./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta --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 b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- 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-dbf71c6-m [2022-10-17 17:37:01,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:37:01,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:37:01,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:37:01,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:37:01,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:37:01,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:37:01,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:37:01,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:37:01,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:37:01,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:37:01,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:37:01,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:37:01,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:37:01,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:37:01,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:37:01,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:37:01,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:37:01,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:37:01,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:37:01,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:37:01,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:37:01,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:37:01,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:37:01,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:37:01,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:37:01,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:37:01,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:37:01,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:37:01,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:37:01,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:37:01,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:37:01,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:37:01,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:37:01,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:37:01,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:37:01,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:37:01,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:37:01,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:37:01,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:37:01,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:37:01,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:37:01,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:37:01,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:37:01,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:37:01,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:37:01,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:37:01,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:37:01,395 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:37:01,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:37:01,395 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:37:01,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:37:01,396 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:37:01,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:37:01,397 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:37:01,397 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:37:01,397 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:37:01,398 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:37:01,398 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:37:01,398 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:37:01,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:37:01,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:37:01,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:37:01,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:37:01,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:37:01,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:37:01,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:37:01,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:37:01,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:37:01,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:37:01,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:37:01,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:01,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:37:01,402 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:37:01,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:37:01,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:37:01,403 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:37:01,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:37:01,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:37:01,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:37:01,404 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_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2022-10-17 17:37:01,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:37:01,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:37:01,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:37:01,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:37:01,735 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:37:01,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-10-17 17:37:01,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/data/49f3415f0/32fd8bf2a1894a72bacef3173b72e999/FLAGf111d7a8d [2022-10-17 17:37:02,788 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:37:02,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-10-17 17:37:02,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/data/49f3415f0/32fd8bf2a1894a72bacef3173b72e999/FLAGf111d7a8d [2022-10-17 17:37:03,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/data/49f3415f0/32fd8bf2a1894a72bacef3173b72e999 [2022-10-17 17:37:03,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:37:03,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:37:03,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:03,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:37:03,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:37:03,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:03" (1/1) ... [2022-10-17 17:37:03,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e038189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:03, skipping insertion in model container [2022-10-17 17:37:03,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:03" (1/1) ... [2022-10-17 17:37:03,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:37:03,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:06,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2022-10-17 17:37:06,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2022-10-17 17:37:06,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:06,622 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:37:07,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2022-10-17 17:37:07,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2022-10-17 17:37:07,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:07,270 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:37:07,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07 WrapperNode [2022-10-17 17:37:07,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:07,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:07,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:37:07,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:37:07,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,629 INFO L138 Inliner]: procedures = 421, calls = 1839, calls flagged for inlining = 205, calls inlined = 179, statements flattened = 4240 [2022-10-17 17:37:07,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:07,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:37:07,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:37:07,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:37:07,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,879 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:37:07,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:37:07,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:37:07,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:37:07,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (1/1) ... [2022-10-17 17:37:07,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:07,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:37:07,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:37:07,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bb3bd3-5b38-431c-abc4-058e777a671c/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:37:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure build_crc [2022-10-17 17:37:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure build_crc [2022-10-17 17:37:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_set_multicast_list [2022-10-17 17:37:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_set_multicast_list [2022-10-17 17:37:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:37:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:37:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-10-17 17:37:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-10-17 17:37:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:37:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:37:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irqsave [2022-10-17 17:37:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irqsave [2022-10-17 17:37:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-10-17 17:37:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-10-17 17:37:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:37:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:37:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure free_orinocodev [2022-10-17 17:37:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure free_orinocodev [2022-10-17 17:37:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 17:37:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 17:37:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 17:37:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 17:37:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 17:37:08,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 17:37:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_8051_cpucs [2022-10-17 17:37:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_8051_cpucs [2022-10-17 17:37:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:37:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:37:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:37:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_unlock [2022-10-17 17:37:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_unlock [2022-10-17 17:37:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_open [2022-10-17 17:37:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_open [2022-10-17 17:37:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 17:37:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 17:37:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-17 17:37:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-17 17:37:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irqrestore [2022-10-17 17:37:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irqrestore [2022-10-17 17:37:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:37:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_disconnect [2022-10-17 17:37:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_disconnect [2022-10-17 17:37:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 17:37:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 17:37:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:37:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 17:37:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 17:37:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:37:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-10-17 17:37:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-10-17 17:37:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:37:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:37:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_init [2022-10-17 17:37:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_init [2022-10-17 17:37:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 17:37:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 17:37:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 17:37:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 17:37:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 17:37:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 17:37:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_hard_reset [2022-10-17 17:37:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_hard_reset [2022-10-17 17:37:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 17:37:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 17:37:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:37:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-10-17 17:37:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-10-17 17:37:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:37:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 17:37:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 17:37:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:37:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 17:37:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 17:37:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 17:37:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 17:37:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 17:37:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-10-17 17:37:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-10-17 17:37:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_request_context_put [2022-10-17 17:37:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_request_context_put [2022-10-17 17:37:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-10-17 17:37:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-10-17 17:37:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 17:37:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 17:37:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_submit_in_urb [2022-10-17 17:37:08,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_submit_in_urb [2022-10-17 17:37:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-10-17 17:37:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-10-17 17:37:08,072 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 17:37:08,072 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 17:37:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irq [2022-10-17 17:37:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irq [2022-10-17 17:37:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:37:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:37:08,073 INFO L130 BoogieDeclarations]: Found specification of procedure ndev_priv [2022-10-17 17:37:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ndev_priv [2022-10-17 17:37:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-17 17:37:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-17 17:37:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:37:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:37:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:37:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:37:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 17:37:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 17:37:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irq [2022-10-17 17:37:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irq [2022-10-17 17:37:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:37:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:37:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:37:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-10-17 17:37:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-10-17 17:37:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:37:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-10-17 17:37:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-10-17 17:37:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121 [2022-10-17 17:37:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121 [2022-10-17 17:37:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:37:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_tx_timeout [2022-10-17 17:37:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_tx_timeout [2022-10-17 17:37:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_program_end [2022-10-17 17:37:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_program_end [2022-10-17 17:37:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 17:37:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 17:37:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 17:37:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 17:37:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 17:37:08,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 17:37:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2022-10-17 17:37:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2022-10-17 17:37:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_stop [2022-10-17 17:37:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_stop [2022-10-17 17:37:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_access_ltv [2022-10-17 17:37:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_access_ltv [2022-10-17 17:37:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 17:37:08,092 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 17:37:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_write_ltv [2022-10-17 17:37:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_write_ltv [2022-10-17 17:37:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_mod_timer [2022-10-17 17:37:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_mod_timer [2022-10-17 17:37:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 17:37:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 17:37:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 17:37:08,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 17:37:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:37:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:37:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2022-10-17 17:37:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2022-10-17 17:37:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:37:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:37:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122 [2022-10-17 17:37:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122 [2022-10-17 17:37:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2022-10-17 17:37:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2022-10-17 17:37:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_delete [2022-10-17 17:37:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_delete [2022-10-17 17:37:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:37:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_alloc_ctx [2022-10-17 17:37:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_alloc_ctx [2022-10-17 17:37:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:37:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:37:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 17:37:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 17:37:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_reply_inc [2022-10-17 17:37:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_reply_inc [2022-10-17 17:37:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2022-10-17 17:37:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2022-10-17 17:37:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_docmd_wait [2022-10-17 17:37:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_docmd_wait [2022-10-17 17:37:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 17:37:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 17:37:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-10-17 17:37:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-10-17 17:37:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:37:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:37:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:37:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_complete_all [2022-10-17 17:37:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_complete_all [2022-10-17 17:37:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 17:37:08,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 17:37:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-17 17:37:08,099 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-17 