./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/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_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-8393723 [2022-11-19 07:59:35,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:59:35,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:59:35,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:59:35,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:59:35,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:59:35,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:59:35,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:59:35,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:59:35,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:59:35,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:59:35,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:59:35,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:59:35,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:59:35,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:59:35,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:59:35,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:59:35,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:59:35,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:59:35,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:59:35,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:59:35,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:59:35,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:59:35,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:59:35,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:59:35,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:59:35,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:59:35,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:59:35,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:59:35,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:59:35,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:59:35,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:59:35,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:59:35,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:59:35,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:59:35,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:59:35,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:59:35,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:59:35,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:59:35,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:59:35,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:59:35,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:59:35,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:59:35,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:59:35,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:59:35,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:59:35,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:59:35,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:59:35,295 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:59:35,295 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:59:35,296 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:59:35,296 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:59:35,296 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:59:35,296 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:59:35,297 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:59:35,297 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:59:35,297 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:59:35,298 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:59:35,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:59:35,298 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:59:35,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:59:35,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:59:35,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:59:35,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:59:35,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:59:35,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:59:35,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:59:35,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:59:35,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:59:35,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:59:35,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:59:35,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:35,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:59:35,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:59:35,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:59:35,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:59:35,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:59:35,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:59:35,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:59:35,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:59:35,308 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_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2022-11-19 07:59:35,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:59:35,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:59:35,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:59:35,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:59:35,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:59:35,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-19 07:59:35,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/data/11db02bd8/848e413fedd646f2b458eee299acfa16/FLAG99646d878 [2022-11-19 07:59:36,740 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:59:36,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-19 07:59:36,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/data/11db02bd8/848e413fedd646f2b458eee299acfa16/FLAG99646d878 [2022-11-19 07:59:37,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/data/11db02bd8/848e413fedd646f2b458eee299acfa16 [2022-11-19 07:59:37,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:59:37,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:59:37,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:37,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:59:37,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:59:37,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:37" (1/1) ... [2022-11-19 07:59:37,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6fb76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:37, skipping insertion in model container [2022-11-19 07:59:37,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:37" (1/1) ... [2022-11-19 07:59:37,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:59:37,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:41,720 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-19 07:59:41,725 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-19 07:59:41,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:41,783 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:42,403 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2022-11-19 07:59:42,403 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2022-11-19 07:59:42,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:42,637 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:42,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42 WrapperNode [2022-11-19 07:59:42,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:42,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:42,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:42,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:42,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:42,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,138 INFO L138 Inliner]: procedures = 533, calls = 2779, calls flagged for inlining = 243, calls inlined = 223, statements flattened = 6870 [2022-11-19 07:59:43,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:43,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:43,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:43,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:43,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:43,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:43,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:43,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:43,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (1/1) ... [2022-11-19 07:59:43,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:43,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:43,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:43,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_handler_adjust [2022-11-19 07:59:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_handler_adjust [2022-11-19 07:59:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:59:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:59:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:59:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:59:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_core_destroy [2022-11-19 07:59:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_core_destroy [2022-11-19 07:59:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:59:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:59:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:59:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:59:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_watermark_intr_disable [2022-11-19 07:59:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_watermark_intr_disable [2022-11-19 07:59:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:59:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:59:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_recv_next [2022-11-19 07:59:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_recv_next [2022-11-19 07:59:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-19 07:59:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-19 07:59:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_completed_send_next [2022-11-19 07:59:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_completed_send_next [2022-11-19 07:59:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:59:43,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:59:43,610 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_ce_deinit [2022-11-19 07:59:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_ce_deinit [2022-11-19 07:59:43,611 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_start [2022-11-19 07:59:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_start [2022-11-19 07:59:43,611 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_resume [2022-11-19 07:59:43,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_resume [2022-11-19 07:59:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:59:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:59:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_read32 [2022-11-19 07:59:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_read32 [2022-11-19 07:59:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-19 07:59:43,612 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-19 07:59:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:59:43,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:59:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-19 07:59:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ath10k_pci_exit_13_2 [2022-11-19 07:59:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-19 07:59:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-19 07:59:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:59:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-19 07:59:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-19 07:59:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_mem [2022-11-19 07:59:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_mem [2022-11-19 07:59:43,617 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:59:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:59:43,617 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:59:43,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:59:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_base_address [2022-11-19 07:59:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_base_address [2022-11-19 07:59:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_write_access [2022-11-19 07:59:43,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_write_access [2022-11-19 07:59:43,618 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 07:59:43,619 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 07:59:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:59:43,619 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:59:43,620 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:59:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:59:43,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:59:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:59:43,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:59:43,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:59:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:59:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:59:43,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:59:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_84 [2022-11-19 07:59:43,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_84 [2022-11-19 07:59:43,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 07:59:43,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 07:59:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:59:43,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:59:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_86 [2022-11-19 07:59:43,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_86 [2022-11-19 07:59:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-11-19 07:59:43,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-11-19 07:59:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:43,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:59:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:59:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_wake [2022-11-19 07:59:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_wake [2022-11-19 07:59:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:59:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:59:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:59:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:59:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_copy_complete_intr_disable [2022-11-19 07:59:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_copy_complete_intr_disable [2022-11-19 07:59:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_compl [2022-11-19 07:59:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_compl [2022-11-19 07:59:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_process_ce [2022-11-19 07:59:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_process_ce [2022-11-19 07:59:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_read32 [2022-11-19 07:59:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_read32 [2022-11-19 07:59:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:59:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:59:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:59:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:59:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:59:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:59:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_wake [2022-11-19 07:59:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_wake [2022-11-19 07:59:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_cleanup_ce [2022-11-19 07:59:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_cleanup_ce [2022-11-19 07:59:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_disable_interrupts [2022-11-19 07:59:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_disable_interrupts [2022-11-19 07:59:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:59:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:59:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:59:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:59:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:59:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_sleep [2022-11-19 07:59:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_sleep [2022-11-19 07:59:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-19 07:59:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-19 07:59:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 07:59:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 07:59:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:59:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:59:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:59:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:59:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_request_early_irq [2022-11-19 07:59:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_request_early_irq [2022-11-19 07:59:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:59:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-19 07:59:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-19 