./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 4e7fbc69 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_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/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_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 13:48:19,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:48:19,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:48:19,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:48:19,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:48:19,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:48:19,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:48:19,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:48:19,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:48:19,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:48:19,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:48:19,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:48:19,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:48:19,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:48:19,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:48:19,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:48:19,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:48:19,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:48:19,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:48:19,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:48:19,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:48:19,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:48:19,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:48:19,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:48:19,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:48:19,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:48:19,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:48:19,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:48:19,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:48:19,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:48:19,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:48:19,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:48:19,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:48:19,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:48:19,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:48:19,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:48:19,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:48:19,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:48:19,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:48:19,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:48:19,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:48:19,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:48:19,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:48:19,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:48:19,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:48:19,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:48:19,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:48:19,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:48:19,636 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:48:19,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:48:19,637 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:48:19,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:48:19,638 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:48:19,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:48:19,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:48:19,638 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:48:19,639 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:48:19,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:48:19,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:48:19,639 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:48:19,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:48:19,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:48:19,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:48:19,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:48:19,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:48:19,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:48:19,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:48:19,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:48:19,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:48:19,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:48:19,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:48:19,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:48:19,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:48:19,642 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:48:19,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:48:19,644 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_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0ea6f57e56343c309beb482be7e91bdb158dd17f1a1c3ab8bad32fab13935ec [2022-11-23 13:48:19,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:48:19,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:48:19,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:48:19,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:48:19,976 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:48:19,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-23 13:48:23,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:48:23,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:48:23,931 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-23 13:48:23,996 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/data/920297316/a1f6c61fc801414e93edda114c7950f5/FLAGa73c40fa4 [2022-11-23 13:48:24,013 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/data/920297316/a1f6c61fc801414e93edda114c7950f5 [2022-11-23 13:48:24,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:48:24,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:48:24,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:48:24,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:48:24,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:48:24,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2022-11-23 13:48:24,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63078f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:24, skipping insertion in model container [2022-11-23 13:48:24,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:24" (1/1) ... [2022-11-23 13:48:24,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:48:24,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:48:29,182 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_0d59f859-6130-497a-818f-eac0e77c5a9e/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] [2022-11-23 13:48:29,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:48:29,504 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:48:30,125 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_0d59f859-6130-497a-818f-eac0e77c5a9e/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] [2022-11-23 13:48:30,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:48:30,587 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:48:30,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30 WrapperNode [2022-11-23 13:48:30,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:48:30,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:48:30,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:48:30,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:48:30,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:30,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,257 INFO L138 Inliner]: procedures = 589, calls = 7097, calls flagged for inlining = 252, calls inlined = 236, statements flattened = 14259 [2022-11-23 13:48:31,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:48:31,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:48:31,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:48:31,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:48:31,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:31,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,058 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:48:32,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:48:32,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:48:32,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:48:32,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (1/1) ... [2022-11-23 13:48:32,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:48:32,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:48:32,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:48:32,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d59f859-6130-497a-818f-eac0e77c5a9e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:48:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 13:48:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 13:48:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-23 13:48:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-23 13:48:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 13:48:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-23 13:48:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-23 13:48:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-23 13:48:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-23 13:48:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 13:48:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 13:48:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-23 13:48:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-23 13:48:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-23 13:48:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-23 13:48:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:48:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:48:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-23 