./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-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P --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 211cf819b5d875dce280647ddf0a7b777f89a64546d83ea12f5b7a4f97622e40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:47:38,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:47:38,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:47:38,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:47:38,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:47:38,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:47:38,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:47:38,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:47:38,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:47:38,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:47:38,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:47:38,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:47:38,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:47:38,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:47:38,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:47:38,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:47:38,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:47:38,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:47:38,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:47:38,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:47:38,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:47:38,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:47:38,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:47:38,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:47:38,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:47:38,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:47:38,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:47:38,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:47:38,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:47:38,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:47:38,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:47:38,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:47:38,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:47:38,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:47:38,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:47:38,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:47:38,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:47:38,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:47:38,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:47:38,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:47:38,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:47:38,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:47:38,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:47:38,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:47:38,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:47:38,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:47:38,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:47:38,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:47:38,416 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:47:38,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:47:38,416 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:47:38,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:47:38,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:47:38,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:47:38,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:47:38,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:47:38,417 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:47:38,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:47:38,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:47:38,418 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:47:38,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:47:38,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:47:38,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:47:38,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:47:38,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:47:38,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:47:38,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:47:38,420 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:47:38,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:47:38,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:47:38,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:47:38,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:38,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:47:38,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:47:38,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:47:38,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:47:38,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:47:38,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:47:38,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:47:38,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:47:38,423 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 211cf819b5d875dce280647ddf0a7b777f89a64546d83ea12f5b7a4f97622e40 [2021-11-20 22:47:38,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:47:38,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:47:38,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:47:38,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:47:38,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:47:38,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-20 22:47:38,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/data/ec9b81f22/0f1432f2664642f09a0608e32526e675/FLAG93a446b96 [2021-11-20 22:47:40,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:47:40,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-20 22:47:40,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/data/ec9b81f22/0f1432f2664642f09a0608e32526e675/FLAG93a446b96 [2021-11-20 22:47:40,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/data/ec9b81f22/0f1432f2664642f09a0608e32526e675 [2021-11-20 22:47:40,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:47:40,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:47:40,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:40,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:47:40,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:47:40,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:40" (1/1) ... [2021-11-20 22:47:40,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30328ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:40, skipping insertion in model container [2021-11-20 22:47:40,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:40" (1/1) ... [2021-11-20 22:47:40,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:47:41,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:47:49,162 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_e6e7fae0-c341-4949-b052-2c13689b60a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790222,790235] [2021-11-20 22:47:49,164 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_e6e7fae0-c341-4949-b052-2c13689b60a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790367,790380] [2021-11-20 22:47:49,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:49,311 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:47:50,081 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_e6e7fae0-c341-4949-b052-2c13689b60a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790222,790235] [2021-11-20 22:47:50,081 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_e6e7fae0-c341-4949-b052-2c13689b60a2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i[790367,790380] [2021-11-20 22:47:50,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:50,563 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:47:50,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50 WrapperNode [2021-11-20 22:47:50,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:50,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:50,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:47:50,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:47:50,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:50,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,379 INFO L137 Inliner]: procedures = 735, calls = 11820, calls flagged for inlining = 331, calls inlined = 253, statements flattened = 13143 [2021-11-20 22:47:51,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:51,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:47:51,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:47:51,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:47:51,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:51,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:52,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:52,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:47:52,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:47:52,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:47:52,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:47:52,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (1/1) ... [2021-11-20 22:47:52,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:52,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:52,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:47:52,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:47:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 22:47:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 22:47:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:47:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:47:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2021-11-20 22:47:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2021-11-20 22:47:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2021-11-20 22:47:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2021-11-20 22:47:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2021-11-20 22:47:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2021-11-20 22:47:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:47:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:47:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 22:47:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 22:47:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-20 22:47:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-20 22:47:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2021-11-20 22:47:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2021-11-20 22:47:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2021-11-20 22:47:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2021-11-20 22:47:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:47:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:47:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 22:47:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 22:47:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2021-11-20 22:47:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2021-11-20 22:47:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2021-11-20 22:47:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2021-11-20 22:47:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 22:47:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 