07:59:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_reg_write32 [2022-11-19 07:59:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_reg_write32 [2022-11-19 07:59:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:59:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:59:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-19 07:59:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-19 07:59:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:59:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:59:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_get_free_queue_number [2022-11-19 07:59:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_get_free_queue_number [2022-11-19 07:59:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_stop [2022-11-19 07:59:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_stop [2022-11-19 07:59:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_recv_buf_enqueue [2022-11-19 07:59:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_recv_buf_enqueue [2022-11-19 07:59:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_priv [2022-11-19 07:59:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_priv [2022-11-19 07:59:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:59:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:59:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:59:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:59:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_deinit [2022-11-19 07:59:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_deinit [2022-11-19 07:59:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2022-11-19 07:59:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2022-11-19 07:59:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_rx_pipe_cleanup [2022-11-19 07:59:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_rx_pipe_cleanup [2022-11-19 07:59:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_revoke_recv_next [2022-11-19 07:59:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_revoke_recv_next [2022-11-19 07:59:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2022-11-19 07:59:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2022-11-19 07:59:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 07:59:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 07:59:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_stop_ce [2022-11-19 07:59:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_stop_ce [2022-11-19 07:59:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_device_reset [2022-11-19 07:59:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_device_reset [2022-11-19 07:59:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 07:59:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 07:59:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:59:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:59:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:59:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:59:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_post_rx_pipe [2022-11-19 07:59:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_post_rx_pipe [2022-11-19 07:59:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_irq [2022-11-19 07:59:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_irq [2022-11-19 07:59:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:59:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:59:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-11-19 07:59:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-11-19 07:59:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_down [2022-11-19 07:59:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_down [2022-11-19 07:59:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:59:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:59:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_per_engine_service [2022-11-19 07:59:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_per_engine_service [2022-11-19 07:59:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:59:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:59:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:59:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:59:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_send [2022-11-19 07:59:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_send [2022-11-19 07:59:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_suspend [2022-11-19 07:59:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_suspend [2022-11-19 07:59:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 07:59:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 07:59:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-19 07:59:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-19 07:59:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-19 07:59:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-19 07:59:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:59:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:59:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:59:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_src_ring_read_index_get [2022-11-19 07:59:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_src_ring_read_index_get [2022-11-19 07:59:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure ATH10K_SKB_CB [2022-11-19 07:59:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ATH10K_SKB_CB [2022-11-19 07:59:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_free_early_irq [2022-11-19 07:59:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_free_early_irq [2022-11-19 07:59:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:59:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:59:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:59:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_do_pci_sleep [2022-11-19 07:59:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_do_pci_sleep [2022-11-19 07:59:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_kill_tasklet [2022-11-19 07:59:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_kill_tasklet [2022-11-19 07:59:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_remove [2022-11-19 07:59:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_remove [2022-11-19 07:59:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:59:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:59:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:59:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-19 07:59:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_disable_and_clear_legacy_irq [2022-11-19 07:59:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:59:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:59:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:59:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:59:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_irq_pending [2022-11-19 07:59:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_irq_pending [2022-11-19 07:59:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:59:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:59:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:59:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:59:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 07:59:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 07:59:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:59:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:59:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-19 07:59:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-19 07:59:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 07:59:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 07:59:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-11-19 07:59:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-11-19 07:59:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_85 [2022-11-19 07:59:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_85 [2022-11-19 07:59:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_83 [2022-11-19 07:59:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_83 [2022-11-19 07:59:43,662 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_write32 [2022-11-19 07:59:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_write32 [2022-11-19 07:59:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-19 07:59:43,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_map_service_to_pipe [2022-11-19 07:59:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_block [2022-11-19 07:59:43,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_block [2022-11-19 07:59:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:59:43,663 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:59:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:59:43,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:59:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:59:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_6 [2022-11-19 07:59:43,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_6 [2022-11-19 07:59:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:59:43,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:59:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:59:43,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:59:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:59:43,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:59:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_dbg_dump [2022-11-19 07:59:43,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_dbg_dump [2022-11-19 07:59:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-19 07:59:43,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-19 07:59:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_hif_power_up [2022-11-19 07:59:43,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_hif_power_up [2022-11-19 07:59:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:59:43,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:59:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_deinit_irq [2022-11-19 07:59:43,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_deinit_irq [2022-11-19 07:59:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2022-11-19 07:59:43,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2022-11-19 07:59:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 07:59:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 07:59:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure host_interest_item_address [2022-11-19 07:59:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure host_interest_item_address [2022-11-19 07:59:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2022-11-19 07:59:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:59:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-19 07:59:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_cancel_send_next [2022-11-19 07:59:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_cancel_send_next [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:59:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:59:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_ce_engine_int_status_clear [2022-11-19 07:59:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_ce_engine_int_status_clear [2022-11-19 07:59:44,857 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:44,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:45,080 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:59:51,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:59:51,468 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:59:53,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:59:53,644 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 07:59:53,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:53 BoogieIcfgContainer [2022-11-19 07:59:53,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:59:53,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:59:53,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:59:53,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:59:53,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:37" (1/3) ... [2022-11-19 07:59:53,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc6c165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:53, skipping insertion in model container [2022-11-19 07:59:53,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:42" (2/3) ... [2022-11-19 07:59:53,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc6c165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:53, skipping insertion in model container [2022-11-19 07:59:53,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:53" (3/3) ... [2022-11-19 07:59:53,666 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2022-11-19 07:59:53,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:59:53,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:59:53,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:59:53,846 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;@41c93c35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:59:53,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:59:53,861 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) [2022-11-19 07:59:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-19 07:59:53,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:53,924 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] [2022-11-19 07:59:53,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash 503621434, now seen corresponding path program 1 times [2022-11-19 07:59:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:53,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666159635] [2022-11-19 07:59:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-19 07:59:55,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:55,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666159635] [2022-11-19 07:59:55,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666159635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:55,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:55,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:59:55,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028384004] [2022-11-19 07:59:55,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:55,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:59:55,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:55,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:59:55,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:55,206 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) [2022-11-19 07:59:56,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:00,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:03,021 INFO L93 Difference]: Finished difference Result 5980 states and 8785 transitions. [2022-11-19 08:00:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:03,025 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 [2022-11-19 08:00:03,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:03,085 INFO L225 Difference]: With dead ends: 5980 [2022-11-19 08:00:03,086 INFO L226 Difference]: Without dead ends: 3872 [2022-11-19 08:00:03,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:03,115 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 2708 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2708 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:03,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2708 Valid, 6106 Invalid, 721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-19 08:00:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2022-11-19 08:00:03,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3869. [2022-11-19 08:00:03,467 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, (1345), 1332 states have call predecessors, (1345), 1345 states have call successors, (1345) [2022-11-19 08:00:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 5578 transitions. [2022-11-19 08:00:03,514 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 5578 transitions. Word has length 186 [2022-11-19 08:00:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:03,518 INFO L495 AbstractCegarLoop]: Abstraction has 3869 states and 5578 transitions. [2022-11-19 08:00:03,518 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) [2022-11-19 08:00:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 5578 transitions. [2022-11-19 08:00:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 08:00:03,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:03,545 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] [2022-11-19 08:00:03,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:00:03,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2109120691, now seen corresponding path program 1 times [2022-11-19 08:00:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:03,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163781410] [2022-11-19 08:00:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-11-19 08:00:04,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163781410] [2022-11-19 08:00:04,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163781410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:04,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:04,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711624814] [2022-11-19 