13:48:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-23 13:48:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-23 13:48:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-23 13:48:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-23 13:48:32,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-23 13:48:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_qlge_err_handler_release_3 [2022-11-23 13:48:32,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_qlge_err_handler_release_3 [2022-11-23 13:48:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-23 13:48:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-23 13:48:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 13:48:32,374 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 13:48:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-23 13:48:32,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-23 13:48:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-23 13:48:32,375 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-23 13:48:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-23 13:48:32,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-23 13:48:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 13:48:32,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 13:48:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-23 13:48:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-23 13:48:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 13:48:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 13:48:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 13:48:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 13:48:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 13:48:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 13:48:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-23 13:48:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-23 13:48:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2022-11-23 13:48:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2022-11-23 13:48:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 13:48:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 13:48:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-23 13:48:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-23 13:48:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-23 13:48:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-23 13:48:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-23 13:48:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-23 13:48:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-23 13:48:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-23 13:48:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 13:48:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 13:48:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-23 13:48:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-23 13:48:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 13:48:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 13:48:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 13:48:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 13:48:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-23 13:48:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-23 13:48:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 13:48:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 13:48:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-23 13:48:32,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-23 13:48:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-23 13:48:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-23 13:48:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 13:48:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 13:48:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 13:48:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 13:48:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:48:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 13:48:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 13:48:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-23 13:48:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-23 13:48:32,403 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-23 13:48:32,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-23 13:48:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-23 13:48:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-23 13:48:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-23 13:48:32,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-23 13:48:32,404 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-23 13:48:32,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-23 13:48:32,405 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-23 13:48:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-23 13:48:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 13:48:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 13:48:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 13:48:32,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 13:48:32,406 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-23 13:48:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-23 13:48:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-23 13:48:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-23 13:48:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-23 13:48:32,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-23 13:48:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 13:48:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 13:48:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-23 13:48:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-23 13:48:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 13:48:32,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 13:48:32,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-23 13:48:32,412 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-23 13:48:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-23 13:48:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-23 13:48:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:48:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-23 13:48:32,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-23 13:48:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 13:48:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 13:48:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 13:48:32,421 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 13:48:32,421 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 13:48:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 13:48:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-23 13:48:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-23 13:48:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-23 13:48:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-23 13:48:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-23 13:48:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-23 13:48:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:48:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-23 13:48:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-23 13:48:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:48:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 13:48:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 13:48:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 13:48:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 13:48:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 13:48:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 13:48:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-23 13:48:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-23 13:48:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-23 13:48:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-23 13:48:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-23 13:48:32,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-23 13:48:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-23 13:48:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-23 13:48:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-23 13:48:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-23 13:48:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-23 13:48:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-23 13:48:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-23 13:48:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-23 13:48:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 13:48:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 13:48:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 13:48:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 13:48:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-23 13:48:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-23 13:48:32,426 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-23 13:48:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-23 13:48:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-23 13:48:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-23 13:48:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-23 13:48:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-23 13:48:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:48:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-23 13:48:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-23 13:48:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-23 13:48:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-23 13:48:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-23 13:48:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-23 