-03 02:47:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:47:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:47:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:47:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:47:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_irq_pending [2022-11-03 02:47:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_irq_pending [2022-11-03 02:47:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:47:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:47:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:47:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:47:33,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 02:47:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 02:47:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:47:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:47:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 02:47:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 02:47:33,092 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:47:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:47:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-11-03 02:47:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-11-03 02:47:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_85 [2022-11-03 02:47:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_85 [2022-11-03 02:47:33,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_83 [2022-11-03 02:47:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_83 [2022-11-03 02:47:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_write32 [2022-11-03 02:47:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_write32 [2022-11-03 02:47:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-03 02:47:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-03 02:47:33,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_block [2022-11-03 02:47:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_block [2022-11-03 02:47:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:47:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:47:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:47:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:47:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:47:33,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2022-11-03 02:47:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2022-11-03 02:47:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:47:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:47:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:47:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 02:47:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:47:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:47:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_dbg_dump [2022-11-03 02:47:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_dbg_dump [2022-11-03 02:47:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-03 02:47:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-03 02:47:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_up [2022-11-03 02:47:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_up [2022-11-03 02:47:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:47:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:47:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_deinit_irq [2022-11-03 02:47:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_deinit_irq [2022-11-03 02:47:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2022-11-03 02:47:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2022-11-03 02:47:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 02:47:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 02:47:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure host_interest_item_address [2022-11-03 02:47:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure host_interest_item_address [2022-11-03 02:47:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2022-11-03 02:47:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2022-11-03 02:47:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:47:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-03 02:47:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 02:47:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 02:47:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_cancel_send_next [2022-11-03 02:47:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_cancel_send_next [2022-11-03 02:47:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:47:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:47:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:47:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_engine_int_status_clear [2022-11-03 02:47:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_engine_int_status_clear [2022-11-03 02:47:34,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:47:34,354 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:47:34,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:47:46,128 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:47:46,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:47:48,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:47:48,127 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 02:47:48,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:48 BoogieIcfgContainer [2022-11-03 02:47:48,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:47:48,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:47:48,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:47:48,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:47:48,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:47:26" (1/3) ... [2022-11-03 02:47:48,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea46016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:48, skipping insertion in model container [2022-11-03 02:47:48,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:32" (2/3) ... [2022-11-03 02:47:48,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea46016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:48, skipping insertion in model container [2022-11-03 02:47:48,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:48" (3/3) ... [2022-11-03 02:47:48,143 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-03 02:47:48,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:47:48,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:47:48,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:47:48,288 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;@74527cd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:47:48,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:47:48,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) [2022-11-03 02:47:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-03 02:47:48,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:48,371 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:48,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:48,379 INFO L85 PathProgramCache]: Analyzing trace with hash 973588671, now seen corresponding path program 1 times [2022-11-03 02:47:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:48,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027747870] [2022-11-03 02:47:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:49,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027747870] [2022-11-03 02:47:49,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027747870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:49,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:49,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191581680] [2022-11-03 02:47:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:49,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:49,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:49,568 INFO L87 Difference]: Start difference. First operand has 2073 states, 1194 states have (on average 1.295644891122278) internal successors, (1547), 1241 states have internal predecessors, (1547), 