08:00:04,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:04,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:04,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:04,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:04,214 INFO L87 Difference]: Start difference. First operand 3869 states and 5578 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) [2022-11-19 08:00:06,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:11,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:11,309 INFO L93 Difference]: Finished difference Result 9498 states and 13685 transitions. [2022-11-19 08:00:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:11,310 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 [2022-11-19 08:00:11,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:11,373 INFO L225 Difference]: With dead ends: 9498 [2022-11-19 08:00:11,373 INFO L226 Difference]: Without dead ends: 5660 [2022-11-19 08:00:11,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:11,403 INFO L413 NwaCegarLoop]: 4878 mSDtfsCounter, 2539 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 7441 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:11,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 7441 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-19 08:00:11,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2022-11-19 08:00:11,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5656. [2022-11-19 08:00:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 3284 states have (on average 1.2804506699147382) internal successors, (4205), 3395 states have internal predecessors, (4205), 1965 states have call successors, (1965), 406 states have call predecessors, (1965), 406 states have return successors, (1965), 1944 states have call predecessors, (1965), 1965 states have call successors, (1965) [2022-11-19 08:00:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 8135 transitions. [2022-11-19 08:00:11,928 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 8135 transitions. Word has length 233 [2022-11-19 08:00:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:11,931 INFO L495 AbstractCegarLoop]: Abstraction has 5656 states and 8135 transitions. [2022-11-19 08:00:11,931 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) [2022-11-19 08:00:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 8135 transitions. [2022-11-19 08:00:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-19 08:00:11,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:11,943 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] [2022-11-19 08:00:11,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:00:11,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash 440033676, now seen corresponding path program 1 times [2022-11-19 08:00:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:11,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473756841] [2022-11-19 08:00:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:11,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2022-11-19 08:00:12,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:12,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473756841] [2022-11-19 08:00:12,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473756841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:12,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:12,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:12,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887670198] [2022-11-19 08:00:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:12,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:12,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:12,604 INFO L87 Difference]: Start difference. First operand 5656 states and 8135 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) [2022-11-19 08:00:14,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:16,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:20,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:22,773 INFO L93 Difference]: Finished difference Result 13419 states and 19281 transitions. [2022-11-19 08:00:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:22,774 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 [2022-11-19 08:00:22,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:22,831 INFO L225 Difference]: With dead ends: 13419 [2022-11-19 08:00:22,831 INFO L226 Difference]: Without dead ends: 7794 [2022-11-19 08:00:22,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:22,869 INFO L413 NwaCegarLoop]: 4534 mSDtfsCounter, 2429 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 7080 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:22,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 7080 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 08:00:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2022-11-19 08:00:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7786. [2022-11-19 08:00:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 4551 states have (on average 1.2764227642276422) internal successors, (5809), 4712 states have internal predecessors, (5809), 2667 states have call successors, (2667), 567 states have call predecessors, (2667), 567 states have return successors, (2667), 2632 states have call predecessors, (2667), 2667 states have call successors, (2667) [2022-11-19 08:00:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 11143 transitions. [2022-11-19 08:00:23,374 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 11143 transitions. Word has length 240 [2022-11-19 08:00:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:23,374 INFO L495 AbstractCegarLoop]: Abstraction has 7786 states and 11143 transitions. [2022-11-19 08:00:23,376 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) [2022-11-19 08:00:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 11143 transitions. [2022-11-19 08:00:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-19 08:00:23,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:23,387 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] [2022-11-19 08:00:23,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:00:23,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:23,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2060829626, now seen corresponding path program 1 times [2022-11-19 08:00:23,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:23,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423497734] [2022-11-19 08:00:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2022-11-19 08:00:23,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:23,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423497734] [2022-11-19 08:00:23,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423497734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:23,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:23,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:23,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389686991] [2022-11-19 08:00:23,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:23,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:23,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:23,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:23,829 INFO L87 Difference]: Start difference. First operand 7786 states and 11143 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) [2022-11-19 08:00:26,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:29,264 INFO L93 Difference]: Finished difference Result 15764 states and 22516 transitions. [2022-11-19 08:00:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:29,265 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 [2022-11-19 08:00:29,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:29,323 INFO L225 Difference]: With dead ends: 15764 [2022-11-19 08:00:29,324 INFO L226 Difference]: Without dead ends: 8009 [2022-11-19 08:00:29,361 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 [2022-11-19 08:00:29,362 INFO L413 NwaCegarLoop]: 2642 mSDtfsCounter, 262 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:29,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 5214 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 646 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 08:00:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2022-11-19 08:00:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 8009. [2022-11-19 08:00:29,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8009 states, 4698 states have (on average 1.2735206470838654) internal successors, (5983), 4861 states have internal predecessors, (5983), 2716 