./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba --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 c0ea6f57e56343c309beb482be7e91bdb158dd17f1a1c3ab8bad32fab13935ec --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:18:01,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:18:01,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:18:01,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:18:01,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:18:01,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:18:01,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:18:01,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:18:01,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:18:01,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:18:01,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:18:01,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:18:01,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:18:01,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:18:01,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:18:01,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:18:01,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:18:01,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:18:01,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:18:01,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:18:01,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:18:01,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:18:01,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:18:01,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:18:01,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:18:01,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:18:01,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:18:01,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:18:01,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:18:01,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:18:01,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:18:01,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:18:01,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:18:01,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:18:01,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:18:01,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:18:01,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:18:01,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:18:01,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:18:01,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:18:01,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:18:01,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:18:01,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:18:01,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:18:01,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:18:01,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:18:01,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:18:01,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:18:01,238 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:18:01,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:18:01,239 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:18:01,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:18:01,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:18:01,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:18:01,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:18:01,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:18:01,241 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:18:01,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:18:01,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:18:01,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:18:01,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:18:01,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:18:01,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:18:01,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:18:01,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:18:01,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:18:01,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:18:01,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:18:01,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:18:01,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:18:01,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:18:01,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:18:01,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:18:01,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:18:01,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:18:01,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:18:01,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:18:01,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:18:01,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:18:01,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:18:01,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0ea6f57e56343c309beb482be7e91bdb158dd17f1a1c3ab8bad32fab13935ec [2022-11-22 01:18:01,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:18:01,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:18:01,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:18:01,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:18:01,570 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:18:01,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-22 01:18:04,669 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:18:05,478 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:18:05,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-22 01:18:05,533 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/data/c141a1525/7c9e0bb6ed9a456785c653795c560f7d/FLAG68bdbd040 [2022-11-22 01:18:05,548 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/data/c141a1525/7c9e0bb6ed9a456785c653795c560f7d [2022-11-22 01:18:05,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:18:05,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:18:05,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:18:05,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:18:05,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:18:05,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:18:05" (1/1) ... [2022-11-22 01:18:05,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c8f4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:05, skipping insertion in model container [2022-11-22 01:18:05,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:18:05" (1/1) ... [2022-11-22 01:18:05,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:18:05,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:18:10,566 WARN L237 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_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i[526761,526774] [2022-11-22 01:18:10,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:18:10,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:18:11,573 WARN L237 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_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i[526761,526774] [2022-11-22 01:18:11,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:18:12,008 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:18:12,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12 WrapperNode [2022-11-22 01:18:12,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:18:12,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:12,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:18:12,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:18:12,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:12,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:12,854 INFO L138 Inliner]: procedures = 589, calls = 7097, calls flagged for inlining = 252, calls inlined = 236, statements flattened = 14259 [2022-11-22 01:18:12,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:18:12,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:18:12,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:18:12,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:18:12,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:12,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:12,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:12,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,502 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:18:13,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:18:13,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:18:13,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:18:13,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (1/1) ... [2022-11-22 01:18:13,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:18:13,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:13,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:18:13,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:18:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:18:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:18:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:18:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:18:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 01:18:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 01:18:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 01:18:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-22 01:18:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-22 01:18:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:18:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:18:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-22 