13:48:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:48:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 13:48:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 13:48:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2022-11-23 13:48:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2022-11-23 13:48:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 13:48:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 13:48:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:48:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-23 13:48:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-23 13:48:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-23 13:48:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-23 13:48:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:48:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:48:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2022-11-23 13:48:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2022-11-23 13:48:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 13:48:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 13:48:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-23 13:48:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-23 13:48:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 13:48:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 13:48:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-23 13:48:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-23 13:48:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 13:48:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 13:48:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-23 13:48:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-23 13:48:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 13:48:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 13:48:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-23 13:48:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-23 13:48:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 13:48:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 13:48:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 13:48:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 13:48:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-23 13:48:32,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-23 13:48:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-23 13:48:32,434 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-23 13:48:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-23 13:48:32,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-23 13:48:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-23 13:48:32,434 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-23 13:48:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-23 13:48:32,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-23 13:48:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 13:48:32,435 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 13:48:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 13:48:32,435 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 13:48:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-23 13:48:32,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-23 13:48:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2022-11-23 13:48:32,436 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2022-11-23 13:48:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:48:32,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:48:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-23 13:48:32,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-23 13:48:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 13:48:32,436 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 13:48:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-23 13:48:32,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-23 13:48:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-23 13:48:32,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-23 13:48:32,437 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 13:48:32,438 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 13:48:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-23 13:48:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-23 13:48:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:48:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:48:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-23 13:48:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-23 13:48:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 13:48:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 13:48:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 13:48:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 13:48:32,444 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-23 13:48:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-23 13:48:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 13:48:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 13:48:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 13:48:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 13:48:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-23 13:48:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-23 13:48:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-23 13:48:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-23 13:48:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 13:48:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 13:48:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-23 13:48:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-23 13:48:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-23 13:48:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-23 13:48:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-23 13:48:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-23 13:48:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-23 13:48:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-23 13:48:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-23 13:48:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-23 13:48:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-23 13:48:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-23 13:48:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 13:48:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 13:48:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 13:48:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 13:48:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 13:48:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 13:48:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 13:48:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 13:48:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-23 13:48:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-23 13:48:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 13:48:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 13:48:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 13:48:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 13:48:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-23 13:48:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-23 13:48:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-23 13:48:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-23 13:48:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-23 13:48:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-23 13:48:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 13:48:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 13:48:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-23 13:48:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-23 13:48:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-23 13:48:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-23 13:48:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 13:48:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 13:48:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-23 13:48:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-23 13:48:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 13:48:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 13:48:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 13:48:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 13:48:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2022-11-23 13:48:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2022-11-23 13:48:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:48:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 13:48:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 13:48:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-23 13:48:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-23 13:48:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 13:48:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 13:48:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-23 13:48:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-23 13:48:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 13:48:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 13:48:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2022-11-23 13:48:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2022-11-23 13:48:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-23 13:48:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-23 13:48:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:48:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 13:48:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 13:48:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-23 13:48:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-23 13:48:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-23 13:48:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-23 