741 states have call successors, (741), 142 states have call predecessors, (741), 141 states have return successors, (732), 726 states have call predecessors, (732), 732 states have call successors, (732) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:51,445 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 [] [2022-11-03 02:47:54,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:58,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:01,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:03,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:05,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:05,809 INFO L93 Difference]: Finished difference Result 5980 states and 8790 transitions. [2022-11-03 02:48:05,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:05,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 186 [2022-11-03 02:48:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:05,870 INFO L225 Difference]: With dead ends: 5980 [2022-11-03 02:48:05,872 INFO L226 Difference]: Without dead ends: 3872 [2022-11-03 02:48:05,901 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 [2022-11-03 02:48:05,906 INFO L413 NwaCegarLoop]: 3476 mSDtfsCounter, 2706 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:05,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 6108 Invalid, 717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 696 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2022-11-03 02:48:05,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2022-11-03 02:48:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3869. [2022-11-03 02:48:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 2250 states have (on average 1.2835555555555556) internal successors, (2888), 2325 states have internal predecessors, (2888), 1345 states have call successors, (1345), 273 states have call predecessors, (1345), 273 states have return successors, (1350), 1332 states have call predecessors, (1350), 1345 states have call successors, (1350) [2022-11-03 02:48:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 5583 transitions. [2022-11-03 02:48:06,488 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 5583 transitions. Word has length 186 [2022-11-03 02:48:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:06,492 INFO L495 AbstractCegarLoop]: Abstraction has 3869 states and 5583 transitions. [2022-11-03 02:48:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:48:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 5583 transitions. [2022-11-03 02:48:06,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-03 02:48:06,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:06,522 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 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] [2022-11-03 02:48:06,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:48:06,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash 738020420, now seen corresponding path program 1 times [2022-11-03 02:48:06,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:06,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296754611] [2022-11-03 02:48:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-03 02:48:06,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:06,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296754611] [2022-11-03 02:48:06,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296754611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:06,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:06,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:06,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744167205] [2022-11-03 02:48:06,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:06,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:06,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:06,992 INFO L87 Difference]: Start difference. First operand 3869 states and 5583 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:48:08,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:11,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:13,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:17,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:18,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:21,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:24,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:26,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:26,923 INFO L93 Difference]: Finished difference Result 9495 states and 13697 transitions. [2022-11-03 02:48:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 233 [2022-11-03 02:48:26,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:26,982 INFO L225 Difference]: With dead ends: 9495 [2022-11-03 02:48:26,982 INFO L226 Difference]: Without dead ends: 5657 [2022-11-03 02:48:27,011 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 [2022-11-03 02:48:27,013 INFO L413 NwaCegarLoop]: 4879 mSDtfsCounter, 2530 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 7443 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:27,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 7443 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 929 Invalid, 5 Unknown, 0 Unchecked, 19.5s Time] [2022-11-03 02:48:27,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states. [2022-11-03 02:48:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 5652. [2022-11-03 02:48:27,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5652 states, 3282 states have (on average 1.2806215722120657) internal successors, (4203), 3393 states have internal predecessors, (4203), 1964 states have call successors, (1964), 406 states have call predecessors, (1964), 405 states have return successors, (1974), 1942 states have call predecessors, (1974), 1964 states have call successors, (1974) [2022-11-03 02:48:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5652 states to 5652 states and 8141 transitions. [2022-11-03 02:48:27,458 INFO L78 Accepts]: Start accepts. Automaton has 5652 states and 8141 transitions. Word has length 233 [2022-11-03 02:48:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:27,460 INFO L495 AbstractCegarLoop]: Abstraction has 5652 states and 8141 transitions. [2022-11-03 02:48:27,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-03 02:48:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5652 states and 8141 transitions. [2022-11-03 02:48:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-03 02:48:27,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:27,470 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 3, 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] [2022-11-03 02:48:27,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:48:27,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash -787524890, now seen corresponding path program 1 times [2022-11-03 02:48:27,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:27,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567098876] [2022-11-03 02:48:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2022-11-03 02:48:28,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:28,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567098876] [2022-11-03 02:48:28,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567098876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:28,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:28,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296969999] [2022-11-03 02:48:28,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:28,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:28,055 INFO L87 Difference]: Start difference. First operand 5652 states and 8141 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 02:48:29,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:31,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:35,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:37,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:39,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:42,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:42,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:42,881 