01:18:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-22 01:18:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:18:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:18:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-22 01:18:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-22 01:18:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-22 01:18:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-22 01:18:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-22 01:18:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-22 01:18:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_qlge_err_handler_release_3 [2022-11-22 01:18:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_qlge_err_handler_release_3 [2022-11-22 01:18:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-22 01:18:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-22 01:18:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:18:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:18:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:18:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:18:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-22 01:18:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-22 01:18:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 01:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 01:18:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:18:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:18:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-22 01:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-22 01:18:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:18:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:18:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:18:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:18:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-22 01:18:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-22 01:18:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2022-11-22 01:18:13,955 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2022-11-22 01:18:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:18:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-22 01:18:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-22 01:18:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-22 01:18:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-22 01:18:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-22 01:18:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-22 01:18:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:18:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:18:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:18:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-22 01:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-22 01:18:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:18:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:18:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:18:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-22 01:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-22 01:18:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:18:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:18:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-22 01:18:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-22 01:18:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:18:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:18:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:18:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:18:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:18:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:18:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:18:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:18:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-22 01:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-22 01:18:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-22 01:18:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-22 01:18:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-22 01:18:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-22 01:18:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-22 01:18:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-22 01:18:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-22 01:18:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-22 01:18:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-22 01:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-22 01:18:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:18:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:18:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:18:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-22 01:18:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-22 01:18:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-22 01:18:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-22 01:18:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 01:18:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-22 01:18:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:18:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:18:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-22 01:18:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-22 01:18:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:18:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:18:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-22 01:18:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-22 01:18:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 01:18:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 01:18:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:18:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-22 01:18:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-22 01:18:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 01:18:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 01:18:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:18:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:18:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:18:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:18:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-22 01:18:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-22 01:18:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-22 01:18:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-22 01:18:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-22 01:18:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-22 01:18:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:18:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-22 01:18:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-22 01:18:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:18:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:18:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:18:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:18:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:18:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-22 01:18:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-22 01:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-22 01:18:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-22 01:18:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-22 01:18:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-22 01:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-22 01:18:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-22 01:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:18:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-22 01:18:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-22 01:18:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-22 01:18:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-22 01:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:18:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:18:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:18:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-22 01:18:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-22 01:18:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:18:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-22 01:18:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-22 01:18:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-22 01:18:14,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-22 01:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-22 01:18:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-22 01:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-22 01:18:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-22 01:18:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-22 01:18:14,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-22 01:18:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:18:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:18:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:18:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2022-11-22 01:18:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2022-11-22 01:18:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:18:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:18:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:18:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-22 01:18:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-22 01:18:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-22 01:18:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-22 