22:47:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:47:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:47:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:47:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:47:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 22:47:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 22:47:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 22:47:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 22:47:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2021-11-20 22:47:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2021-11-20 22:47:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:47:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:47:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2021-11-20 22:47:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2021-11-20 22:47:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2021-11-20 22:47:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2021-11-20 22:47:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2021-11-20 22:47:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2021-11-20 22:47:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 22:47:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 22:47:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:47:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2021-11-20 22:47:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2021-11-20 22:47:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-20 22:47:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-20 22:47:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2021-11-20 22:47:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2021-11-20 22:47:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 22:47:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 22:47:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2021-11-20 22:47:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2021-11-20 22:47:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2021-11-20 22:47:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2021-11-20 22:47:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 22:47:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 22:47:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_115 [2021-11-20 22:47:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_115 [2021-11-20 22:47:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2021-11-20 22:47:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2021-11-20 22:47:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2021-11-20 22:47:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2021-11-20 22:47:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:47:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:47:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:47:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 22:47:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 22:47:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:47:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2021-11-20 22:47:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2021-11-20 22:47:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:47:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:47:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2021-11-20 22:47:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2021-11-20 22:47:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:47:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:47:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:47:52,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 22:47:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 22:47:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2021-11-20 22:47:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2021-11-20 22:47:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2021-11-20 22:47:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2021-11-20 22:47:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:47:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:47:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 22:47:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 22:47:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 22:47:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 22:47:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:47:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:47:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:47:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:47:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2021-11-20 22:47:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2021-11-20 22:47:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 22:47:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 22:47:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 22:47:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 22:47:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2021-11-20 22:47:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2021-11-20 22:47:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:47:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:47:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2021-11-20 22:47:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2021-11-20 22:47:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2021-11-20 22:47:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2021-11-20 22:47:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2021-11-20 22:47:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2021-11-20 22:47:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:47:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 22:47:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 22:47:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 22:47:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 22:47:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-20 22:47:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-20 22:47:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:47:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2021-11-20 22:47:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2021-11-20 22:47:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:47:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:47:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2021-11-20 22:47:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2021-11-20 22:47:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:47:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:47:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:47:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-20 22:47:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-20 22:47:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:47:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2021-11-20 22:47:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2021-11-20 22:47:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:47:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:47:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:47:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:47:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 22:47:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 22:47:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2021-11-20 22:47:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2021-11-20 22:47:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:47:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:47:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2021-11-20 22:47:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2021-11-20 22:47:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 22:47:52,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 22:47:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 22:47:52,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 22:47:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 22:47:52,354 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 22:47:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2021-11-20 22:47:52,354 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2021-11-20 22:47:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2021-11-20 22:47:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2021-11-20 22:47:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-20 22:47:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-20 22:47:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2021-11-20 22:47:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2021-11-20 22:47:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-11-20 22:47:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-11-20 22:47:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:47:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:47:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-20 22:47:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-20 22:47:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2021-11-20 22:47:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2021-11-20 22:47:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2021-11-20 22:47:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2021-11-20 22:47:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-20 22:47:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-20 22:47:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:47:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:47:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:47:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:47:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2021-11-20 22:47:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2021-11-20 22:47:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-20 22:47:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-20 22:47:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2021-11-20 22:47:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2021-11-20 22:47:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2021-11-20 22:47:52,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2021-11-20 22:47:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2021-11-20 22:47:52,359 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2021-11-20 22:47:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2021-11-20 22:47:52,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2021-11-20 22:47:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 22:47:52,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 22:47:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2021-11-20 22:47:52,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2021-11-20 22:47:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2021-11-20 22:47:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2021-11-20 22:47:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2021-11-20 22:47:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_low_lock_of_ipw2100_priv [2021-11-20 22:47:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2021-11-20 22:47:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2021-11-20 22:47:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2021-11-20 