13:48:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-23 13:48:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-23 13:48:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 13:48:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 13:48:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:48:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-23 13:48:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-23 13:48:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-23 13:48:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-23 13:48:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 13:48:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 13:48:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-23 13:48:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-23 13:48:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 13:48:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 13:48:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 13:48:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 13:48:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-23 13:48:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-23 13:48:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-23 13:48:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-23 13:48:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-23 13:48:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-23 13:48:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-23 13:48:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-23 13:48:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 13:48:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 13:48:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-23 13:48:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-23 13:48:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-23 13:48:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-23 13:48:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-23 13:48:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-23 13:48:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-23 13:48:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-23 13:48:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 13:48:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 13:48:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 13:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 13:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 13:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 13:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-23 13:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-23 13:48:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 13:48:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 13:48:32,476 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-23 13:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-23 13:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2022-11-23 13:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2022-11-23 13:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-23 13:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-23 13:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:48:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:48:32,477 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2022-11-23 13:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2022-11-23 13:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2022-11-23 13:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2022-11-23 13:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-23 13:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-23 13:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 13:48:32,478 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 13:48:32,478 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 13:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 13:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-23 13:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-23 13:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-23 13:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-23 13:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 13:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 13:48:32,479 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-23 13:48:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-23 13:48:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-23 13:48:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-23 13:48:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 13:48:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 13:48:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-23 13:48:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-23 13:48:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-23 13:48:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-23 13:48:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-23 13:48:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-23 13:48:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-23 13:48:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-23 13:48:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-23 13:48:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-23 13:48:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 13:48:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 13:48:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-23 13:48:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-23 13:48:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-23 13:48:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-23 13:48:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-23 13:48:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-23 13:48:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-23 13:48:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-23 13:48:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 13:48:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 13:48:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-23 13:48:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-23 13:48:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 13:48:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 13:48:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-23 13:48:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-23 13:48:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-23 13:48:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-23 13:48:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-23 13:48:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-23 13:48:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-23 13:48:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-23 13:48:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 13:48:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 13:48:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 13:48:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 13:48:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:48:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-23 13:48:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-23 13:48:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-23 13:48:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-23 13:48:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-23 13:48:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-23 13:48:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-23 13:48:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-23 13:48:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-23 13:48:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-23 13:48:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-23 13:48:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-23 13:48:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-23 13:48:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-23 13:48:34,231 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:48:34,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:48:55,098 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:49:03,228 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:49:03,228 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 13:49:03,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:03 BoogieIcfgContainer [2022-11-23 13:49:03,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:49:03,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:49:03,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:49:03,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:49:03,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:48:24" (1/3) ... [2022-11-23 13:49:03,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5197af29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:03, skipping insertion in model container [2022-11-23 13:49:03,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:30" (2/3) ... [2022-11-23 13:49:03,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5197af29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:03, skipping insertion in model container [2022-11-23 13:49:03,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:03" (3/3) ... [2022-11-23 13:49:03,247 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--net--ethernet--qlogic--qlge--qlge.ko-main.cil.out.i [2022-11-23 13:49:03,265 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:49:03,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:49:03,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:49:03,390 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;@759f495c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:49:03,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:49:03,408 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) [2022-11-23 