01:18:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:18:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:18:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2022-11-22 01:18:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2022-11-22 01:18:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:18:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:18:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-22 01:18:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-22 01:18:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:18:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:18:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-22 01:18:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-22 01:18:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:18:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:18:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-22 01:18:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-22 01:18:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:18:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:18:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-22 01:18:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-22 01:18:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:18:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:18:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:18:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:18:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:18:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:18:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-22 01:18:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-22 01:18:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-22 01:18:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-22 01:18:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 01:18:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 01:18:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-22 01:18:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-22 01:18:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:18:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:18:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:18:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:18:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-22 01:18:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-22 01:18:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2022-11-22 01:18:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2022-11-22 01:18:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:18:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:18:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-22 01:18:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-22 01:18:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:18:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:18:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-22 01:18:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-22 01:18:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-22 01:18:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-22 01:18:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:18:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:18:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-22 01:18:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-22 01:18:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:18:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:18:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-22 01:18:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-22 01:18:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:18:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:18:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:18:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:18:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-22 01:18:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-22 01:18:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:18:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:18:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:18:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:18:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-22 01:18:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-22 01:18:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-22 01:18:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-22 01:18:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:18:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:18:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-22 01:18:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-22 01:18:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-22 01:18:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-22 01:18:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-22 01:18:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-22 01:18:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-22 01:18:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-22 01:18:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-22 01:18:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-22 01:18:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-22 01:18:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-22 01:18:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:18:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:18:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:18:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:18:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:18:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:18:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:18:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:18:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-22 01:18:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-22 01:18:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:18:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:18:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:18:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:18:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-22 01:18:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-22 01:18:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-22 01:18:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-22 01:18:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:18:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:18:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-22 01:18:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-22 01:18:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-22 01:18:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-22 01:18:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-22 01:18:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-22 01:18:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:18:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:18:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-22 01:18:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-22 01:18:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:18:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:18:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:18:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:18:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2022-11-22 01:18:14,039 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2022-11-22 01:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:18:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-22 01:18:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-22 01:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:18:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:18:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-22 01:18:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-22 01:18:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:18:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:18:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2022-11-22 01:18:14,042 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2022-11-22 01:18:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-22 01:18:14,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-22 01:18:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:18:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 01:18:14,055 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 01:18:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-22 01:18:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-22 01:18:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-22 01:18:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-22 01:18:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 01:18:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 01:18:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:18:14,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:18:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:18:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-22 01:18:14,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-22 01:18:14,057 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-22 01:18:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-22 01:18:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:18:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:18:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-22 01:18:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-22 