22:47:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2021-11-20 22:47:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 22:47:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 22:47:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 22:47:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 22:47:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2021-11-20 22:47:52,361 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2021-11-20 22:47:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2021-11-20 22:47:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2021-11-20 22:47:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 22:47:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 22:47:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:47:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:47:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 22:47:52,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 22:47:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 22:47:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 22:47:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2021-11-20 22:47:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2021-11-20 22:47:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 22:47:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 22:47:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-20 22:47:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-20 22:47:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 22:47:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 22:47:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:47:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2021-11-20 22:47:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2021-11-20 22:47:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 22:47:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 22:47:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2021-11-20 22:47:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2021-11-20 22:47:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:47:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2021-11-20 22:47:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2021-11-20 22:47:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2021-11-20 22:47:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2021-11-20 22:47:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2021-11-20 22:47:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2021-11-20 22:47:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2021-11-20 22:47:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2021-11-20 22:47:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2021-11-20 22:47:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2021-11-20 22:47:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2021-11-20 22:47:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2021-11-20 22:47:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-20 22:47:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-20 22:47:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:47:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2021-11-20 22:47:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2021-11-20 22:47:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-20 22:47:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-20 22:47:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2021-11-20 22:47:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2021-11-20 22:47:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2021-11-20 22:47:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2021-11-20 22:47:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 22:47:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 22:47:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:47:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:47:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2021-11-20 22:47:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2021-11-20 22:47:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:47:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:47:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 22:47:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 22:47:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 22:47:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 22:47:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2021-11-20 22:47:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2021-11-20 22:47:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2021-11-20 22:47:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2021-11-20 22:47:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2021-11-20 22:47:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2021-11-20 22:47:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-20 22:47:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-20 22:47:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2021-11-20 22:47:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2021-11-20 22:47:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 22:47:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 22:47:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 22:47:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 22:47:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-20 22:47:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-20 22:47:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2021-11-20 22:47:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2021-11-20 22:47:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2021-11-20 22:47:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2021-11-20 22:47:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-20 22:47:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2021-11-20 22:47:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:47:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:47:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:47:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2021-11-20 22:47:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2021-11-20 22:47:52,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:47:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:47:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2021-11-20 22:47:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2021-11-20 22:47:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2021-11-20 22:47:52,406 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2021-11-20 22:47:52,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:47:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-20 22:47:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2021-11-20 22:47:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2021-11-20 22:47:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 22:47:52,407 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 22:47:52,407 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2021-11-20 22:47:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2021-11-20 22:47:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-20 22:47:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-20 22:47:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-20 22:47:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-20 22:47:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2021-11-20 22:47:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2021-11-20 22:47:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:47:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:47:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 22:47:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 22:47:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-20 22:47:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-20 22:47:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 22:47:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 22:47:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 22:47:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 22:47:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2021-11-20 22:47:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2021-11-20 22:47:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 22:47:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 22:47:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2021-11-20 22:47:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2021-11-20 22:47:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-20 22:47:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2021-11-20 22:47:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_low_lock_of_ipw2100_priv [2021-11-20 22:47:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2021-11-20 22:47:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2021-11-20 22:47:52,412 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2021-11-20 22:47:52,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2021-11-20 22:47:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:47:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2021-11-20 22:47:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2021-11-20 22:47:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2021-11-20 22:47:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2021-11-20 22:47:52,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 22:47:52,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 22:47:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 22:47:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 22:47:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2021-11-20 22:47:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2021-11-20 22:47:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2021-11-20 22:47:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2021-11-20 22:47:52,415 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-20 22:47:52,415 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-20 22:47:53,826 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:53,835 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:48:07,643 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:50:16,772 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 22:50:16,894 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:50:21,963 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:50:21,963 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 22:50:21,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:21 BoogieIcfgContainer [2021-11-20 22:50:21,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:50:21,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:50:21,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:50:21,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:50:21,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:40" (1/3) ... [2021-11-20 22:50:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ad0be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:21, skipping insertion in model container [2021-11-20 22:50:21,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:50" (2/3) ... [2021-11-20 22:50:21,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ad0be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:21, skipping