13:49:03,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:49:03,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:49:03,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:49:03,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:49:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:49:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash 193386967, now seen corresponding path program 1 times [2022-11-23 13:49:03,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:49:03,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598793551] [2022-11-23 13:49:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:49:03,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:49:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:49:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:49:04,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:49:04,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598793551] [2022-11-23 13:49:04,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598793551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:49:04,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:49:04,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:49:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767357870] [2022-11-23 13:49:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:49:04,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:49:04,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:49:05,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:49:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:49:05,010 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) [2022-11-23 13:49:10,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:49:13,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:18,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:21,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:49:25,080 INFO L93 Difference]: Finished difference Result 10315 states and 15248 transitions. [2022-11-23 13:49:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:49:25,083 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 [2022-11-23 13:49:25,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:49:25,183 INFO L225 Difference]: With dead ends: 10315 [2022-11-23 13:49:25,183 INFO L226 Difference]: Without dead ends: 6847 [2022-11-23 13:49:25,225 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 [2022-11-23 13:49:25,230 INFO L413 NwaCegarLoop]: 5542 mSDtfsCounter, 4998 mSDsluCounter, 4422 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s 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, 19.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:49:25,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5004 Valid, 9964 Invalid, 1262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1256 Invalid, 3 Unknown, 0 Unchecked, 19.4s Time] [2022-11-23 13:49:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-11-23 13:49:25,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 6841. [2022-11-23 13:49:25,789 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) [2022-11-23 13:49:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10024 transitions. [2022-11-23 13:49:25,875 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10024 transitions. Word has length 13 [2022-11-23 13:49:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:49:25,876 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 10024 transitions. [2022-11-23 13:49:25,876 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) [2022-11-23 13:49:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10024 transitions. [2022-11-23 13:49:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:49:25,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:49:25,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:49:25,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:49:25,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:49:25,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:49:25,893 INFO L85 PathProgramCache]: Analyzing trace with hash -678023576, now seen corresponding path program 1 times [2022-11-23 13:49:25,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:49:25,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713136709] [2022-11-23 13:49:25,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:49:25,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:49:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:49:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:49:26,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:49:26,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713136709] [2022-11-23 13:49:26,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713136709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:49:26,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:49:26,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:49:26,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561680433] [2022-11-23 13:49:26,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:49:26,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:49:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:49:26,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:49:26,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:49:26,822 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) [2022-11-23 13:49:30,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:49:32,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:35,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:37,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:40,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:44,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:47,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:49:47,307 INFO L93 Difference]: Finished difference Result 8359 states and 12167 transitions. [2022-11-23 13:49:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:49:47,308 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 [2022-11-23 13:49:47,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:49:47,374 INFO L225 Difference]: With dead ends: 8359 [2022-11-23 13:49:47,374 INFO L226 Difference]: Without dead ends: 8356 [2022-11-23 13:49:47,383 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 [2022-11-23 13:49:47,384 INFO L413 NwaCegarLoop]: 5205 mSDtfsCounter, 5018 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 7026 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:49:47,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 7026 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1026 Invalid, 4 Unknown, 0 Unchecked, 20.1s Time] [2022-11-23 13:49:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2022-11-23 13:49:47,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 8351. [2022-11-23 13:49:47,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8351 states, 5131 states have (on average 1.334242837653479) internal successors, (6846), 5287 states have internal predecessors, (6846), 2655 states have call successors, (2655), 565 states have call predecessors, (2655), 564 states have return successors, (2659), 2614 states have call predecessors, (2659), 2650 states have call successors, (2659) [2022-11-23 13:49:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8351 states to 8351 states and 12160 transitions. [2022-11-23 13:49:47,957 INFO L78 Accepts]: Start accepts. Automaton has 8351 states and 12160 transitions. Word has length 15 [2022-11-23 13:49:47,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:49:47,957 INFO L495 AbstractCegarLoop]: Abstraction has 8351 states and 12160 transitions. [2022-11-23 13:49:47,958 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) [2022-11-23 13:49:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8351 states and 12160 transitions. [2022-11-23 13:49:47,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 13:49:47,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:49:47,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:49:47,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:49:47,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:49:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:49:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 453556298, now seen corresponding path program 1 times [2022-11-23 13:49:47,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:49:47,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651146191] [2022-11-23 13:49:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:49:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:49:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:49:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:49:48,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:49:48,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651146191] [2022-11-23 13:49:48,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651146191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:49:48,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:49:48,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:49:48,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362887797] [2022-11-23 13:49:48,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:49:48,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:49:48,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:49:48,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:49:48,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:49:48,613 INFO L87 Difference]: Start difference. First operand 8351 states and 12160 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) [2022-11-23 13:49:51,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:49:54,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:49:58,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:00,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:03,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:50:03,957 INFO L93 Difference]: Finished difference Result 11361 states and 16405 transitions. [2022-11-23 13:50:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:50:03,958 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 [2022-11-23 13:50:03,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:50:04,039 INFO L225 Difference]: With dead ends: 11361 [2022-11-23 13:50:04,039 INFO L226 Difference]: Without dead ends: 11358 [2022-11-23 13:50:04,049 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 [2022-11-23 13:50:04,050 INFO L413 NwaCegarLoop]: 5196 mSDtfsCounter, 4975 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s 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, 14.