01:18:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:18:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:18:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:18:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:18:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-22 01:18:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-22 01:18:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-22 01:18:14,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-22 01:18:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-22 01:18:14,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-22 01:18:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:18:14,060 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:18:14,060 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:18:14,061 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:18:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:18:14,061 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:18:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-22 01:18:14,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-22 01:18:14,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:18:14,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:18:14,062 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-22 01:18:14,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-22 01:18:14,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:18:14,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:18:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:18:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:18:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:18:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:18:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-22 01:18:14,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-22 01:18:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:18:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:18:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-22 01:18:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-22 01:18:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2022-11-22 01:18:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2022-11-22 01:18:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:18:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:18:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:18:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2022-11-22 01:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2022-11-22 01:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2022-11-22 01:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2022-11-22 01:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-22 01:18:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-22 01:18:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:18:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:18:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:18:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:18:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-22 01:18:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-22 01:18:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-22 01:18:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-22 01:18:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:18:14,077 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:18:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-22 01:18:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-22 01:18:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-22 01:18:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-22 01:18:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:18:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:18:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:18:14,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:18:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-22 01:18:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-22 01:18:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-22 01:18:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-22 01:18:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-22 01:18:14,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-22 01:18:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:18:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:18:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:18:14,080 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:18:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-22 01:18:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-22 01:18:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-22 01:18:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-22 01:18:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-22 01:18:14,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-22 01:18:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-22 01:18:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-22 01:18:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:18:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:18:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-22 01:18:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-22 01:18:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:18:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:18:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-22 01:18:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-22 01:18:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-22 01:18:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-22 01:18:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-22 01:18:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-22 01:18:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-22 01:18:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-22 01:18:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:18:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:18:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:18:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:18:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:18:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-22 01:18:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-22 01:18:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-22 01:18:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-22 01:18:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-22 01:18:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-22 01:18:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-22 01:18:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-22 01:18:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 01:18:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 01:18:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-22 01:18:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-22 01:18:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-22 01:18:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-22 01:18:15,790 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:18:15,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:18:36,315 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:18:43,261 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:18:43,261 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:18:43,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:43 BoogieIcfgContainer [2022-11-22 01:18:43,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:18:43,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:18:43,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:18:43,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:18:43,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:18:05" (1/3) ... [2022-11-22 01:18:43,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b058727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:43, skipping insertion in model container [2022-11-22 01:18:43,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:18:12" (2/3) ... [2022-11-22 01:18:43,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b058727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:18:43, skipping insertion in model container [2022-11-22 01:18:43,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:18:43" (3/3) ... [2022-11-22 01:18:43,282 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-22 01:18:43,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:18:43,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:18:43,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:18:43,471 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@260c53ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:18:43,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:18:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 3449 states, 2117 states have (on average 1.3424657534246576) internal successors, (2842), 2183 states have internal predecessors, (2842), 1109 states have call successors, (1109), 221 states have call predecessors, (1109), 221 states have return successors, (1109), 1096 states have call predecessors, (1109), 1109 states have call successors, (1109) [2022-11-22 01:18:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:18:43,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:43,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:43,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:18:43,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:43,509 INFO L85 PathProgramCache]: Analyzing trace with hash 193386967, now seen corresponding path program 1 times [2022-11-22 01:18:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:43,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146805204] [2022-11-22 