insertion in model container [2021-11-20 22:50:21,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:21" (3/3) ... [2021-11-20 22:50:21,988 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2021-11-20 22:50:21,995 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:50:21,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:50:22,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:50:22,086 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:50:22,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:50:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 2842 states, 1768 states have (on average 1.33710407239819) internal successors, (2364), 1783 states have internal predecessors, (2364), 904 states have call successors, (904), 170 states have call predecessors, (904), 169 states have return successors, (898), 896 states have call predecessors, (898), 898 states have call successors, (898) [2021-11-20 22:50:22,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-20 22:50:22,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:22,241 INFO L514 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:22,242 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:22,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash -877242207, now seen corresponding path program 1 times [2021-11-20 22:50:22,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:22,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654200139] [2021-11-20 22:50:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:22,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-20 22:50:23,884 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:23,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654200139] [2021-11-20 22:50:23,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654200139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:23,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:23,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:23,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616991568] [2021-11-20 22:50:23,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:23,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:23,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:23,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:23,942 INFO L87 Difference]: Start difference. First operand has 2842 states, 1768 states have (on average 1.33710407239819) internal successors, (2364), 1783 states have internal predecessors, (2364), 904 states have call successors, (904), 170 states have call predecessors, (904), 169 states have return successors, (898), 896 states have call predecessors, (898), 898 states have call successors, (898) 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, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 22:50:27,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:32,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:35,385 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:37,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:45,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:49,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:51,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:53,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:55,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:58,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:00,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:00,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:00,901 INFO L93 Difference]: Finished difference Result 7307 states and 10735 transitions. [2021-11-20 22:51:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:00,906 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, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 317 [2021-11-20 22:51:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:00,982 INFO L225 Difference]: With dead ends: 7307 [2021-11-20 22:51:00,982 INFO L226 Difference]: Without dead ends: 4435 [2021-11-20 22:51:01,013 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:51:01,021 INFO L933 BasicCegarLoop]: 4746 mSDtfsCounter, 2409 mSDsluCounter, 4092 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 18 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 8355 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:01,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2412 Valid, 8355 Invalid, 1155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1126 Invalid, 11 Unknown, 0 Unchecked, 36.5s Time] [2021-11-20 22:51:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2021-11-20 22:51:01,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4433. [2021-11-20 22:51:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 2812 states have (on average 1.335348506401138) internal successors, (3755), 2830 states have internal predecessors, (3755), 1352 states have call successors, (1352), 268 states have call predecessors, (1352), 268 states have return successors, (1353), 1349 states have call predecessors, (1353), 1352 states have call successors, (1353) [2021-11-20 22:51:01,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6460 transitions. [2021-11-20 22:51:01,579 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6460 transitions. Word has length 317 [2021-11-20 22:51:01,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:01,584 INFO L470 AbstractCegarLoop]: Abstraction has 4433 states and 6460 transitions. [2021-11-20 22:51:01,584 INFO L471 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, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 22:51:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6460 transitions. [2021-11-20 22:51:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-20 22:51:01,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:01,626 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 7, 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] [2021-11-20 22:51:01,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:51:01,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:01,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:01,628 INFO L85 PathProgramCache]: Analyzing trace with hash -821149438, now seen corresponding path program 1 times [2021-11-20 22:51:01,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:01,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327148009] [2021-11-20 22:51:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:01,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:02,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2021-11-20 22:51:02,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:02,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327148009] [2021-11-20 22:51:02,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327148009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:02,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:02,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:51:02,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621577740] [2021-11-20 22:51:02,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:02,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:02,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:02,640 INFO L87 Difference]: Start difference. First operand 4433 states and 6460 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-20 22:51:06,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:09,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:11,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:13,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:18,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:21,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:24,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:28,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:32,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:35,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:37,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:40,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:42,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:44,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:45,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:45,215 INFO L93 Difference]: Finished difference Result 10465 states and 15250 transitions. [2021-11-20 22:51:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:45,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 370 [2021-11-20 22:51:45,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:45,273 INFO L225 Difference]: With dead ends: 10465 [2021-11-20 22:51:45,273 INFO L226 Difference]: Without dead ends: 6065 [2021-11-20 22:51:45,302 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:51:45,303 INFO L933 BasicCegarLoop]: 5602 mSDtfsCounter, 2343 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 15 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:45,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2344 Valid, 9147 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1364 Invalid, 12 Unknown, 0 Unchecked, 42.3s Time] [2021-11-20 22:51:45,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-11-20 22:51:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 6064. [2021-11-20 22:51:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 3864 states have (on average 1.3361801242236024) internal successors, (5163), 3886 states have internal predecessors, (5163), 1829 states have call successors, (1829), 370 states have call predecessors, (1829), 370 states have return successors, (1831), 1825 states have call predecessors, (1831), 1829 states have call successors, (1831) [2021-11-20 22:51:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 8823 transitions. [2021-11-20 22:51:45,646 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 8823 transitions. Word has length 370 [2021-11-20 22:51:45,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:45,649 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 8823 transitions. [2021-11-20 22:51:45,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-20 22:51:45,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 8823 transitions. [2021-11-20 22:51:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-20 22:51:45,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:45,685 INFO L514 BasicCegarLoop]: trace histogram [20, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 22:51:45,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:51:45,686 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:51:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1700331305, now seen corresponding path program 1 times [2021-11-20 22:51:45,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:45,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057757622] [2021-11-20 22:51:45,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:45,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2021-11-20 22:51:46,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:46,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057757622] [2021-11-20 22:51:46,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057757622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:46,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:46,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:51:46,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744743137] [2021-11-20 