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:50:04,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 7040 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1016 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2022-11-23 13:50:04,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11358 states. [2022-11-23 13:50:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11358 to 11353. [2022-11-23 13:50:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11353 states, 6992 states have (on average 1.3295194508009154) internal successors, (9296), 7212 states have internal predecessors, (9296), 3545 states have call successors, (3545), 815 states have call predecessors, (3545), 815 states have return successors, (3557), 3489 states have call predecessors, (3557), 3541 states have call successors, (3557) [2022-11-23 13:50:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11353 states to 11353 states and 16398 transitions. [2022-11-23 13:50:04,853 INFO L78 Accepts]: Start accepts. Automaton has 11353 states and 16398 transitions. Word has length 16 [2022-11-23 13:50:04,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:50:04,853 INFO L495 AbstractCegarLoop]: Abstraction has 11353 states and 16398 transitions. [2022-11-23 13:50:04,853 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) [2022-11-23 13:50:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 11353 states and 16398 transitions. [2022-11-23 13:50:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:50:04,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:50:04,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:50:04,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:50:04,857 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:50:04,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:50:04,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1172798891, now seen corresponding path program 1 times [2022-11-23 13:50:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:50:04,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044562847] [2022-11-23 13:50:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:50:04,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:50:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:50:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:50:05,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:50:05,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044562847] [2022-11-23 13:50:05,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044562847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:50:05,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:50:05,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:50:05,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712430926] [2022-11-23 13:50:05,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:50:05,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:50:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:50:05,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:50:05,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:50:05,460 INFO L87 Difference]: Start difference. First operand 11353 states and 16398 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) [2022-11-23 13:50:07,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:10,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:50:14,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:18,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:20,466 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 [] [2022-11-23 13:50:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:50:24,891 INFO L93 Difference]: Finished difference Result 20901 states and 30324 transitions. [2022-11-23 13:50:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:50:24,892 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 [2022-11-23 13:50:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:50:25,032 INFO L225 Difference]: With dead ends: 20901 [2022-11-23 13:50:25,032 INFO L226 Difference]: Without dead ends: 20897 [2022-11-23 13:50:25,048 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 [2022-11-23 13:50:25,049 INFO L413 NwaCegarLoop]: 5793 mSDtfsCounter, 4790 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 9715 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-23 13:50:25,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 9715 Invalid, 1267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1259 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2022-11-23 13:50:25,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20897 states. [2022-11-23 13:50:26,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20897 to 20893. [2022-11-23 13:50:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20893 states, 12861 states have (on average 1.3299898919213125) internal successors, (17105), 13256 states have internal predecessors, (17105), 6507 states have call successors, (6507), 1550 states have call predecessors, (6507), 1524 states have return successors, (6700), 6360 states have call predecessors, (6700), 6503 states have call successors, (6700) [2022-11-23 13:50:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20893 states to 20893 states and 30312 transitions. [2022-11-23 13:50:26,341 INFO L78 Accepts]: Start accepts. Automaton has 20893 states and 30312 transitions. Word has length 17 [2022-11-23 13:50:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:50:26,341 INFO L495 AbstractCegarLoop]: Abstraction has 20893 states and 30312 transitions. [2022-11-23 13:50:26,341 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) [2022-11-23 13:50:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 20893 states and 30312 transitions. [2022-11-23 13:50:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:50:26,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:50:26,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:50:26,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:50:26,344 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:50:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:50:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1994487661, now seen corresponding path program 1 times [2022-11-23 13:50:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:50:26,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492668441] [2022-11-23 13:50:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:50:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:50:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:50:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:50:27,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:50:27,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492668441] [2022-11-23 13:50:27,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492668441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:50:27,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:50:27,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:50:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754387634] [2022-11-23 13:50:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:50:27,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:50:27,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:50:27,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:50:27,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:50:27,037 INFO L87 Difference]: Start difference. First operand 20893 states and 30312 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) [2022-11-23 13:50:30,296 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 [] [2022-11-23 13:50:32,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:36,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:50:39,273 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 [] [2022-11-23 13:50:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:50:43,858 INFO L93 Difference]: Finished difference Result 23671 states and 34241 transitions. [2022-11-23 13:50:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:50:43,858 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 [2022-11-23 13:50:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:50:43,996 INFO L225 Difference]: With dead ends: 23671 [2022-11-23 13:50:43,996 INFO L226 Difference]: Without dead ends: 23663 [2022-11-23 13:50:44,011 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 [2022-11-23 13:50:44,012 INFO L413 NwaCegarLoop]: 5195 mSDtfsCounter, 4984 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 7039 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:50:44,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 7039 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1022 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-23 13:50:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23663 states. [2022-11-23 13:50:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23663 to 23658. [2022-11-23 13:50:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23658 states, 14573 states have (on average 1.3280724627736225) internal successors, (19354), 15024 states have internal predecessors, (19354), 7325 states have call successors, (7325), 1789 states have call predecessors, (7325), 1759 states have return successors, (7548), 7158 states have call predecessors, (7548), 7322 states have call successors, (7548) [2022-11-23 13:50:45,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23658 states to 23658 states and 34227 transitions. [2022-11-23 13:50:45,524 INFO L78 Accepts]: Start accepts. Automaton has 23658 states and 34227 transitions. Word has length 18 [2022-11-23 13:50:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:50:45,525 INFO L495 AbstractCegarLoop]: Abstraction has 23658 states and 34227 transitions. [2022-11-23 13:50:45,525 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) [2022-11-23 13:50:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 23658 states and 34227 transitions. [2022-11-23 13:50:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 13:50:45,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:50:45,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:50:45,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:50:45,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:50:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:50:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash 239907090, now seen corresponding path program 1 times [2022-11-23 13:50:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:50:45,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119868678] [2022-11-23 13:50:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:50:45,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:50:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:50:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:50:46,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:50:46,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119868678] [2022-11-23 13:50:46,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119868678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:50:46,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:50:46,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:50:46,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275624880] [2022-11-23 13:50:46,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:50:46,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:50:46,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:50:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:50:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:50:46,669 INFO L87 Difference]: Start difference. First operand 23658 states and 34227 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:50:52,158 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 [] [2022-11-23 13:50:54,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:00,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:02,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:07,971 INFO L93 Difference]: Finished difference Result 55315 states and 80089 transitions. [2022-11-23 13:51:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:07,971 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-23 13:51:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:08,140 INFO L225 Difference]: With dead ends: 55315 [2022-11-23 13:51:08,141 INFO L226 Difference]: Without dead ends: 31658 [2022-11-23 13:51:08,264 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 [2022-11-23 13:51:08,265 INFO L413 NwaCegarLoop]: 6290 mSDtfsCounter, 4610 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4614 SdHoareTripleChecker+Valid, 10668 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:08,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4614 Valid, 10668 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1411 Invalid, 3 Unknown, 0 Unchecked, 19.8s Time] [2022-11-23 13:51:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31658 states. [2022-11-23 13:51:10,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31658 to 31643. [2022-11-23 13:51:10,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31643 states, 19531 states have (on average 1.3311146382673698) internal successors, (25998), 20136 states have internal predecessors, (25998), 9778 states have call successors, (9778), 2375 states have call predecessors, (9778), 2333 states have return successors, (10065), 9554 states have call predecessors, (10065), 9775 states have call successors, (10065) [2022-11-23 13:51:10,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31643 states to 31643 states and 45841 transitions. [2022-11-23 13:51:10,668 INFO L78 Accepts]: Start accepts. Automaton has 31643 states and 45841 transitions. Word has length 58 [2022-11-23 13:51:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:10,668 INFO L495 AbstractCegarLoop]: Abstraction has 31643 states and 45841 transitions. [2022-11-23 13:51:10,669 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:51:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31643 states and 45841 transitions. [2022-11-23 13:51:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 13:51:10,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:10,682 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] [2022-11-23 13:51:10,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:51:10,682 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:10,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:10,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1246657777, now seen corresponding path program 1 times [2022-11-23 13:51:10,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:10,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845158917] [2022-11-23 13:51:10,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:10,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 13:51:11,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:11,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845158917] [2022-11-23 13:51:11,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845158917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:11,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:11,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:11,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419974095] [2022-11-23 13:51:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:11,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:11,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:11,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:11,276 INFO L87 Difference]: Start difference. First operand 31643 states and 45841 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:51:14,590 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 [] [2022-11-23 13:51:17,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:23,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:25,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:27,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:34,898 INFO L93 Difference]: Finished difference Result 75353 states and 108769 transitions. [2022-11-23 13:51:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:34,899 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2022-11-23 13:51:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:35,303 INFO L225 Difference]: With dead ends: 75353 [2022-11-23 13:51:35,303 INFO L226 Difference]: Without dead ends: 43711 [2022-11-23 13:51:35,459 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 [2022-11-23 13:51:35,460 INFO L413 NwaCegarLoop]: 5385 mSDtfsCounter, 3330 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:35,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 9746 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1346 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time] [2022-11-23 13:51:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43711 states. [2022-11-23 13:51:38,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43711 to 43698. [2022-11-23 13:51:38,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43698 states, 27019 states have (on average 1.3265479847514712) internal successors, (35842), 27853 states have internal predecessors, (35842), 13308 states have call successors, (13308), 3425 states have call predecessors, (13308), 3370 states have return successors, (13761), 13003 states have call predecessors, (13761), 13305 states have call successors, (13761) [2022-11-23 13:51:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43698 states to 43698 states and 62911 transitions. [2022-11-23 13:51:38,675 INFO L78 Accepts]: Start accepts. Automaton has 43698 states and 62911 transitions. Word has length 60 [2022-11-23 13:51:38,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:38,676 INFO L495 AbstractCegarLoop]: Abstraction has 43698 states and 62911 transitions. [2022-11-23 13:51:38,676 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:51:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 43698 states and 62911 transitions. [2022-11-23 13:51:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 13:51:38,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:38,687 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] [2022-11-23 13:51:38,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:51:38,687 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:38,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1780627383, now seen corresponding path program 1 times [2022-11-23 13:51:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:38,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329467769] [2022-11-23 13:51:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 13:51:39,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:39,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329467769] [2022-11-23 