01:18:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:45,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:45,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146805204] [2022-11-22 01:18:45,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146805204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:45,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:45,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:18:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184966820] [2022-11-22 01:18:45,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:45,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:45,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:45,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:45,232 INFO L87 Difference]: Start difference. First operand has 3449 states, 2117 states have (on average 1.3424657534246576) internal successors, (2842), 2183 states have internal predecessors, (2842), 1109 states have call successors, (1109), 221 states have call predecessors, (1109), 221 states have return successors, (1109), 1096 states have call predecessors, (1109), 1109 states have call successors, (1109) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:18:47,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:50,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:18:53,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:56,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:18:59,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:04,695 INFO L93 Difference]: Finished difference Result 10315 states and 15248 transitions. [2022-11-22 01:19:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:04,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-22 01:19:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:04,784 INFO L225 Difference]: With dead ends: 10315 [2022-11-22 01:19:04,784 INFO L226 Difference]: Without dead ends: 6847 [2022-11-22 01:19:04,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:04,817 INFO L413 NwaCegarLoop]: 5542 mSDtfsCounter, 4998 mSDsluCounter, 4422 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5004 SdHoareTripleChecker+Valid, 9964 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:04,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5004 Valid, 9964 Invalid, 1262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1256 Invalid, 3 Unknown, 0 Unchecked, 18.7s Time] [2022-11-22 01:19:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-11-22 01:19:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 6841. [2022-11-22 01:19:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 4191 states have (on average 1.3376282510140778) internal successors, (5606), 4316 states have internal predecessors, (5606), 2209 states have call successors, (2209), 441 states have call predecessors, (2209), 440 states have return successors, (2209), 2175 states have call predecessors, (2209), 2203 states have call successors, (2209) [2022-11-22 01:19:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10024 transitions. [2022-11-22 01:19:05,393 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10024 transitions. Word has length 13 [2022-11-22 01:19:05,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:05,394 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 10024 transitions. [2022-11-22 01:19:05,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10024 transitions. [2022-11-22 01:19:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:19:05,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:05,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:05,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:19:05,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:05,407 INFO L85 PathProgramCache]: Analyzing trace with hash -678023576, now seen corresponding path program 1 times [2022-11-22 01:19:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:05,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914302248] [2022-11-22 01:19:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:05,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:19:06,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:06,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914302248] [2022-11-22 01:19:06,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914302248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:06,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:06,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:19:06,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104136218] [2022-11-22 01:19:06,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:06,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:06,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:06,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:06,148 INFO L87 Difference]: Start difference. First operand 6841 states and 10024 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:09,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:19:15,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:17,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:21,264 INFO L93 Difference]: Finished difference Result 9830 states and 14244 transitions. [2022-11-22 01:19:21,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:19:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:21,327 INFO L225 Difference]: With dead ends: 9830 [2022-11-22 01:19:21,327 INFO L226 Difference]: Without dead ends: 9827 [2022-11-22 01:19:21,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:21,335 INFO L413 NwaCegarLoop]: 5188 mSDtfsCounter, 4984 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 7009 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:21,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 7009 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1010 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2022-11-22 01:19:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9827 states. [2022-11-22 01:19:21,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9827 to 9822. [2022-11-22 01:19:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9822 states, 6039 states have (on average 1.331511839708561) internal successors, (8041), 6227 states have internal predecessors, (8041), 3094 states have call successors, (3094), 689 states have call predecessors, (3094), 688 states have return successors, (3102), 3045 states have call predecessors, (3102), 3089 states have call successors, (3102) [2022-11-22 01:19:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9822 states to 9822 states and 14237 transitions. [2022-11-22 01:19:21,870 INFO L78 Accepts]: Start accepts. Automaton has 9822 states and 14237 transitions. Word has length 15 [2022-11-22 01:19:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:21,870 INFO L495 AbstractCegarLoop]: Abstraction has 9822 states and 14237 transitions. [2022-11-22 01:19:21,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 9822 states and 14237 transitions. [2022-11-22 01:19:21,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:19:21,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:21,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:21,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:19:21,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash 453556298, now seen corresponding path program 1 times [2022-11-22 01:19:21,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:21,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382552279] [2022-11-22 01:19:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:19:22,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:22,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382552279] [2022-11-22 01:19:22,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382552279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:22,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:22,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:19:22,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711837935] [2022-11-22 01:19:22,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:22,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:22,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:22,555 INFO L87 Difference]: Start difference. First operand 9822 states and 14237 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:25,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:19:28,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:32,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:34,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:38,889 INFO L93 Difference]: Finished difference Result 10243 states and 14838 transitions. [2022-11-22 01:19:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 01:19:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:38,962 INFO L225 Difference]: With dead ends: 10243 [2022-11-22 01:19:38,962 INFO L226 Difference]: Without dead ends: 10240 [2022-11-22 01:19:38,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:38,974 INFO L413 NwaCegarLoop]: 5196 mSDtfsCounter, 4975 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:38,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 7040 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1016 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-22 01:19:38,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10240 states. [2022-11-22 01:19:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10240 to 10235. [2022-11-22 01:19:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10235 states, 6295 states have (on average 1.3334392374900714) internal successors, (8394), 6494 states have internal predecessors, (8394), 3213 states have call successors, (3213), 726 