INFO L93 Difference]: Finished difference Result 13408 states and 19295 transitions. [2022-11-03 02:48:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 240 [2022-11-03 02:48:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:42,948 INFO L225 Difference]: With dead ends: 13408 [2022-11-03 02:48:42,948 INFO L226 Difference]: Without dead ends: 7787 [2022-11-03 02:48:42,984 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 [2022-11-03 02:48:42,988 INFO L413 NwaCegarLoop]: 4530 mSDtfsCounter, 2420 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:42,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 7077 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 897 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-03 02:48:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2022-11-03 02:48:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 7778. [2022-11-03 02:48:43,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 4547 states have (on average 1.2766659335825818) internal successors, (5805), 4708 states have internal predecessors, (5805), 2665 states have call successors, (2665), 567 states have call predecessors, (2665), 565 states have return successors, (2680), 2628 states have call predecessors, (2680), 2665 states have call successors, (2680) [2022-11-03 02:48:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 11150 transitions. [2022-11-03 02:48:43,619 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 11150 transitions. Word has length 240 [2022-11-03 02:48:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:43,619 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 11150 transitions. [2022-11-03 02:48:43,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 02:48:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 11150 transitions. [2022-11-03 02:48:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-03 02:48:43,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:43,632 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 3, 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] [2022-11-03 02:48:43,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:48:43,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1797220059, now seen corresponding path program 1 times [2022-11-03 02:48:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251200964] [2022-11-03 02:48:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2022-11-03 02:48:44,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:44,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251200964] [2022-11-03 02:48:44,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251200964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:44,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:44,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:44,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520373241] [2022-11-03 02:48:44,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:44,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:44,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:44,130 INFO L87 Difference]: Start difference. First operand 7778 states and 11150 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 02:48:45,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:47,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:50,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:54,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:56,386 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 [] [2022-11-03 02:48:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:56,620 INFO L93 Difference]: Finished difference Result 15748 states and 22530 transitions. [2022-11-03 02:48:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:56,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 255 [2022-11-03 02:48:56,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:56,674 INFO L225 Difference]: With dead ends: 15748 [2022-11-03 02:48:56,674 INFO L226 Difference]: Without dead ends: 8001 [2022-11-03 02:48:56,709 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 [2022-11-03 02:48:56,710 INFO L413 NwaCegarLoop]: 2643 mSDtfsCounter, 262 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:56,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 5216 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 639 Invalid, 4 Unknown, 0 Unchecked, 12.2s Time] [2022-11-03 02:48:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2022-11-03 02:48:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 8001. [2022-11-03 02:48:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8001 states, 4694 states have (on average 1.273753728163613) internal successors, (5979), 4857 states have internal predecessors, (5979), 2714 states have call successors, (2714), 594 states have call predecessors, (2714), 592 states have return successors, (2729), 2677 states have call predecessors, (2729), 2714 states have call successors, (2729) [2022-11-03 02:48:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8001 states to 8001 states and 11422 transitions. [2022-11-03 02:48:57,215 INFO L78 Accepts]: Start accepts. Automaton has 8001 states and 11422 transitions. Word has length 255 [2022-11-03 02:48:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:57,216 INFO L495 AbstractCegarLoop]: Abstraction has 8001 states and 11422 transitions. [2022-11-03 02:48:57,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 02:48:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 8001 states and 11422 transitions. [2022-11-03 02:48:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-03 02:48:57,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:57,230 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 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] [2022-11-03 02:48:57,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:48:57,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:57,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:57,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1586378558, now seen corresponding path program 1 times [2022-11-03 02:48:57,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:57,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874043018] [2022-11-03 02:48:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:57,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2022-11-03 02:48:57,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:57,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874043018] [2022-11-03 02:48:57,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874043018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:57,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:57,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:57,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876264467] [2022-11-03 02:48:57,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:57,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:57,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:57,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:57,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:57,673 INFO L87 Difference]: Start difference. First operand 8001 states and 11422 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:48:59,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:01,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:02,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:05,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:08,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:11,015 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 [] [2022-11-03 02:49:11,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:11,523 INFO L93 Difference]: Finished difference Result 17961 states and 25645 transitions. [2022-11-03 02:49:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:49:11,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 278 [2022-11-03 02:49:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:11,596 INFO L225 