22:51:46,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:46,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:46,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:46,777 INFO L87 Difference]: Start difference. First operand 6064 states and 8823 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (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) [2021-11-20 22:51:51,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:53,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:55,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:58,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:00,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:02,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:03,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:08,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:12,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:14,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:17,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:19,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:22,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:24,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:24,894 INFO L93 Difference]: Finished difference Result 17673 states and 25683 transitions. [2021-11-20 22:52:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:52:24,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (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 380 [2021-11-20 22:52:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:24,982 INFO L225 Difference]: With dead ends: 17673 [2021-11-20 22:52:24,982 INFO L226 Difference]: Without dead ends: 11642 [2021-11-20 22:52:25,018 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:52:25,019 INFO L933 BasicCegarLoop]: 5625 mSDtfsCounter, 3407 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 5 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 9204 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:25,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3412 Valid, 9204 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1210 Invalid, 10 Unknown, 0 Unchecked, 37.7s Time] [2021-11-20 22:52:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11642 states. [2021-11-20 22:52:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11642 to 11631. [2021-11-20 22:52:25,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 7397 states have (on average 1.3332432067054212) internal successors, (9862), 7448 states have internal predecessors, (9862), 3509 states have call successors, (3509), 724 states have call predecessors, (3509), 724 states have return successors, (3516), 3494 states have call predecessors, (3516), 3509 states have call successors, (3516) [2021-11-20 22:52:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 16887 transitions. [2021-11-20 22:52:25,626 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 16887 transitions. Word has length 380 [2021-11-20 22:52:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:52:25,627 INFO L470 AbstractCegarLoop]: Abstraction has 11631 states and 16887 transitions. [2021-11-20 22:52:25,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (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) [2021-11-20 22:52:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 16887 transitions. [2021-11-20 22:52:25,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-20 22:52:25,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:52:25,687 INFO L514 BasicCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:52:25,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:52:25,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:52:25,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:52:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash -431244514, now seen corresponding path program 1 times [2021-11-20 22:52:25,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:52:25,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976513126] [2021-11-20 22:52:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:52:25,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:52:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:52:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-20 22:52:26,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:52:26,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976513126] [2021-11-20 22:52:26,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976513126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:52:26,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:52:26,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:52:26,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423528947] [2021-11-20 22:52:26,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:52:26,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:52:26,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:52:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:52:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:52:26,402 INFO L87 Difference]: Start difference. First operand 11631 states and 16887 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 22:52:31,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:36,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:37,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:39,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:43,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:47,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:49,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:52,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:54,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:57,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:59,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:52:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:52:59,793 INFO L93 Difference]: Finished difference Result 24831 states and 36013 transitions. [2021-11-20 22:52:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:52:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 401 [2021-11-20 22:52:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:52:59,879 INFO L225 Difference]: With dead ends: 24831 [2021-11-20 22:52:59,880 INFO L226 Difference]: Without dead ends: 13233 [2021-11-20 22:52:59,927 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:52:59,928 INFO L933 BasicCegarLoop]: 4252 mSDtfsCounter, 2268 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 10 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:52:59,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2269 Valid, 7795 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1060 Invalid, 9 Unknown, 0 Unchecked, 33.0s Time] [2021-11-20 22:52:59,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13233 states. [2021-11-20 22:53:00,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13233 to 13233. [2021-11-20 22:53:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13233 states, 8432 states have (on average 1.331949715370019) internal successors, (11231), 8486 states have internal predecessors, (11231), 3963 states have call successors, (3963), 837 states have call predecessors, (3963), 837 states have return successors, (3971), 3948 states have call predecessors, (3971), 3963 states have call successors, (3971) [2021-11-20 22:53:00,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13233 states to 13233 states and 19165 transitions. [2021-11-20 22:53:00,716 INFO L78 Accepts]: Start accepts. Automaton has 13233 states and 19165 transitions. Word has length 401 [2021-11-20 22:53:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:53:00,718 INFO L470 AbstractCegarLoop]: Abstraction has 13233 states and 19165 transitions. [2021-11-20 22:53:00,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-20 22:53:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 13233 states and 19165 transitions. [2021-11-20 22:53:00,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-11-20 22:53:00,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:53:00,784 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 22:53:00,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:53:00,784 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:53:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:53:00,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1722959573, now seen corresponding path program 1 times [2021-11-20 22:53:00,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:53:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005089407] [2021-11-20 22:53:00,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:00,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:53:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2021-11-20 22:53:01,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:53:01,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005089407] [2021-11-20 22:53:01,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005089407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:53:01,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:53:01,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:53:01,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100319321] [2021-11-20 22:53:01,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:53:01,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:53:01,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:53:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:53:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:53:01,928 INFO L87 Difference]: Start difference. First operand 13233 states and 19165 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 22:53:08,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:11,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:53:14,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:18,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:21,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:23,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:24,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:29,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:35,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:37,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:40,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:43,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:45,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:48,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:53:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:53:48,844 INFO L93 Difference]: Finished difference Result 27136 states and 39685 transitions. [2021-11-20 22:53:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:53:48,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) Word has length 432 [2021-11-20 22:53:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:53:48,917 INFO L225 Difference]: With dead ends: 27136 [2021-11-20 22:53:48,917 INFO L226 Difference]: Without dead ends: 15500 [2021-11-20 22:53:48,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 22:53:48,954 INFO L933 BasicCegarLoop]: 4269 mSDtfsCounter, 559 mSDsluCounter, 13980 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 16532 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:53:48,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 