17:37:08,928 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:37:08,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:37:09,556 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:37:12,333 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 17:37:12,473 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:37:13,590 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:37:13,591 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:37:13,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:13 BoogieIcfgContainer [2022-10-17 17:37:13,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:37:13,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:37:13,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:37:13,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:37:13,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:37:03" (1/3) ... [2022-10-17 17:37:13,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77efb2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:13, skipping insertion in model container [2022-10-17 17:37:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:07" (2/3) ... [2022-10-17 17:37:13,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77efb2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:13, skipping insertion in model container [2022-10-17 17:37:13,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:13" (3/3) ... [2022-10-17 17:37:13,609 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-10-17 17:37:13,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:37:13,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:37:13,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:37:13,747 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;@2d189fb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:37:13,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:37:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 1087 states, 647 states have (on average 1.3415765069551777) internal successors, (868), 660 states have internal predecessors, (868), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) [2022-10-17 17:37:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-17 17:37:13,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:13,791 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] [2022-10-17 17:37:13,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash 727632045, now seen corresponding path program 1 times [2022-10-17 17:37:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:13,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883437419] [2022-10-17 17:37:13,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:13,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-10-17 17:37:14,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:14,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883437419] [2022-10-17 17:37:14,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883437419] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:14,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:14,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:14,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331603003] [2022-10-17 17:37:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:14,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:14,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:14,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:14,904 INFO L87 Difference]: Start difference. First operand has 1087 states, 647 states have (on average 1.3415765069551777) internal successors, (868), 660 states have internal predecessors, (868), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:37:16,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:16,934 INFO L93 Difference]: Finished difference Result 3021 states and 4455 transitions. [2022-10-17 17:37:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:37:16,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 179 [2022-10-17 17:37:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:16,985 INFO L225 Difference]: With dead ends: 3021 [2022-10-17 17:37:16,986 INFO L226 Difference]: Without dead ends: 1900 [2022-10-17 17:37:17,010 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 [2022-10-17 17:37:17,018 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 1252 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:17,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 2974 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-17 17:37:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-10-17 17:37:17,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1896. [2022-10-17 17:37:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1150 states have (on average 1.3269565217391304) internal successors, (1526), 1176 states have internal predecessors, (1526), 589 states have call successors, (589), 156 states have call predecessors, (589), 156 states have return successors, (589), 579 states have call predecessors, (589), 589 states have call successors, (589) [2022-10-17 17:37:17,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2704 transitions. [2022-10-17 17:37:17,309 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2704 transitions. Word has length 179 [2022-10-17 17:37:17,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:17,313 INFO L495 AbstractCegarLoop]: Abstraction has 1896 states and 2704 transitions. [2022-10-17 17:37:17,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:37:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2704 transitions. [2022-10-17 17:37:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-17 17:37:17,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:17,327 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] [2022-10-17 17:37:17,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:37:17,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:17,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1121625835, now seen corresponding path program 1 times [2022-10-17 17:37:17,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:17,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989348512] [2022-10-17 17:37:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:17,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-10-17 17:37:17,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:17,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989348512] [2022-10-17 17:37:17,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989348512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:17,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:17,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:17,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106286166] [2022-10-17 17:37:17,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:17,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:17,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:17,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:17,998 INFO L87 Difference]: Start difference. First operand 1896 states and 2704 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:37:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:19,812 INFO L93 Difference]: Finished difference Result 5065 states and 7211 transitions. [2022-10-17 17:37:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:37:19,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 186 [2022-10-17 17:37:19,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:19,845 INFO L225 Difference]: With dead ends: 5065 [2022-10-17 17:37:19,845 INFO L226 Difference]: Without dead ends: 3200 [2022-10-17 17:37:19,857 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 [2022-10-17 17:37:19,859 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 1075 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:19,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 2959 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-17 17:37:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-10-17 17:37:20,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3194. [2022-10-17 17:37:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 1947 states have (on average 1.3271700051361068) internal successors, (2584), 1997 states have internal predecessors, (2584), 971 states have call successors, (971), 275 states have call predecessors, (971), 275 states have return successors, (971), 947 states have call predecessors, (971), 971 states have call successors, (971) [2022-10-17 17:37:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 4526 transitions. [2022-10-17 17:37:20,127 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 4526 transitions. Word has length 186 [2022-10-17 17:37:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:20,128 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 4526 transitions. [2022-10-17 17:37:20,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-17 17:37:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 4526 transitions. [2022-10-17 17:37:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-17 17:37:20,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:20,135 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 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] [2022-10-17 17:37:20,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:37:20,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:20,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash -59333201, now seen corresponding path program 1 times [2022-10-17 17:37:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:20,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747450247] [2022-10-17 17:37:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:20,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-10-17 17:37:20,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:20,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747450247] [2022-10-17 17:37:20,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747450247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:20,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:20,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543550904] [2022-10-17 17:37:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:20,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:20,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:20,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:20,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:20,562 INFO L87 Difference]: Start difference. First operand 3194 states and 4526 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 