Difference]: With dead ends: 17961 [2022-11-03 02:49:11,596 INFO L226 Difference]: Without dead ends: 10168 [2022-11-03 02:49:11,636 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 [2022-11-03 02:49:11,637 INFO L413 NwaCegarLoop]: 4766 mSDtfsCounter, 2435 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:11,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 7302 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 957 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-03 02:49:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10168 states. [2022-11-03 02:49:12,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10168 to 10160. [2022-11-03 02:49:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10160 states, 5973 states have (on average 1.271555332328813) internal successors, (7595), 6186 states have internal predecessors, (7595), 3423 states have call successors, (3423), 765 states have call predecessors, (3423), 763 states have return successors, (3443), 3372 states have call predecessors, (3443), 3423 states have call successors, (3443) [2022-11-03 02:49:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10160 states to 10160 states and 14461 transitions. [2022-11-03 02:49:12,321 INFO L78 Accepts]: Start accepts. Automaton has 10160 states and 14461 transitions. Word has length 278 [2022-11-03 02:49:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:12,322 INFO L495 AbstractCegarLoop]: Abstraction has 10160 states and 14461 transitions. [2022-11-03 02:49:12,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 02:49:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10160 states and 14461 transitions. [2022-11-03 02:49:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-03 02:49:12,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:12,335 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 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, 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] [2022-11-03 02:49:12,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:49:12,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:12,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:12,336 INFO L85 PathProgramCache]: Analyzing trace with hash 647851938, now seen corresponding path program 1 times [2022-11-03 02:49:12,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:12,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677122897] [2022-11-03 02:49:12,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:12,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-03 02:49:18,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:18,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677122897] [2022-11-03 02:49:18,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677122897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:18,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:18,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:49:18,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804890785] [2022-11-03 02:49:18,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:18,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:49:18,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:18,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:49:18,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:49:18,414 INFO L87 Difference]: Start difference. First operand 10160 states and 14461 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:49:23,565 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 [] [2022-11-03 02:49:26,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:29,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:32,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:40,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:42,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:45,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:45,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:45,961 INFO L93 Difference]: Finished difference Result 17662 states and 25157 transitions. [2022-11-03 02:49:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:49:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2022-11-03 02:49:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:46,080 INFO L225 Difference]: With dead ends: 17662 [2022-11-03 02:49:46,081 INFO L226 Difference]: Without dead ends: 17660 [2022-11-03 02:49:46,093 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 [2022-11-03 02:49:46,095 INFO L413 NwaCegarLoop]: 3161 mSDtfsCounter, 2035 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 6 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 14120 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:46,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 14120 Invalid, 2815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2802 Invalid, 7 Unknown, 0 Unchecked, 25.7s Time] [2022-11-03 02:49:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17660 states. [2022-11-03 02:49:47,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17660 to 17628. [2022-11-03 02:49:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17628 states, 10409 states have (on average 1.2718801037563647) internal successors, (13239), 10824 states have internal predecessors, (13239), 5849 states have call successors, (5849), 1413 states have call predecessors, (5849), 1369 states have return successors, (6013), 5643 states have call predecessors, (6013), 5849 states have call successors, (6013) [2022-11-03 02:49:48,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17628 states to 17628 states and 25101 transitions. [2022-11-03 02:49:48,089 INFO L78 Accepts]: Start accepts. Automaton has 17628 states and 25101 transitions. Word has length 297 [2022-11-03 02:49:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:48,090 INFO L495 AbstractCegarLoop]: Abstraction has 17628 states and 25101 transitions. [2022-11-03 02:49:48,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 02:49:48,091 INFO L276 IsEmpty]: Start isEmpty. Operand 17628 states and 25101 transitions. [2022-11-03 02:49:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-03 02:49:48,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:48,146 INFO L195 NwaCegarLoop]: trace histogram [23, 15, 15, 15, 15, 15, 15, 11, 11, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:49:48,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:49:48,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash -88777441, now seen corresponding path program 1 times [2022-11-03 02:49:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:48,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286304296] [2022-11-03 02:49:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1388 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1372 trivial. 0 not checked. [2022-11-03 02:49:48,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:48,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286304296] [2022-11-03 02:49:48,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286304296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:49:48,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:49:48,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:49:48,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618890767] [2022-11-03 02:49:48,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:49:48,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:49:48,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:48,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:49:48,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:49:48,801 INFO L87 Difference]: Start difference. First operand 17628 states and 25101 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:49:51,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:53,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:49:58,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:01,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:03,894 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 [] [2022-11-03 