16532 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2343 Invalid, 9 Unknown, 0 Unchecked, 46.4s Time] [2021-11-20 22:53:48,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15500 states. [2021-11-20 22:53:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15500 to 13241. [2021-11-20 22:53:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13241 states, 8438 states have (on average 1.331713676226594) internal successors, (11237), 8492 states have internal predecessors, (11237), 3963 states have call successors, (3963), 837 states have call predecessors, (3963), 839 states have return successors, (3975), 3950 states have call predecessors, (3975), 3963 states have call successors, (3975) [2021-11-20 22:53:49,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13241 states to 13241 states and 19175 transitions. [2021-11-20 22:53:49,797 INFO L78 Accepts]: Start accepts. Automaton has 13241 states and 19175 transitions. Word has length 432 [2021-11-20 22:53:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:53:49,799 INFO L470 AbstractCegarLoop]: Abstraction has 13241 states and 19175 transitions. [2021-11-20 22:53:49,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 22:53:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 13241 states and 19175 transitions. [2021-11-20 22:53:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-20 22:53:49,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:53:49,844 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 22:53:49,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:53:49,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:53:49,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:53:49,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1345891973, now seen corresponding path program 1 times [2021-11-20 22:53:49,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:53:49,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409931076] [2021-11-20 22:53:49,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:49,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:53:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1649 trivial. 0 not checked. [2021-11-20 22:53:51,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:53:51,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409931076] [2021-11-20 22:53:51,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409931076] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:53:51,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163173966] [2021-11-20 22:53:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:53:51,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:53:51,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:53:51,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:53:51,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:53:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:53:55,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 15168 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 22:53:55,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:55:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2021-11-20 22:55:16,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:55:16,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163173966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:55:16,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:55:16,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2021-11-20 22:55:16,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453486852] [2021-11-20 22:55:16,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:55:16,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 22:55:16,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:55:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 22:55:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:55:16,215 INFO L87 Difference]: Start difference. First operand 13241 states and 19175 transitions. Second operand has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) [2021-11-20 22:55:29,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:55:33,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:35,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:41,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:44,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:45,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:53,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:55,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:55:57,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:04,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:06,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:09,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:12,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:14,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:17,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:56:18,703 INFO L93 Difference]: Finished difference Result 19424 states and 27945 transitions. [2021-11-20 22:56:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:56:18,704 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) Word has length 437 [2021-11-20 22:56:18,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:56:18,826 INFO L225 Difference]: With dead ends: 19424 [2021-11-20 22:56:18,827 INFO L226 Difference]: Without dead ends: 19422 [2021-11-20 22:56:18,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-20 22:56:18,842 INFO L933 BasicCegarLoop]: 4264 mSDtfsCounter, 1908 mSDsluCounter, 14906 mSDsCounter, 0 mSdLazyCounter, 3413 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 17262 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3413 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:56:18,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1909 Valid, 17262 Invalid, 3425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3413 Invalid, 11 Unknown, 0 Unchecked, 61.4s Time] [2021-11-20 22:56:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19422 states. [2021-11-20 22:56:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 19410. [2021-11-20 22:56:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19410 states, 12408 states have (on average 1.3341392649903288) internal successors, (16554), 12545 states have internal predecessors, (16554), 5668 states have call successors, (5668), 1364 states have call predecessors, (5668), 1333 states have return successors, (5704), 5570 states have call predecessors, (5704), 5668 states have call successors, (5704) [2021-11-20 22:56:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19410 states to 19410 states and 27926 transitions. [2021-11-20 22:56:20,056 INFO L78 Accepts]: Start accepts. Automaton has 19410 states and 27926 transitions. Word has length 437 [2021-11-20 22:56:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:56:20,058 INFO L470 AbstractCegarLoop]: Abstraction has 19410 states and 27926 transitions. [2021-11-20 22:56:20,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (55), 1 states have call predecessors, (55), 2 states have return successors, (53), 2 states have call predecessors, (53), 1 states have call successors, (53) [2021-11-20 22:56:20,059 INFO L276 IsEmpty]: Start isEmpty. Operand 19410 states and 27926 transitions. [2021-11-20 22:56:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-11-20 22:56:20,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:56:20,120 INFO L514 BasicCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:56:20,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:56:20,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e7fae0-c341-4949-b052-2c13689b60a2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 22:56:20,342 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:56:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:56:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1395080299, now seen corresponding path program 1 times [2021-11-20 22:56:20,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:56:20,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012125189] [2021-11-20 22:56:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:56:20,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:56:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:56:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2021-11-20 22:56:21,273 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:56:21,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012125189] [2021-11-20 22:56:21,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012125189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:56:21,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:56:21,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:56:21,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397709456] [2021-11-20 22:56:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:56:21,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:56:21,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:56:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:56:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:56:21,276 INFO L87 Difference]: Start difference. First operand 19410 states and 27926 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-20 22:56:27,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:30,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:33,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:56:35,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:38,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:41,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:42,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:46,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:50,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:52,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:55,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:56:58,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:00,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:02,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:57:03,384 INFO L93 Difference]: Finished difference Result 44850 states and 64564 transitions. [2021-11-20 22:57:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:57:03,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 450 [2021-11-20 22:57:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:57:03,544 INFO L225 Difference]: With dead ends: 44850 [2021-11-20 22:57:03,544 INFO L226 Difference]: Without dead ends: 27628 [2021-11-20 22:57:03,605 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:57:03,606 INFO L933 BasicCegarLoop]: 6524 mSDtfsCounter, 3361 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 10101 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:57:03,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3367 Valid, 10101 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1435 Invalid, 12 Unknown, 0 Unchecked, 41.0s Time] [2021-11-20 22:57:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27628 states. [2021-11-20 22:57:05,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27628 to 27602. [2021-11-20 22:57:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27602 states, 17615 states have (on average 1.3339767243826284) internal successors, (23498), 