states have call successors, (2716), 594 states have call predecessors, (2716), 594 states have return successors, (2716), 2681 states have call predecessors, (2716), 2716 states have call successors, (2716) [2022-11-19 08:00:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8009 states to 8009 states and 11415 transitions. [2022-11-19 08:00:29,784 INFO L78 Accepts]: Start accepts. Automaton has 8009 states and 11415 transitions. Word has length 255 [2022-11-19 08:00:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:29,785 INFO L495 AbstractCegarLoop]: Abstraction has 8009 states and 11415 transitions. [2022-11-19 08:00:29,786 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) [2022-11-19 08:00:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8009 states and 11415 transitions. [2022-11-19 08:00:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-19 08:00:29,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:29,801 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] [2022-11-19 08:00:29,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:00:29,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash 628884921, now seen corresponding path program 1 times [2022-11-19 08:00:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:29,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544208805] [2022-11-19 08:00:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2022-11-19 08:00:30,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:30,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544208805] [2022-11-19 08:00:30,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544208805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:30,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:30,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388199922] [2022-11-19 08:00:30,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:30,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:30,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:30,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:30,354 INFO L87 Difference]: Start difference. First operand 8009 states and 11415 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) [2022-11-19 08:00:32,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:34,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:35,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:37,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:39,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:42,370 INFO L93 Difference]: Finished difference Result 17977 states and 25626 transitions. [2022-11-19 08:00:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:42,370 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 [2022-11-19 08:00:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:42,438 INFO L225 Difference]: With dead ends: 17977 [2022-11-19 08:00:42,438 INFO L226 Difference]: Without dead ends: 10176 [2022-11-19 08:00:42,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:42,474 INFO L413 NwaCegarLoop]: 4766 mSDtfsCounter, 2437 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 7301 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:42,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 7301 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-11-19 08:00:42,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2022-11-19 08:00:42,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 10168. [2022-11-19 08:00:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10168 states, 5977 states have (on average 1.2713735987953823) internal successors, (7599), 6190 states have internal predecessors, (7599), 3425 states have call successors, (3425), 765 states have call predecessors, (3425), 765 states have return successors, (3425), 3376 states have call predecessors, (3425), 3425 states have call successors, (3425) [2022-11-19 08:00:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10168 states to 10168 states and 14449 transitions. [2022-11-19 08:00:43,125 INFO L78 Accepts]: Start accepts. Automaton has 10168 states and 14449 transitions. Word has length 278 [2022-11-19 08:00:43,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:43,127 INFO L495 AbstractCegarLoop]: Abstraction has 10168 states and 14449 transitions. [2022-11-19 08:00:43,127 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) [2022-11-19 08:00:43,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10168 states and 14449 transitions. [2022-11-19 08:00:43,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-19 08:00:43,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:43,143 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] [2022-11-19 08:00:43,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:00:43,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:43,144 INFO L85 PathProgramCache]: Analyzing trace with hash 957724127, now seen corresponding path program 1 times [2022-11-19 08:00:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:43,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850410916] [2022-11-19 08:00:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-19 08:00:49,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:49,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850410916] [2022-11-19 08:00:49,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850410916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:49,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:49,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:00:49,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105052491] [2022-11-19 08:00:49,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:49,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:00:49,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:49,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:00:49,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:00:49,394 INFO L87 Difference]: Start difference. First operand 10168 states and 14449 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) [2022-11-19 08:00:53,928 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 [] [2022-11-19 08:00:59,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:05,544 INFO L93 Difference]: Finished difference Result 17670 states and 25125 transitions. [2022-11-19 08:01:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:01:05,545 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 [2022-11-19 08:01:05,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:05,667 INFO L225 Difference]: With dead ends: 17670 [2022-11-19 08:01:05,667 INFO L226 Difference]: Without dead ends: 17668 [2022-11-19 08:01:05,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:01:05,681 INFO L413 NwaCegarLoop]: 3135 mSDtfsCounter, 2038 mSDsluCounter, 10882 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 14017 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:05,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 14017 Invalid, 2825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2819 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2022-11-19 08:01:05,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17668 states. [2022-11-19 08:01:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17668 to 17636. [2022-11-19 08:01:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17636 states, 10413 states have (on average 1.271775665034092) internal successors, (13243), 10828 states have internal predecessors, (13243), 5851 states have call successors, (5851), 1413 states have call predecessors, (5851), 1371 states have return successors, (5975), 5647 states have call predecessors, (5975), 5851 states have call successors, (5975) [2022-11-19 08:01:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17636 states to 17636 states and 25069 transitions. [2022-11-19 08:01:07,859 INFO L78 Accepts]: Start accepts. Automaton has 17636 states and 25069 transitions. Word has length 297 [2022-11-19 08:01:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:07,860 INFO L495 AbstractCegarLoop]: Abstraction has 17636 states and 25069 transitions. [2022-11-19 08:01:07,860 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) [2022-11-19 08:01:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 17636 states and 25069 transitions. [2022-11-19 08:01:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-19 08:01:07,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:07,897 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] [2022-11-19 08:01:07,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:01:07,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1770502296, now seen corresponding path program 1 times [2022-11-19 08:01:07,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:07,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195014942] [2022-11-19 08:01:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:07,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1388 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1372 trivial. 