02:50:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:04,208 INFO L93 Difference]: Finished difference Result 29878 states and 42576 transitions. [2022-11-03 02:50:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:04,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 358 [2022-11-03 02:50:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:04,316 INFO L225 Difference]: With dead ends: 29878 [2022-11-03 02:50:04,316 INFO L226 Difference]: Without dead ends: 19926 [2022-11-03 02:50:04,361 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 [2022-11-03 02:50:04,362 INFO L413 NwaCegarLoop]: 4648 mSDtfsCounter, 2600 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:04,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 7212 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 875 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time] [2022-11-03 02:50:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-11-03 02:50:05,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 19873. [2022-11-03 02:50:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19873 states, 11725 states have (on average 1.272409381663113) internal successors, (14919), 12185 states have internal predecessors, (14919), 6607 states have call successors, (6607), 1584 states have call predecessors, (6607), 1540 states have return successors, (6776), 6388 states have call predecessors, (6776), 6607 states have call successors, (6776) [2022-11-03 02:50:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19873 states to 19873 states and 28302 transitions. [2022-11-03 02:50:06,073 INFO L78 Accepts]: Start accepts. Automaton has 19873 states and 28302 transitions. Word has length 358 [2022-11-03 02:50:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:06,076 INFO L495 AbstractCegarLoop]: Abstraction has 19873 states and 28302 transitions. [2022-11-03 02:50:06,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 02:50:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 19873 states and 28302 transitions. [2022-11-03 02:50:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-11-03 02:50:06,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:06,124 INFO L195 NwaCegarLoop]: trace histogram [23, 16, 16, 16, 16, 16, 16, 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, 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] [2022-11-03 02:50:06,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:50:06,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1516764372, now seen corresponding path program 1 times [2022-11-03 02:50:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:06,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521701403] [2022-11-03 02:50:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:06,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-03 02:50:08,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:08,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521701403] [2022-11-03 02:50:08,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521701403] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:50:08,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910938302] [2022-11-03 02:50:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:08,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:50:08,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:50:08,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:50:08,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:50:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:10,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 3745 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:50:10,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:50:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2022-11-03 02:50:10,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:50:10,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910938302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:10,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:50:10,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-03 02:50:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520059552] [2022-11-03 02:50:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:10,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:10,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:10,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:50:10,554 INFO L87 Difference]: Start difference. First operand 19873 states and 28302 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, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:50:15,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:17,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:18,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:22,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:26,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:28,573 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 [] [2022-11-03 02:50:29,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:29,284 INFO L93 Difference]: Finished difference Result 58382 states and 83209 transitions. [2022-11-03 02:50:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:29,285 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, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 377 [2022-11-03 02:50:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:29,498 INFO L225 Difference]: With dead ends: 58382 [2022-11-03 02:50:29,499 INFO L226 Difference]: Without dead ends: 38717 [2022-11-03 02:50:29,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:50:29,595 INFO L413 NwaCegarLoop]: 3771 mSDtfsCounter, 2727 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:29,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 6359 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 739 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-03 02:50:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38717 states. [2022-11-03 02:50:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38717 to 38712. [2022-11-03 02:50:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38712 states, 22866 states have (on average 1.2722819907285927) internal successors, (29092), 23744 states have internal predecessors, (29092), 12842 states have call successors, (12842), 3091 states have call predecessors, (12842), 3003 states have return successors, (13190), 12444 states have call predecessors, (13190), 12842 states have call successors, (13190) [2022-11-03 02:50:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38712 states to 38712 states and 55124 transitions. [2022-11-03 02:50:33,543 INFO L78 Accepts]: Start accepts. Automaton has 38712 states and 55124 transitions. Word has length 377 [2022-11-03 02:50:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:33,544 INFO L495 AbstractCegarLoop]: Abstraction has 38712 states and 55124 transitions. [2022-11-03 02:50:33,544 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, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:50:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 38712 states and 55124 transitions. [2022-11-03 02:50:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-03 02:50:33,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:33,615 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 10, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:33,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:50:33,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:50:33,840 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:33,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:33,840 INFO L85 PathProgramCache]: Analyzing trace with hash -541505304, now seen corresponding path program 1 times [2022-11-03 02:50:33,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:33,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039599755] [2022-11-03 02:50:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:33,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2022-11-03 02:50:34,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039599755] [2022-11-03 