states have call predecessors, (3213), 726 states have return successors, (3224), 3163 states have call predecessors, (3224), 3209 states have call successors, (3224) [2022-11-22 01:19:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10235 states to 10235 states and 14831 transitions. [2022-11-22 01:19:39,623 INFO L78 Accepts]: Start accepts. Automaton has 10235 states and 14831 transitions. Word has length 16 [2022-11-22 01:19:39,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:19:39,624 INFO L495 AbstractCegarLoop]: Abstraction has 10235 states and 14831 transitions. [2022-11-22 01:19:39,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 10235 states and 14831 transitions. [2022-11-22 01:19:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:19:39,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:19:39,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:19:39,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:19:39,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:19:39,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:19:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1172798891, now seen corresponding path program 1 times [2022-11-22 01:19:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:19:39,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424721614] [2022-11-22 01:19:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:19:39,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:19:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:19:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:19:40,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:19:40,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424721614] [2022-11-22 01:19:40,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424721614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:19:40,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:19:40,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:19:40,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552479204] [2022-11-22 01:19:40,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:19:40,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:19:40,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:19:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:19:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:40,261 INFO L87 Difference]: Start difference. First operand 10235 states and 14831 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:19:44,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:19:46,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:48,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:50,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:52,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:54,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:55,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:19:59,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:19:59,558 INFO L93 Difference]: Finished difference Result 18518 states and 26967 transitions. [2022-11-22 01:19:59,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:19:59,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 01:19:59,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:19:59,687 INFO L225 Difference]: With dead ends: 18518 [2022-11-22 01:19:59,687 INFO L226 Difference]: Without dead ends: 18514 [2022-11-22 01:19:59,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:19:59,700 INFO L413 NwaCegarLoop]: 5794 mSDtfsCounter, 4793 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 9716 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:19:59,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 9716 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1261 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2022-11-22 01:19:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18514 states. [2022-11-22 01:20:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18514 to 18511. [2022-11-22 01:20:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18511 states, 11382 states have (on average 1.333509049376208) internal successors, (15178), 11730 states have internal predecessors, (15178), 5803 states have call successors, (5803), 1349 states have call predecessors, (5803), 1325 states have return successors, (5975), 5674 states have call predecessors, (5975), 5799 states have call successors, (5975) [2022-11-22 01:20:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18511 states to 18511 states and 26956 transitions. [2022-11-22 01:20:00,903 INFO L78 Accepts]: Start accepts. Automaton has 18511 states and 26956 transitions. Word has length 17 [2022-11-22 01:20:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:00,904 INFO L495 AbstractCegarLoop]: Abstraction has 18511 states and 26956 transitions. [2022-11-22 01:20:00,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18511 states and 26956 transitions. [2022-11-22 01:20:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:20:00,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:00,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:20:00,906 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:20:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1994487661, now seen corresponding path program 1 times [2022-11-22 01:20:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238056537] [2022-11-22 01:20:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:01,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:01,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238056537] [2022-11-22 01:20:01,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238056537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:01,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:01,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924077741] [2022-11-22 01:20:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:01,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:01,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:01,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:01,463 INFO L87 Difference]: Start difference. First operand 18511 states and 26956 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:04,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:20:06,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:10,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:12,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:16,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:16,688 INFO L93 Difference]: Finished difference Result 18518 states and 26961 transitions. [2022-11-22 01:20:16,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:16,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 01:20:16,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:16,781 INFO L225 Difference]: With dead ends: 18518 [2022-11-22 01:20:16,782 INFO L226 Difference]: Without dead ends: 18510 [2022-11-22 01:20:16,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:16,792 INFO L413 NwaCegarLoop]: 5185 mSDtfsCounter, 4977 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 7006 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:16,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 7006 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1009 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2022-11-22 01:20:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18510 states. [2022-11-22 01:20:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18510 to 18505. [2022-11-22 01:20:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18505 states, 11377 states have (on average 1.3333919310890392) internal successors, (15170), 11724 states have internal predecessors, (15170), 5802 states have call successors, (5802), 1349 states have call predecessors, (5802), 1325 states have return successors, (5975), 5674 states have call predecessors, (5975), 5799 states have call successors, (5975) [2022-11-22 01:20:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18505 states to 18505 states and 26947 transitions. [2022-11-22 01:20:17,861 INFO L78 Accepts]: Start accepts. Automaton has 18505 states and 26947 transitions. Word has length 18 [2022-11-22 01:20:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:17,862 INFO L495 AbstractCegarLoop]: Abstraction has 18505 states and 26947 transitions. [2022-11-22 01:20:17,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:17,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 26947 transitions. [2022-11-22 01:20:17,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-22 01:20:17,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:17,878 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:20:17,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:20:17,879 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:20:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1028349061, now seen corresponding path program 1 times [2022-11-22 01:20:17,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:17,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019247126] [2022-11-22 01:20:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:17,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:20:18,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:18,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019247126] [2022-11-22 01:20:18,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019247126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:18,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:18,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:20:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484731171] [2022-11-22 