17:37:22,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:22,370 INFO L93 Difference]: Finished difference Result 7702 states and 10868 transitions. [2022-10-17 17:37:22,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:37:22,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 196 [2022-10-17 17:37:22,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:22,416 INFO L225 Difference]: With dead ends: 7702 [2022-10-17 17:37:22,417 INFO L226 Difference]: Without dead ends: 4539 [2022-10-17 17:37:22,434 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 [2022-10-17 17:37:22,440 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 1168 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:22,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2754 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-17 17:37:22,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-10-17 17:37:22,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4537. [2022-10-17 17:37:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 2767 states have (on average 1.321647994217564) internal successors, (3657), 2840 states have internal predecessors, (3657), 1359 states have call successors, (1359), 410 states have call predecessors, (1359), 410 states have return successors, (1359), 1325 states have call predecessors, (1359), 1359 states have call successors, (1359) [2022-10-17 17:37:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6375 transitions. [2022-10-17 17:37:22,756 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6375 transitions. Word has length 196 [2022-10-17 17:37:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:22,757 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 6375 transitions. [2022-10-17 17:37:22,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 17:37:22,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6375 transitions. [2022-10-17 17:37:22,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-17 17:37:22,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:22,762 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 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] [2022-10-17 17:37:22,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 17:37:22,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:22,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1048366038, now seen corresponding path program 1 times [2022-10-17 17:37:22,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:22,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238343937] [2022-10-17 17:37:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-10-17 17:37:23,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:23,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238343937] [2022-10-17 17:37:23,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238343937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:23,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:23,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:23,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477800615] [2022-10-17 17:37:23,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:23,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:23,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:23,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:23,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:23,203 INFO L87 Difference]: Start difference. First operand 4537 states and 6375 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 17:37:25,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:25,268 INFO L93 Difference]: Finished difference Result 9531 states and 13376 transitions. [2022-10-17 17:37:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:37:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 204 [2022-10-17 17:37:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:25,317 INFO L225 Difference]: With dead ends: 9531 [2022-10-17 17:37:25,317 INFO L226 Difference]: Without dead ends: 5025 [2022-10-17 17:37:25,347 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 [2022-10-17 17:37:25,350 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 1070 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:25,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 3205 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-17 17:37:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2022-10-17 17:37:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 5021. [2022-10-17 17:37:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 3072 states have (on average 1.3216145833333333) internal successors, (4060), 3153 states have internal predecessors, (4060), 1489 states have call successors, (1489), 459 states have call predecessors, (1489), 459 states have return successors, (1489), 1449 states have call predecessors, (1489), 1489 states have call successors, (1489) [2022-10-17 17:37:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 7038 transitions. [2022-10-17 17:37:25,800 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 7038 transitions. Word has length 204 [2022-10-17 17:37:25,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:25,801 INFO L495 AbstractCegarLoop]: Abstraction has 5021 states and 7038 transitions. [2022-10-17 17:37:25,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-10-17 17:37:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 7038 transitions. [2022-10-17 17:37:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-17 17:37:25,809 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:25,809 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 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] [2022-10-17 17:37:25,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 17:37:25,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash -46776236, now seen corresponding path program 1 times [2022-10-17 17:37:25,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:25,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614686322] [2022-10-17 17:37:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2022-10-17 17:37:26,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:26,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614686322] [2022-10-17 17:37:26,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614686322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:26,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:26,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263706328] [2022-10-17 17:37:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:26,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:26,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:26,208 INFO L87 Difference]: Start difference. First operand 5021 states and 7038 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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) [2022-10-17 17:37:28,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:37:28,235 INFO L93 Difference]: Finished difference Result 12687 states and 17795 transitions. [2022-10-17 17:37:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:37:28,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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 239 [2022-10-17 17:37:28,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:37:28,311 INFO L225 Difference]: With dead ends: 12687 [2022-10-17 17:37:28,311 INFO L226 Difference]: Without dead ends: 7697 [2022-10-17 17:37:28,340 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 [2022-10-17 17:37:28,340 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1283 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-17 17:37:28,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 2809 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-17 17:37:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7697 states. [2022-10-17 17:37:28,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7697 to 7683. [2022-10-17 17:37:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 4716 states have (on average 1.3127650551314674) internal successors, (6191), 4846 states have internal predecessors, (6191), 2282 states have call successors, (2282), 684 states have call predecessors, (2282), 684 states have return successors, (2282), 2210 states have call predecessors, (2282), 2282 states have call successors, (2282) [2022-10-17 17:37:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10755 transitions. [2022-10-17 17:37:28,973 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10755 transitions. Word has length 239 [2022-10-17 17:37:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:37:28,978 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 10755 transitions. [2022-10-17 17:37:28,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (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) [2022-10-17 17:37:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10755 transitions. [2022-10-17 17:37:28,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-10-17 17:37:28,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:28,986 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 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] [2022-10-17 17:37:28,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 17:37:28,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:37:28,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:28,987 INFO L85 PathProgramCache]: Analyzing trace with hash -114559705, now seen corresponding path program 1 times [2022-10-17 17:37:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:37:28,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397039049] [2022-10-17 17:37:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:37:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2022-10-17 17:37:29,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:37:29,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397039049] [2022-10-17 17:37:29,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397039049] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:29,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:29,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:37:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376638488] [2022-10-17 17:37:29,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:29,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:29,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:37:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:29,343 INFO L87 Difference]: Start difference. First operand 7683 states and 10755 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)