02:50:34,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039599755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:34,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:34,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:50:34,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818985064] [2022-11-03 02:50:34,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:34,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:50:34,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:50:34,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:50:34,569 INFO L87 Difference]: Start difference. First operand 38712 states and 55124 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-03 02:50:37,856 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 [] [2022-11-03 02:50:39,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:43,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:49,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:52,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:50:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:53,089 INFO L93 Difference]: Finished difference Result 77348 states and 110494 transitions. [2022-11-03 02:50:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:50:53,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 404 [2022-11-03 02:50:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:53,357 INFO L225 Difference]: With dead ends: 77348 [2022-11-03 02:50:53,358 INFO L226 Difference]: Without dead ends: 38844 [2022-11-03 02:50:53,775 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 [2022-11-03 02:50:53,776 INFO L413 NwaCegarLoop]: 2606 mSDtfsCounter, 19 mSDsluCounter, 8722 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10389 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:53,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10389 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1266 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2022-11-03 02:50:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38844 states. [2022-11-03 02:50:56,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38844 to 38800. [2022-11-03 02:50:56,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38800 states, 22932 states have (on average 1.2714983429269144) internal successors, (29158), 23810 states have internal predecessors, (29158), 12842 states have call successors, (12842), 3091 states have call predecessors, (12842), 3025 states have return successors, (13268), 12466 states have call predecessors, (13268), 12842 states have call successors, (13268) [2022-11-03 02:50:57,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38800 states to 38800 states and 55268 transitions. [2022-11-03 02:50:57,142 INFO L78 Accepts]: Start accepts. Automaton has 38800 states and 55268 transitions. Word has length 404 [2022-11-03 02:50:57,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:57,143 INFO L495 AbstractCegarLoop]: Abstraction has 38800 states and 55268 transitions. [2022-11-03 02:50:57,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-03 02:50:57,144 INFO L276 IsEmpty]: Start isEmpty. Operand 38800 states and 55268 transitions. [2022-11-03 02:50:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-03 02:50:57,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:57,195 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 11, 11, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:50:57,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:50:57,196 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:57,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1336533761, now seen corresponding path program 1 times [2022-11-03 02:50:57,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:57,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785963340] [2022-11-03 02:50:57,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:57,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:51:00,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-11-03 02:51:00,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:51:00,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785963340] [2022-11-03 02:51:00,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785963340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:51:00,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981460588] [2022-11-03 02:51:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:51:00,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:51:00,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:51:00,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:51:00,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:51:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:51:01,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 3801 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:51:01,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:51:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-11-03 02:51:34,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:51:34,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981460588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:51:34,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:51:34,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-03 02:51:34,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185299934] [2022-11-03 02:51:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:51:34,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:51:34,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:51:34,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:51:34,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:51:34,777 INFO L87 Difference]: Start difference. First operand 38800 states and 55268 transitions. Second operand has 6 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 1 states have call successors, (45) [2022-11-03 02:51:40,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:42,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:43,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:46,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:48,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:50,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:52,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:51:57,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:02,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:06,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:09,044 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 [] [2022-11-03 02:52:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:10,294 INFO L93 Difference]: Finished difference Result 56956 states and 81173 transitions. [2022-11-03 02:52:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:52:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 1 states have call successors, (45) Word has length 396 [2022-11-03 02:52:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:10,595 INFO L225 Difference]: With dead ends: 56956 [2022-11-03 02:52:10,595 INFO L226 Difference]: Without dead ends: 56954 [2022-11-03 02:52:10,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:52:10,635 INFO L413 NwaCegarLoop]: 3165 mSDtfsCounter, 1981 mSDsluCounter, 12242 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 14157 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:10,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 14157 Invalid, 2716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2709 Invalid, 6 Unknown, 0 Unchecked, 30.6s Time] [2022-11-03 02:52:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56954 states. [2022-11-03 02:52:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56954 to 56886. [2022-11-03 02:52:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56886 states, 33715 states have (on average 1.2717484799050867) internal successors, (42877), 35059 states have internal predecessors, (42877), 18681 states have call successors, (18681), 4643 states have call predecessors, (18681), 4489 states have return successors, (19498), 17961 states have call predecessors, (19498), 18681 states have call successors, (19498) [2022-11-03 02:52:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56886 states to 56886 states and 81056 transitions. [2022-11-03 02:52:16,270 INFO L78 Accepts]: Start accepts. Automaton has 56886 states and 81056 transitions. Word has length 396 [2022-11-03 02:52:16,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:16,271 INFO L495 AbstractCegarLoop]: Abstraction has 56886 states and 81056 transitions. [2022-11-03 02:52:16,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 1 states have call successors, (45) [2022-11-03 02:52:16,272 INFO L276 IsEmpty]: Start isEmpty. Operand 56886 states and 81056 transitions. [2022-11-03 02:52:16,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-03 02:52:16,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:16,310 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 10, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:16,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac7b0923-d4cb-463a-b66c-11e3a3d7f939/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:52:16,523 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:52:16,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:16,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1976405911, now seen corresponding path program 1 times [2022-11-03 02:52:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:16,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937865788] [2022-11-03 02:52:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2022-11-03 02:52:17,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:17,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937865788] [2022-11-03 02:52:17,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937865788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:17,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:17,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:17,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90696845] [2022-11-03 02:52:17,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:17,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:17,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:17,080 INFO L87 Difference]: Start difference. First operand 56886 states and 81056 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-03 02:52:22,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:24,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:31,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:52:33,619 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 [] [2022-11-03 02:52:34,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:34,994 INFO L93 Difference]: Finished difference Result 113870 states and 164834 transitions. [2022-11-03 02:52:34,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:34,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 419 [2022-11-03 02:52:34,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:35,279 INFO L225 Difference]: With dead ends: 113870 [2022-11-03 02:52:35,280 INFO L226 Difference]: Without dead ends: 57192 [2022-11-03 02:52:35,495 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 [2022-11-03 02:52:35,496 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 4 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:35,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5198 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 628 Invalid, 3 Unknown, 0 Unchecked, 11.5s Time] [2022-11-03 02:52:35,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57192 states. [2022-11-03 02:52:40,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57192 to 57124. [2022-11-03 02:52:40,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57124 states, 33885 states have (on average 1.2713885199940977) internal successors, (43081), 35229 states have internal predecessors, (43081), 18749 states have call successors, (18749), 4643 states have call predecessors, (18749), 4489 states have return successors, (19566), 18029 states have call predecessors, (19566), 18749 states have call successors, (19566) [2022-11-03 02:52:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57124 states to 57124 states and 81396 transitions. [2022-11-03 02:52:40,823 INFO L78 Accepts]: Start accepts. Automaton has 57124 states and 81396 transitions. Word has length 419 [2022-11-03 02:52:40,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:40,824 INFO L495 AbstractCegarLoop]: Abstraction has 57124 states and 81396 transitions. [2022-11-03 02:52:40,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-03 02:52:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 57124 states and 81396 transitions. [2022-11-03 02:52:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-03 02:52:41,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:41,171 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 14, 14, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:41,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:52:41,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:52:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash -142542598, now seen corresponding path program 1 times [2022-11-03 02:52:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:41,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503376155] [2022-11-03 02:52:41,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:41,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-03 02:52:50,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:50,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503376155] [2022-11-03 02:52:50,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503376155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:50,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:50,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 02:52:50,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842660191] [2022-11-03 02:52:50,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:50,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:52:50,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:50,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:52:50,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:52:50,439 INFO L87 Difference]: Start difference. First operand 57124 states and 81396 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-11-03 02:52:58,789 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 [] [2022-11-03 02:53:03,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:07,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:15,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:19,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:28,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:33,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:53:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:53:46,288 INFO L93 Difference]: Finished difference Result 152923 states and 219362 transitions. [2022-11-03 02:53:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:53:46,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 419 [2022-11-03 02:53:46,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:53:47,234 INFO L225 Difference]: With dead ends: 152923 [2022-11-03 02:53:47,234 INFO L226 Difference]: Without dead ends: 152921 [2022-11-03 02:53:47,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:53:47,298 INFO L413 NwaCegarLoop]: 5729 mSDtfsCounter, 16981 mSDsluCounter, 30399 mSDsCounter, 0 mSdLazyCounter, 7468 mSolverCounterSat, 9384 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17059 SdHoareTripleChecker+Valid, 33468 SdHoareTripleChecker+Invalid, 16857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9384 IncrementalHoareTripleChecker+Valid, 7468 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:53:47,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17059 Valid, 33468 Invalid, 16857 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9384 Valid, 7468 Invalid, 5 Unknown, 0 Unchecked, 42.3s Time] [2022-11-03 02:53:47,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152921 states.