01:20:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:18,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:18,653 INFO L87 Difference]: Start difference. First operand 18505 states and 26947 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:20:20,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:20:23,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:27,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:20:30,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:32,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:38,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:38,782 INFO L93 Difference]: Finished difference Result 51407 states and 74540 transitions. [2022-11-22 01:20:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:38,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-22 01:20:38,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:38,983 INFO L225 Difference]: With dead ends: 51407 [2022-11-22 01:20:38,984 INFO L226 Difference]: Without dead ends: 32903 [2022-11-22 01:20:39,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:39,099 INFO L413 NwaCegarLoop]: 5238 mSDtfsCounter, 3331 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3334 SdHoareTripleChecker+Valid, 9599 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:39,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3334 Valid, 9599 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1320 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2022-11-22 01:20:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32903 states. [2022-11-22 01:20:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32903 to 32888. [2022-11-22 01:20:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32888 states, 20254 states have (on average 1.3279845956354301) internal successors, (26897), 20872 states have internal predecessors, (26897), 10164 states have call successors, (10164), 2509 states have call predecessors, (10164), 2469 states have return successors, (10515), 9937 states have call predecessors, (10515), 10161 states have call successors, (10515) [2022-11-22 01:20:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32888 states to 32888 states and 47576 transitions. [2022-11-22 01:20:41,437 INFO L78 Accepts]: Start accepts. Automaton has 32888 states and 47576 transitions. Word has length 62 [2022-11-22 01:20:41,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:41,438 INFO L495 AbstractCegarLoop]: Abstraction has 32888 states and 47576 transitions. [2022-11-22 01:20:41,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 01:20:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand 32888 states and 47576 transitions. [2022-11-22 01:20:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:20:41,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:41,448 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:20:41,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:20:41,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:20:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1780627383, now seen corresponding path program 1 times [2022-11-22 01:20:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:41,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7352156] [2022-11-22 01:20:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:41,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:20:42,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:42,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7352156] [2022-11-22 01:20:42,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7352156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:42,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:42,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:20:42,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902774864] [2022-11-22 01:20:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:42,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:42,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:42,065 INFO L87 Difference]: Start difference. First operand 32888 states and 47576 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:20:46,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:20:48,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:50,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:54,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:57,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:00,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:04,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:07,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:21:07,910 INFO L93 Difference]: Finished difference Result 76831 states and 111303 transitions. [2022-11-22 01:21:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:21:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-22 01:21:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:21:08,156 INFO L225 Difference]: With dead ends: 76831 [2022-11-22 01:21:08,156 INFO L226 Difference]: Without dead ends: 43944 [2022-11-22 01:21:08,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:08,307 INFO L413 NwaCegarLoop]: 6375 mSDtfsCounter, 4966 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 10768 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:21:08,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4970 Valid, 10768 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1412 Invalid, 5 Unknown, 0 Unchecked, 23.6s Time] [2022-11-22 01:21:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43944 states. [2022-11-22 01:21:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43944 to 43929. [2022-11-22 01:21:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43929 states, 27024 states have (on average 1.329188869153345) internal successors, (35920), 27838 states have internal predecessors, (35920), 13651 states have call successors, (13651), 3305 states have call predecessors, (13651), 3253 states have return successors, (14133), 13356 states have call predecessors, (14133), 13648 states have call successors, (14133) [2022-11-22 01:21:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43929 states to 43929 states and 63704 transitions. [2022-11-22 01:21:10,999 INFO L78 Accepts]: Start accepts. Automaton has 43929 states and 63704 transitions. Word has length 58 [2022-11-22 01:21:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:21:11,002 INFO L495 AbstractCegarLoop]: Abstraction has 43929 states and 63704 transitions. [2022-11-22 01:21:11,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:21:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 43929 states and 63704 transitions. [2022-11-22 01:21:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:21:11,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:21:11,018 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:21:11,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:21:11,018 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:21:11,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:21:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1556762391, now seen corresponding path program 1 times [2022-11-22 01:21:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:21:11,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594057417] [2022-11-22 01:21:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:21:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:21:12,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:21:12,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594057417] [2022-11-22 01:21:12,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594057417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:21:12,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:21:12,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:21:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585597599] [2022-11-22 01:21:12,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:21:12,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:21:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:21:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:21:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:12,569 INFO L87 Difference]: Start difference. First operand 43929 states and 63704 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:21:15,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:21:18,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:23,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:24,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:21:31,463 INFO L93 Difference]: Finished difference Result 46057 states and 66694 transitions. [2022-11-22 01:21:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:21:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-11-22 01:21:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:21:31,680 INFO L225 Difference]: With dead ends: 46057 [2022-11-22 01:21:31,681 INFO L226 Difference]: Without dead ends: 46054 [2022-11-22 01:21:31,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:31,712 INFO L413 NwaCegarLoop]: 4609 mSDtfsCounter, 541 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 8809 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:21:31,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 8809 Invalid, 1246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-22 01:21:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46054 states. [2022-11-22 01:21:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46054 to 46054. [2022-11-22 01:21:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46054 states, 28314 states have (on average 1.3319559228650137) internal successors, (37713), 29157 states have internal predecessors, (37713), 14242 states have call successors, (14242), 3549 states have call predecessors, (14242), 3497 states have return successors, (14725), 13938 states have call predecessors, (14725), 14240 states have call successors, (14725) [2022-11-22 01:21:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46054 states to 46054 states and 66680 transitions. [2022-11-22 01:21:34,819 INFO L78 Accepts]: Start accepts. Automaton has 46054 states and 66680 transitions. Word has length 68 [2022-11-22 01:21:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:21:34,821 INFO L495 AbstractCegarLoop]: Abstraction has 46054 states and 66680 transitions. [2022-11-22 01:21:34,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:21:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 46054 states and 66680 transitions. [2022-11-22 01:21:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-22 01:21:34,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:21:34,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:21:34,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:21:34,853 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:21:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:21:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash -228832779, now seen corresponding path program 1 times [2022-11-22 01:21:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:21:34,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589057836] [2022-11-22 01:21:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:21:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:35,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:21:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589057836] [2022-11-22 01:21:35,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:21:35,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173146989] [2022-11-22 01:21:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:35,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:21:35,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:21:35,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:21:35,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:21:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:38,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 8332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:21:38,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:21:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:21:38,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:21:38,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173146989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:21:38,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:21:38,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:21:38,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311557922] [2022-11-22 01:21:38,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:21:38,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:21:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:21:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:21:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:38,580 INFO L87 Difference]: Start difference. First operand 46054 states and 66680 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-22 01:21:45,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:48,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:21:53,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:59,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:22:02,703 INFO L93 Difference]: Finished difference Result 133244 states and 193051 transitions. [2022-11-22 01:22:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:22:02,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2022-11-22 01:22:02,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:22:03,368 INFO L225 Difference]: With dead ends: 133244 [2022-11-22 01:22:03,368 INFO L226 Difference]: Without dead ends: 87191 [2022-11-22 01:22:03,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:22:03,657 INFO L413 NwaCegarLoop]: 6485 mSDtfsCounter, 4674 mSDsluCounter, 4289 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 38 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 10774 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:22:03,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4677 Valid, 10774 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1547 Invalid, 4 Unknown, 0 Unchecked, 20.0s Time] [2022-11-22 01:22:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87191 states. [2022-11-22 01:22:07,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87191 to 87149. [2022-11-22 01:22:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87149 states, 53732 states have (on average 1.3309945656219757) internal successors, (71517), 55430 states have internal predecessors, (71517), 26767 states have call successors, (26767), 6762 states have call predecessors, (26767), 6649 states have return successors, (27663), 26111 states have call predecessors, (27663), 26765 states have call successors, (27663) [2022-11-22 01:22:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87149 states to 87149 states and 125947 transitions. [2022-11-22 01:22:08,588 INFO L78 Accepts]: Start accepts. Automaton has 87149 states and 125947 transitions. Word has length 97 [2022-11-22 01:22:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:22:08,589 INFO L495 AbstractCegarLoop]: Abstraction has 87149 states and 125947 transitions. [2022-11-22 01:22:08,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-22 01:22:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 87149 states and 125947 transitions. [2022-11-22 01:22:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:22:08,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:22:08,621 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:22:08,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:22:08,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:22:08,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:22:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:22:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1353938379, now seen corresponding path program 1 times [2022-11-22 01:22:08,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:22:08,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638117126] [2022-11-22 01:22:08,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:22:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:22:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:22:09,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:22:09,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638117126] [2022-11-22 01:22:09,544 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:22:09,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060781966] [2022-11-22 01:22:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:22:09,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:22:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:22:09,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:22:09,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a474c94-43a1-4e31-b4db-ce4ed501c7fb/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:22:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:22:13,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 8467 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:22:13,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:22:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:22:13,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:22:13,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060781966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:22:13,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:22:13,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:22:13,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308089670] [2022-11-22 01:22:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:22:13,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:22:13,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:22:13,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:22:13,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:22:13,092 INFO L87 Difference]: Start difference. First operand 87149 states and 125947 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-22 01:22:15,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:18,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:22:29,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:31,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:38,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:22:38,987 INFO L93 Difference]: Finished difference Result 213608 states and 309022 transitions. [2022-11-22 01:22:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:22:38,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2022-11-22 01:22:38,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:22:39,735 INFO L225 Difference]: With dead ends: 213608 [2022-11-22 01:22:39,736 INFO L226 Difference]: Without dead ends: 126460 [2022-11-22 01:22:40,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:22:40,308 INFO L413 NwaCegarLoop]: 7572 mSDtfsCounter, 4818 mSDsluCounter, 4370 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 11942 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:22:40,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 11942 Invalid, 1685 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1670 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2022-11-22 01:22:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126460 states.