17829 states have internal predecessors, (23498), 8079 states have call successors, (8079), 1952 states have call predecessors, (8079), 1907 states have return successors, (8138), 7922 states have call predecessors, (8138), 8079 states have call successors, (8138) [2021-11-20 22:57:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27602 states to 27602 states and 39715 transitions. [2021-11-20 22:57:05,481 INFO L78 Accepts]: Start accepts. Automaton has 27602 states and 39715 transitions. Word has length 450 [2021-11-20 22:57:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:57:05,482 INFO L470 AbstractCegarLoop]: Abstraction has 27602 states and 39715 transitions. [2021-11-20 22:57:05,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-20 22:57:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 27602 states and 39715 transitions. [2021-11-20 22:57:05,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-11-20 22:57:05,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:57:05,575 INFO L514 BasicCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:57:05,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 22:57:05,576 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:57:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:57:05,576 INFO L85 PathProgramCache]: Analyzing trace with hash 758800414, now seen corresponding path program 1 times [2021-11-20 22:57:05,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:57:05,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863409323] [2021-11-20 22:57:05,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:57:05,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:57:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:57:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2021-11-20 22:57:06,347 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:57:06,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863409323] [2021-11-20 22:57:06,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863409323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:57:06,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:57:06,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:57:06,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678027448] [2021-11-20 22:57:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:57:06,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:57:06,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:57:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:57:06,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:57:06,349 INFO L87 Difference]: Start difference. First operand 27602 states and 39715 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-20 22:57:11,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:15,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:18,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:19,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:22,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:26,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:30,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:32,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:34,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:37,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:40,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:42,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:57:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:57:43,250 INFO L93 Difference]: Finished difference Result 79592 states and 114533 transitions. [2021-11-20 22:57:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:57:43,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 487 [2021-11-20 22:57:43,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:57:43,508 INFO L225 Difference]: With dead ends: 79592 [2021-11-20 22:57:43,508 INFO L226 Difference]: Without dead ends: 52023 [2021-11-20 22:57:43,593 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:57:43,593 INFO L933 BasicCegarLoop]: 4333 mSDtfsCounter, 3356 mSDsluCounter, 4043 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 7885 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:57:43,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3359 Valid, 7885 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1005 Invalid, 10 Unknown, 0 Unchecked, 34.9s Time] [2021-11-20 22:57:43,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52023 states. [2021-11-20 22:57:46,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52023 to 52008. [2021-11-20 22:57:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52008 states, 33200 states have (on average 1.3332831325301204) internal successors, (44265), 33626 states have internal predecessors, (44265), 15203 states have call successors, (15203), 3700 states have call predecessors, (15203), 3604 states have return successors, (15325), 14879 states have call predecessors, (15325), 15203 states have call successors, (15325) [2021-11-20 22:57:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52008 states to 52008 states and 74793 transitions. [2021-11-20 22:57:46,328 INFO L78 Accepts]: Start accepts. Automaton has 52008 states and 74793 transitions. Word has length 487 [2021-11-20 22:57:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:57:46,329 INFO L470 AbstractCegarLoop]: Abstraction has 52008 states and 74793 transitions. [2021-11-20 22:57:46,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-20 22:57:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 52008 states and 74793 transitions. [2021-11-20 22:57:46,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-20 22:57:46,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:57:46,697 INFO L514 BasicCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 8, 8, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:57:46,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 22:57:46,697 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:57:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:57:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1068250164, now seen corresponding path program 1 times [2021-11-20 22:57:46,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:57:46,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965081105] [2021-11-20 22:57:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:57:46,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:57:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:57:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1746 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1724 trivial. 0 not checked. [2021-11-20 22:57:47,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:57:47,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965081105] [2021-11-20 22:57:47,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965081105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:57:47,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:57:47,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:57:47,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573855600] [2021-11-20 22:57:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:57:47,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:57:47,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:57:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:57:47,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:57:47,728 INFO L87 Difference]: Start difference. First operand 52008 states and 74793 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-20 22:57:53,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:57:57,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:00,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:03,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:05,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:09,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:13,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:16,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:18,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:20,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:23,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:25,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:26,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:58:26,731 INFO L93 Difference]: Finished difference Result 94712 states and 136661 transitions. [2021-11-20 22:58:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:58:26,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 474 [2021-11-20 22:58:26,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:58:27,206 INFO L225 Difference]: With dead ends: 94712 [2021-11-20 22:58:27,207 INFO L226 Difference]: Without dead ends: 61321 [2021-11-20 22:58:27,317 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:58:27,320 INFO L933 BasicCegarLoop]: 5447 mSDtfsCounter, 2166 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 15 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 8992 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:58:27,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2169 Valid, 8992 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1320 Invalid, 12 Unknown, 0 Unchecked, 36.8s Time] [2021-11-20 22:58:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61321 states. [2021-11-20 22:58:29,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61321 to 61189. [2021-11-20 22:58:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61189 states, 39092 states have (on average 1.33518366929295) internal successors, (52195), 39568 states have internal predecessors, (52195), 17869 states have call successors, (17869), 4327 states have call predecessors, (17869), 4227 states have return successors, (18005), 17509 states have call predecessors, (18005), 17869 states have call successors, (18005) [2021-11-20 22:58:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61189 states to 61189 states and 88069 transitions. [2021-11-20 22:58:30,223 INFO L78 Accepts]: Start accepts. Automaton has 61189 states and 88069 transitions. Word has length 474 [2021-11-20 22:58:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:58:30,225 INFO L470 AbstractCegarLoop]: Abstraction has 61189 states and 88069 transitions. [2021-11-20 22:58:30,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-20 22:58:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 61189 states and 88069 transitions. [2021-11-20 22:58:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2021-11-20 22:58:30,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:58:30,582 INFO L514 BasicCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 7, 7, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:58:30,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 22:58:30,582 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:58:30,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:58:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash -717940320, now seen corresponding path program 1 times [2021-11-20 22:58:30,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:58:30,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221270299] [2021-11-20 22:58:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:58:30,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:58:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:58:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1737 