0 not checked. [2022-11-19 08:01:08,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:08,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195014942] [2022-11-19 08:01:08,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195014942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:08,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:08,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:08,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586225292] [2022-11-19 08:01:08,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:08,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:08,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:08,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:08,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:08,553 INFO L87 Difference]: Start difference. First operand 17636 states and 25069 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) [2022-11-19 08:01:12,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:14,511 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 [] [2022-11-19 08:01:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:17,990 INFO L93 Difference]: Finished difference Result 29894 states and 42527 transitions. [2022-11-19 08:01:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:17,991 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 [2022-11-19 08:01:17,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:18,104 INFO L225 Difference]: With dead ends: 29894 [2022-11-19 08:01:18,104 INFO L226 Difference]: Without dead ends: 19934 [2022-11-19 08:01:18,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:18,146 INFO L413 NwaCegarLoop]: 4619 mSDtfsCounter, 2602 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2602 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:18,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2602 Valid, 7182 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-19 08:01:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19934 states. [2022-11-19 08:01:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19934 to 19881. [2022-11-19 08:01:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19881 states, 11729 states have (on average 1.2723164805183733) internal successors, (14923), 12189 states have internal predecessors, (14923), 6609 states have call successors, (6609), 1584 states have call predecessors, (6609), 1542 states have return successors, (6733), 6392 states have call predecessors, (6733), 6609 states have call successors, (6733) [2022-11-19 08:01:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19881 states to 19881 states and 28265 transitions. [2022-11-19 08:01:20,100 INFO L78 Accepts]: Start accepts. Automaton has 19881 states and 28265 transitions. Word has length 358 [2022-11-19 08:01:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:20,102 INFO L495 AbstractCegarLoop]: Abstraction has 19881 states and 28265 transitions. [2022-11-19 08:01:20,103 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) [2022-11-19 08:01:20,103 INFO L276 IsEmpty]: Start isEmpty. Operand 19881 states and 28265 transitions. [2022-11-19 08:01:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-11-19 08:01:20,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:20,135 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] [2022-11-19 08:01:20,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:01:20,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:20,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash 749647150, now seen corresponding path program 1 times [2022-11-19 08:01:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:20,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970069742] [2022-11-19 08:01:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2022-11-19 08:01:20,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:20,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970069742] [2022-11-19 08:01:20,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970069742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:20,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:20,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:01:20,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846440922] [2022-11-19 08:01:20,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:20,850 INFO L87 Difference]: Start difference. First operand 19881 states and 28265 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 08:01:23,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:25,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:27,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:32,116 INFO L93 Difference]: Finished difference Result 58464 states and 83175 transitions. [2022-11-19 08:01:32,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:01:32,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 377 [2022-11-19 08:01:32,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:32,364 INFO L225 Difference]: With dead ends: 58464 [2022-11-19 08:01:32,364 INFO L226 Difference]: Without dead ends: 38791 [2022-11-19 08:01:32,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:32,462 INFO L413 NwaCegarLoop]: 3668 mSDtfsCounter, 2947 mSDsluCounter, 5935 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 169 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 9603 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:32,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3034 Valid, 9603 Invalid, 1332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [169 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 08:01:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38791 states. [2022-11-19 08:01:35,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38791 to 38728. [2022-11-19 08:01:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38728 states, 22874 states have (on average 1.2721867622628311) internal successors, (29100), 23752 states have internal predecessors, (29100), 12846 states have call successors, (12846), 3091 states have call predecessors, (12846), 3007 states have return successors, (13094), 12452 states have call predecessors, (13094), 12846 states have call successors, (13094) [2022-11-19 08:01:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38728 states to 38728 states and 55040 transitions. [2022-11-19 08:01:35,940 INFO L78 Accepts]: Start accepts. Automaton has 38728 states and 55040 transitions. Word has length 377 [2022-11-19 08:01:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:35,941 INFO L495 AbstractCegarLoop]: Abstraction has 38728 states and 55040 transitions. [2022-11-19 08:01:35,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-19 08:01:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38728 states and 55040 transitions. [2022-11-19 08:01:35,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-19 08:01:35,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:35,992 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] [2022-11-19 08:01:35,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:01:35,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:35,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1453565815, now seen corresponding path program 1 times [2022-11-19 08:01:35,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:35,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868879267] [2022-11-19 08:01:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:35,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-11-19 08:01:38,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:38,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868879267] [2022-11-19 08:01:38,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868879267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:01:38,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687504736] [2022-11-19 08:01:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:38,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:38,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:38,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:01:38,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:01:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:40,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 3803 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 08:01:40,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2022-11-19 08:02:17,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:17,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687504736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:17,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:02:17,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-19 08:02:17,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115807081] [2022-11-19 08:02:17,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:17,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:02:17,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:02:17,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:02:17,196 INFO L87 Difference]: Start difference. First operand 38728 states and 55040 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) [2022-11-19 08:02:22,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:25,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:33,691 INFO L93 Difference]: Finished difference Result 56836 states and 80812 transitions. [2022-11-19 08:02:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:02:33,692 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 [2022-11-19 08:02:33,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:33,995 INFO L225 Difference]: With dead ends: 56836 [2022-11-19 08:02:33,996 INFO L226 Difference]: Without dead ends: 56834 [2022-11-19 08:02:34,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:02:34,027 INFO L413 NwaCegarLoop]: 3147 mSDtfsCounter, 1984 mSDsluCounter, 10940 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 14087 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:34,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 14087 Invalid, 2725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2724 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2022-11-19 08:02:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56834 states. [2022-11-19 08:02:39,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56834 to 56766. [2022-11-19 08:02:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56766 states, 33621 states have (on average 1.2725082537699652) internal successors, (42783), 34965 states have internal predecessors, (42783), 18685 states have call successors, (18685), 4643 states have call predecessors, (18685), 4459 states have return successors, (19227), 17935 states have call predecessors, (19227), 18685 states have call successors, (19227) [2022-11-19 08:02:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56766 states to 56766 states and 80695 transitions. [2022-11-19 08:02:39,669 INFO L78 Accepts]: Start accepts. Automaton has 56766 states and 80695 transitions. Word has length 396 [2022-11-19 08:02:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:39,670 INFO L495 AbstractCegarLoop]: Abstraction has 56766 states and 80695 transitions. [2022-11-19 08:02:39,670 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) [2022-11-19 08:02:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 56766 states and 80695 transitions. [2022-11-19 08:02:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-19 08:02:39,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:39,740 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] [2022-11-19 08:02:39,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:39,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a4ccc7-36ee-47a6-8ba7-8a0fb24dec40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:02:39,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:39,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:39,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1520959345, now seen corresponding path program 1 times [2022-11-19 08:02:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:39,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071497693] [2022-11-19 08:02:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:39,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2022-11-19 08:02:40,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071497693] [2022-11-19 08:02:40,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071497693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:40,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:40,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:02:40,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203922919] [2022-11-19 08:02:40,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:40,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:02:40,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:40,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:02:40,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:40,836 INFO L87 Difference]: Start difference. First operand 56766 states and 80695 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) [2022-11-19 08:02:44,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:46,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:49,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:56,193 INFO L93 Difference]: Finished difference Result 113528 states and 161910 transitions. [2022-11-19 08:02:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:02:56,194 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 [2022-11-19 08:02:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:56,592 INFO L225 Difference]: With dead ends: 113528 [2022-11-19 08:02:56,592 INFO L226 Difference]: Without dead ends: 56970 [2022-11-19 08:02:56,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:56,979 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 19 mSDsluCounter, 7782 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:56,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10387 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1275 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-11-19 08:02:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56970 states. [2022-11-19 08:03:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56970 to 56902. [2022-11-19 08:03:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56902 states, 33723 states have (on average 1.271684013877769) internal successors, (42885), 35067 states have internal predecessors, (42885), 18685 states have call successors, (18685), 4643 states have call predecessors, (18685), 4493 states have return successors, (19347), 17969 states have call predecessors, (19347), 18685 states have call successors, (19347) [2022-11-19 08:03:03,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56902 states to 56902 states and 80917 transitions. [2022-11-19 08:03:03,037 INFO L78 Accepts]: Start accepts. Automaton has 56902 states and 80917 transitions. Word has length 404 [2022-11-19 08:03:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:03,038 INFO L495 AbstractCegarLoop]: Abstraction has 56902 states and 80917 transitions. [2022-11-19 08:03:03,038 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) [2022-11-19 08:03:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 56902 states and 80917 transitions. [2022-11-19 08:03:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-19 08:03:03,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:03,106 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] [2022-11-19 08:03:03,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:03:03,106 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1098312384, now seen corresponding path program 1 times [2022-11-19 08:03:03,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:03:03,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6159148] [2022-11-19 08:03:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:03,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:03:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-19 08:03:12,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:03:12,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6159148] [2022-11-19 08:03:12,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6159148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:12,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:12,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:03:12,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127563946] [2022-11-19 08:03:12,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:12,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:03:12,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:03:12,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:03:12,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:03:12,273 INFO L87 Difference]: Start difference. First operand 56902 states and 80917 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)