13:51:39,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329467769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:39,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:39,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:39,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939532289] [2022-11-23 13:51:39,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:39,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:39,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:39,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:39,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:39,481 INFO L87 Difference]: Start difference. First operand 43698 states and 62911 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) [2022-11-23 13:51:43,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:51:46,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:54,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:57,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:02,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:07,607 INFO L93 Difference]: Finished difference Result 118743 states and 171139 transitions. [2022-11-23 13:52:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:07,608 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 [2022-11-23 13:52:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:08,253 INFO L225 Difference]: With dead ends: 118743 [2022-11-23 13:52:08,256 INFO L226 Difference]: Without dead ends: 75046 [2022-11-23 13:52:08,412 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 [2022-11-23 13:52:08,413 INFO L413 NwaCegarLoop]: 7208 mSDtfsCounter, 4973 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 11601 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:08,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4979 Valid, 11601 Invalid, 1584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1579 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2022-11-23 13:52:08,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75046 states. [2022-11-23 13:52:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75046 to 75031. [2022-11-23 13:52:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75031 states, 46351 states have (on average 1.32704796013031) internal successors, (61510), 47772 states have internal predecessors, (61510), 22948 states have call successors, (22948), 5824 states have call predecessors, (22948), 5731 states have return successors, (23745), 22432 states have call predecessors, (23745), 22945 states have call successors, (23745) [2022-11-23 13:52:13,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75031 states to 75031 states and 108203 transitions. [2022-11-23 13:52:13,970 INFO L78 Accepts]: Start accepts. Automaton has 75031 states and 108203 transitions. Word has length 58 [2022-11-23 13:52:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:13,971 INFO L495 AbstractCegarLoop]: Abstraction has 75031 states and 108203 transitions. [2022-11-23 13:52:13,971 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) [2022-11-23 13:52:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 75031 states and 108203 transitions. [2022-11-23 13:52:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 13:52:13,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:13,994 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:52:13,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 13:52:13,994 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:13,995 INFO L85 PathProgramCache]: Analyzing trace with hash 463772082, now seen corresponding path program 1 times [2022-11-23 13:52:13,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195752524] [2022-11-23 13:52:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:13,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:52:15,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:15,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195752524] [2022-11-23 13:52:15,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195752524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:15,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:15,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:15,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85902306] [2022-11-23 13:52:15,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:15,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:15,514 INFO L87 Difference]: Start difference. First operand 75031 states and 108203 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:52:19,774 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 [] [2022-11-23 13:52:22,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:25,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:31,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:33,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:35,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:39,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:44,076 INFO L93 Difference]: Finished difference Result 174055 states and 251170 transitions. [2022-11-23 13:52:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-11-23 13:52:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:44,650 INFO L225 Difference]: With dead ends: 174055 [2022-11-23 13:52:44,651 INFO L226 Difference]: Without dead ends: 105695 [2022-11-23 13:52:44,914 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 [2022-11-23 13:52:44,915 INFO L413 NwaCegarLoop]: 7949 mSDtfsCounter, 4877 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 12126 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:44,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 12126 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1711 Invalid, 4 Unknown, 0 Unchecked, 23.4s Time] [2022-11-23 13:52:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105695 states. [2022-11-23 13:52:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105695 to 105681. [2022-11-23 13:52:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105681 states, 65353 states have (on average 1.327773782381834) internal successors, (86774), 67348 states have internal predecessors, (86774), 32264 states have call successors, (32264), 8194 states have call predecessors, (32264), 8063 states have return successors, (33379), 31542 states have call predecessors, (33379), 32261 states have call successors, (33379) [2022-11-23 13:52:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105681 states to 105681 states and 152417 transitions. [2022-11-23 13:52:51,042 INFO L78 Accepts]: Start accepts. Automaton has 105681 states and 152417 transitions. Word has length 68 [2022-11-23 13:52:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:51,042 INFO L495 AbstractCegarLoop]: Abstraction has 105681 states and 152417 transitions. [2022-11-23 13:52:51,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:52:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 105681 states and 152417 transitions. [2022-11-23 13:52:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 13:52:51,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:51,061 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] [2022-11-23 13:52:51,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 13:52:51,062 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1556762391, now seen corresponding path program 1 times [2022-11-23 13:52:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000287863] [2022-11-23 13:52:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:51,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:52,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:52:52,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:52,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000287863] [2022-11-23 13:52:52,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000287863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:52,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:52,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:52,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535924753] [2022-11-23 13:52:52,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:52,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:52,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:52,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:52,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:52,314 INFO L87 Difference]: Start difference. First operand 105681 states and 152417 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) [2022-11-23 13:52:55,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 13:52:59,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:02,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:05,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:53:08,310 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 [] [2022-11-23 13:53:14,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:53:14,781 INFO L93 Difference]: Finished difference Result 111450 states and 160534 transitions. [2022-11-23 13:53:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:53:14,782 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 [2022-11-23 13:53:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:53:15,275 INFO L225 Difference]: With dead ends: 111450 [2022-11-23 13:53:15,275 INFO L226 Difference]: Without dead ends: 111447 [2022-11-23 13:53:15,317 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 [2022-11-23 13:53:15,318 INFO L413 NwaCegarLoop]: 4609 mSDtfsCounter, 541 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 8809 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:53:15,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 8809 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time] [2022-11-23 13:53:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111447 states.