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2021-11-20 22:58:31,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:58:31,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221270299] [2021-11-20 22:58:31,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221270299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:58:31,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:58:31,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:58:31,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471412419] [2021-11-20 22:58:31,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:58:31,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:58:31,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:58:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:58:31,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:58:31,623 INFO L87 Difference]: Start difference. First operand 61189 states and 88069 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-20 22:58:36,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:58:39,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:42,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:45,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:47,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:52,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:56,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:58:58,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:00,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:03,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:05,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:07,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:59:09,064 INFO L93 Difference]: Finished difference Result 113377 states and 163678 transitions. [2021-11-20 22:59:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:59:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 478 [2021-11-20 22:59:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:59:09,321 INFO L225 Difference]: With dead ends: 113377 [2021-11-20 22:59:09,321 INFO L226 Difference]: Without dead ends: 70805 [2021-11-20 22:59:09,415 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:59:09,416 INFO L933 BasicCegarLoop]: 4298 mSDtfsCounter, 2236 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 7851 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:59:09,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 7851 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1085 Invalid, 11 Unknown, 0 Unchecked, 35.1s Time] [2021-11-20 22:59:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70805 states. [2021-11-20 22:59:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70805 to 70755. [2021-11-20 22:59:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70755 states, 45259 states have (on average 1.3358227092953887) internal successors, (60458), 45794 states have internal predecessors, (60458), 20642 states have call successors, (20642), 4951 states have call predecessors, (20642), 4853 states have return successors, (20792), 20243 states have call predecessors, (20792), 20642 states have call successors, (20792) [2021-11-20 22:59:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70755 states to 70755 states and 101892 transitions. [2021-11-20 22:59:12,568 INFO L78 Accepts]: Start accepts. Automaton has 70755 states and 101892 transitions. Word has length 478 [2021-11-20 22:59:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:59:12,569 INFO L470 AbstractCegarLoop]: Abstraction has 70755 states and 101892 transitions. [2021-11-20 22:59:12,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-20 22:59:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 70755 states and 101892 transitions. [2021-11-20 22:59:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2021-11-20 22:59:12,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:59:12,953 INFO L514 BasicCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 13, 13, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:59:12,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 22:59:12,954 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:59:12,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:59:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash -386721419, now seen corresponding path program 1 times [2021-11-20 22:59:12,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:59:12,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52002364] [2021-11-20 22:59:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:59:12,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:59:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:59:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1806 trivial. 0 not checked. [2021-11-20 22:59:13,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:59:13,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52002364] [2021-11-20 22:59:13,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52002364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:59:13,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:59:13,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:59:13,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611550463] [2021-11-20 22:59:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:59:13,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:59:13,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:59:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:59:13,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:59:13,822 INFO L87 Difference]: Start difference. First operand 70755 states and 101892 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-20 22:59:19,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:59:22,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:24,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:28,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:31,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:35,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:38,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:42,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:44,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:47,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:49,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:51,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:59:53,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:59:53,924 INFO L93 Difference]: Finished difference Result 152663 states and 219806 transitions. [2021-11-20 22:59:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:59:53,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 506 [2021-11-20 22:59:53,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:59:54,249 INFO L225 Difference]: With dead ends: 152663 [2021-11-20 22:59:54,249 INFO L226 Difference]: Without dead ends: 84095 [2021-11-20 22:59:54,500 INFO L932 BasicCegarLoop]: 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 [2021-11-20 22:59:54,501 INFO L933 BasicCegarLoop]: 4936 mSDtfsCounter, 2262 mSDsluCounter, 4032 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 5 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 8487 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:59:54,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 8487 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1252 Invalid, 12 Unknown, 0 Unchecked, 36.9s Time] [2021-11-20 22:59:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84095 states. [2021-11-20 22:59:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84095 to 84071. [2021-11-20 22:59:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84071 states, 53842 states have (on average 1.3369117046172134) internal successors, (71982), 54462 states have internal predecessors, (71982), 24389 states have call successors, (24389), 5961 states have call predecessors, (24389), 5839 states have return successors, (24569), 23917 states have call predecessors, (24569), 24389 states have call successors, (24569) [2021-11-20 22:59:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84071 states to 84071 states and 120940 transitions. [2021-11-20 22:59:58,299 INFO L78 Accepts]: Start accepts. Automaton has 84071 states and 120940 transitions. Word has length 506 [2021-11-20 22:59:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:59:58,301 INFO L470 AbstractCegarLoop]: Abstraction has 84071 states and 120940 transitions. [2021-11-20 22:59:58,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-20 22:59:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 84071 states and 120940 transitions. [2021-11-20 22:59:58,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2021-11-20 22:59:58,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:59:58,748 INFO L514 BasicCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 8, 8, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:59:58,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 22:59:58,749 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:59:58,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:59:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 840795962, now seen corresponding path program 1 times [2021-11-20 22:59:58,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:59:58,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580091903] [2021-11-20 22:59:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:59:58,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:59:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:59:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2021-11-20 22:59:59,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:59:59,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580091903] [2021-11-20 22:59:59,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580091903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:59:59,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:59:59,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:59:59,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974994366] [2021-11-20 22:59:59,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:59:59,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:59:59,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:59:59,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:59:59,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:59:59,714 INFO L87 Difference]: Start difference. First operand 84071 states and 120940 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-20 23:00:03,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:00:04,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:00:10,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:12,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:15,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:00:17,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:20,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:23,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:27,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:31,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:35,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:00:37,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []