./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/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_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/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_f8e0c4c3-3885-4726-a229-2cdab589a919/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 985d0b4f5410b7b86e22865d3848eb73c5be61726c7bc3b3417d51bbad9e6359 --- 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 15:45:48,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:45:48,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:45:49,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:45:49,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:45:49,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:45:49,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:45:49,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:45:49,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:45:49,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:45:49,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:45:49,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:45:49,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:45:49,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:45:49,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:45:49,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:45:49,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:45:49,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:45:49,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:45:49,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:45:49,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:45:49,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:45:49,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:45:49,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:45:49,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:45:49,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:45:49,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:45:49,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:45:49,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:45:49,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:45:49,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:45:49,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:45:49,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:45:49,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:45:49,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:45:49,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:45:49,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:45:49,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:45:49,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:45:49,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:45:49,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:45:49,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:45:49,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:45:49,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:45:49,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:45:49,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:45:49,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:45:49,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:45:49,161 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:45:49,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:45:49,162 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:45:49,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:45:49,163 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:45:49,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:45:49,164 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:45:49,164 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:45:49,164 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:45:49,164 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:45:49,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:45:49,165 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:45:49,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:45:49,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:45:49,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:45:49,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:45:49,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:45:49,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:45:49,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:45:49,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:45:49,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:45:49,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:45:49,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:45:49,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:49,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:45:49,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:45:49,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:45:49,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:45:49,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:45:49,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:45:49,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:45:49,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:45:49,176 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_f8e0c4c3-3885-4726-a229-2cdab589a919/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 985d0b4f5410b7b86e22865d3848eb73c5be61726c7bc3b3417d51bbad9e6359 [2022-11-23 15:45:49,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:45:49,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:45:49,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:45:49,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:45:49,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:45:49,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2022-11-23 15:45:52,488 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:45:53,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:45:53,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2022-11-23 15:45:53,363 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/data/201005b6a/31905a85eb3543bb9c7bb91664c89f65/FLAG86261579a [2022-11-23 15:45:53,379 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/data/201005b6a/31905a85eb3543bb9c7bb91664c89f65 [2022-11-23 15:45:53,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:45:53,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:45:53,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:53,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:45:53,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:45:53,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:53" (1/1) ... [2022-11-23 15:45:53,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b48fb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:53, skipping insertion in model container [2022-11-23 15:45:53,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:45:53" (1/1) ... [2022-11-23 15:45:53,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:45:53,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:45:57,355 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_f8e0c4c3-3885-4726-a229-2cdab589a919/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[381757,381770] [2022-11-23 15:45:57,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:57,726 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:45:58,473 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_f8e0c4c3-3885-4726-a229-2cdab589a919/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i[381757,381770] [2022-11-23 15:45:58,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:45:58,836 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:45:58,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58 WrapperNode [2022-11-23 15:45:58,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:45:58,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:58,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:45:58,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:45:58,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,268 INFO L138 Inliner]: procedures = 504, calls = 2646, calls flagged for inlining = 220, calls inlined = 169, statements flattened = 5561 [2022-11-23 15:45:59,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:45:59,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:45:59,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:45:59,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:45:59,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:45:59,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:45:59,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:45:59,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:45:59,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (1/1) ... [2022-11-23 15:45:59,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:45:59,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:45:59,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:45:59,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e0c4c3-3885-4726-a229-2cdab589a919/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:45:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_settings [2022-11-23 15:45:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_settings [2022-11-23 15:45:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-23 15:45:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-23 15:45:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-23 15:45:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-23 15:45:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_byte [2022-11-23 15:45:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_byte [2022-11-23 15:45:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_work_func_t [2022-11-23 15:45:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_work_func_t [2022-11-23 15:45:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:45:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:45:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-23 15:45:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-23 15:45:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:45:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:45:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_settings [2022-11-23 15:45:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_settings [2022-11-23 15:45:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:45:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:45:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_rx_vlan_en [2022-11-23 15:45:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_rx_vlan_en [2022-11-23 15:45:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_write [2022-11-23 15:45:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_write [2022-11-23 15:45:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_disconnect [2022-11-23 15:45:59,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_disconnect [2022-11-23 15:45:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-23 15:45:59,733 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-23 15:45:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2022-11-23 15:45:59,734 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2022-11-23 15:45:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-23 15:45:59,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-23 15:45:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_speed [2022-11-23 15:45:59,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_speed [2022-11-23 15:45:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-23 15:45:59,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-23 15:45:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_read [2022-11-23 15:45:59,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_read [2022-11-23 15:45:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 15:45:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 15:45:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-23 15:45:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-23 15:45:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:45:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:45:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_nic_reset [2022-11-23 15:45:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_nic_reset [2022-11-23 15:45:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_eee_en [2022-11-23 15:45:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_eee_en [2022-11-23 15:45:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_read [2022-11-23 15:45:59,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_read [2022-11-23 15:45:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:45:59,739 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:45:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_eee_plus [2022-11-23 15:45:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_eee_plus [2022-11-23 15:45:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_disable_aldps [2022-11-23 15:45:59,740 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_disable_aldps [2022-11-23 15:45:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_dword [2022-11-23 15:45:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_dword [2022-11-23 15:45:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_adv_to_mmd_eee_adv_t [2022-11-23 15:45:59,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_adv_to_mmd_eee_adv_t [2022-11-23 15:45:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-23 15:45:59,742 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-23 15:45:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure pla_ocp_write [2022-11-23 15:45:59,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pla_ocp_write [2022-11-23 15:45:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:45:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:45:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:45:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:45:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:45:59,743 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:45:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:45:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:45:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_speed [2022-11-23 15:45:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_speed [2022-11-23 15:45:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:45:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:45:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_dword [2022-11-23 15:45:59,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_dword [2022-11-23 15:45:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:45:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_write [2022-11-23 15:45:59,747 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_write [2022-11-23 15:45:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:45:59,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:45:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_set_rx_early_timeout [2022-11-23 15:45:59,748 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_set_rx_early_timeout [2022-11-23 15:45:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:45:59,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:45:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_submit_rx [2022-11-23 15:45:59,749 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_submit_rx [2022-11-23 15:45:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:45:59,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:45:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:45:59,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:45:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_fc [2022-11-23 15:45:59,750 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_fc [2022-11-23 15:45:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:45:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_probe [2022-11-23 15:45:59,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_probe [2022-11-23 15:45:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 15:45:59,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 15:45:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:45:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-23 15:45:59,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-23 15:45:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:45:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:45:59,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:45:59,752 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_node [2022-11-23 15:45:59,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_node [2022-11-23 15:45:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 15:45:59,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 15:45:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-23 15:45:59,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-23 15:45:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-23 15:45:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-23 15:45:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_features [2022-11-23 15:45:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_features [2022-11-23 15:45:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 15:45:59,754 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 15:45:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_eee_en [2022-11-23 15:45:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_eee_en [2022-11-23 15:45:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_open [2022-11-23 15:45:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_open [2022-11-23 15:45:59,755 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-23 15:45:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-23 15:45:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-23 15:45:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-23 15:45:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_runtime_suspend_enable [2022-11-23 15:45:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_runtime_suspend_enable [2022-11-23 15:45:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:45:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:45:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_power_cut_en [2022-11-23 15:45:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_power_cut_en [2022-11-23 15:45:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_read [2022-11-23 15:45:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_read [2022-11-23 15:45:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-23 15:45:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-23 15:45:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_ethtool_get_eee [2022-11-23 15:45:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_ethtool_get_eee [2022-11-23 15:45:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail [2022-11-23 15:45:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail [2022-11-23 15:45:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:45:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_tally_reset [2022-11-23 15:45:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_tally_reset [2022-11-23 15:45:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-23 15:45:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-23 15:45:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_resume [2022-11-23 15:45:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_resume [2022-11-23 15:45:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:45:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:45:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:45:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure rxdy_gated_en [2022-11-23 15:45:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rxdy_gated_en [2022-11-23 15:45:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:45:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:45:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:45:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:45:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:45:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_set_rx_early_size [2022-11-23 15:45:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_set_rx_early_size [2022-11-23 15:45:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:45:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:45:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_splice [2022-11-23 15:45:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_splice [2022-11-23 15:45:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-23 15:45:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-23 15:45:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-23 15:45:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-23 15:45:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-23 15:45:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-23 15:45:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_get_coalesce [2022-11-23 15:45:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_get_coalesce [2022-11-23 15:45:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_word [2022-11-23 15:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_word [2022-11-23 15:45:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-23 15:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-23 15:45:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_rx_mode [2022-11-23 15:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_rx_mode [2022-11-23 15:45:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_ioctl [2022-11-23 15:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_ioctl [2022-11-23 15:45:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 15:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 15:45:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_disable_aldps [2022-11-23 15:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_disable_aldps [2022-11-23 15:45:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:45:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:45:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_change_mtu [2022-11-23 15:45:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_change_mtu [2022-11-23 15:45:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:45:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:45:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:45:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:45:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 15:45:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 15:45:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-23 15:45:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-23 15:45:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:45:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:45:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:45:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:45:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:45:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:45:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 15:45:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 15:45:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure mmd_eee_cap_to_ethtool_sup_t [2022-11-23 15:45:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mmd_eee_cap_to_ethtool_sup_t [2022-11-23 15:45:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-23 15:45:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-23 15:45:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:45:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:45:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_disable [2022-11-23 15:45:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_disable [2022-11-23 15:45:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_enable [2022-11-23 15:45:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_enable [2022-11-23 15:45:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-11-23 15:45:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-11-23 15:45:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2022-11-23 15:45:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2022-11-23 15:45:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:45:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:45:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_ethtool_set_eee [2022-11-23 15:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_ethtool_set_eee [2022-11-23 15:45:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-23 15:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-23 15:45:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:45:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-23 15:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-23 15:45:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:45:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:45:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:45:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 15:45:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 15:45:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure generic_ocp_write [2022-11-23 15:45:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_ocp_write [2022-11-23 15:45:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_nway_reset [2022-11-23 15:45:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_nway_reset [2022-11-23 15:45:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_coalesce [2022-11-23 15:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_coalesce [2022-11-23 15:45:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 15:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 15:45:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:45:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure tx_agg_align [2022-11-23 15:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_agg_align [2022-11-23 15:45:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:45:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_features_check [2022-11-23 15:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_features_check [2022-11-23 15:45:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:45:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:45:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_reg_write [2022-11-23 15:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_reg_write [2022-11-23 15:45:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_tx_timeout [2022-11-23 15:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_tx_timeout [2022-11-23 15:45:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-23 15:45:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-23 15:45:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:45:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure rx_agg_align [2022-11-23 15:45:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_agg_align [2022-11-23 15:45:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_get_wol [2022-11-23 15:45:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_get_wol [2022-11-23 15:45:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 15:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 15:45:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:45:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_start_rx [2022-11-23 15:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_start_rx [2022-11-23 15:45:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-23 15:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-23 15:45:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_indirect [2022-11-23 15:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_indirect [2022-11-23 15:45:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure __rtl_set_wol [2022-11-23 15:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __rtl_set_wol [2022-11-23 15:45:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_power_cut_en [2022-11-23 15:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_power_cut_en [2022-11-23 15:45:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_write_word [2022-11-23 15:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_write_word [2022-11-23 15:45:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_stop_rx [2022-11-23 15:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_stop_rx [2022-11-23 15:45:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-23 15:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-23 15:45:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_control_of_r8152 [2022-11-23 15:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_control_of_r8152 [2022-11-23 15:45:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:45:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-11-23 15:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-11-23 15:45:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:45:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_splice_init [2022-11-23 15:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_splice_init [2022-11-23 15:45:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_wol [2022-11-23 15:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_wol [2022-11-23 15:45:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-23 15:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-23 15:45:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 15:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 15:45:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2022-11-23 15:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2022-11-23 15:45:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:45:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:45:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mmd_read [2022-11-23 15:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mmd_read [2022-11-23 15:45:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_teredo_off [2022-11-23 15:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_teredo_off [2022-11-23 15:45:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:45:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-23 15:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-23 15:45:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-23 15:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-23 15:45:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:45:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:45:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_close [2022-11-23 15:45:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_close [2022-11-23 15:45:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_u1u2en [2022-11-23 15:45:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_u1u2en [2022-11-23 15:45:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure r8153_enable_aldps [2022-11-23 15:45:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure r8153_enable_aldps [2022-11-23 15:45:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_drop_queued_tx [2022-11-23 15:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_drop_queued_tx [2022-11-23 15:45:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 15:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 15:45:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure r8152_mdio_read [2022-11-23 15:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152_mdio_read [2022-11-23 15:45:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_control_of_r8152 [2022-11-23 15:45:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_control_of_r8152 [2022-11-23 15:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure r8152b_enable_aldps [2022-11-23 15:45:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure r8152b_enable_aldps [2022-11-23 15:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_mem [2022-11-23 15:45:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_mem [2022-11-23 15:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_control_of_r8152 [2022-11-23 15:45:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_control_of_r8152 [2022-11-23 15:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-23 15:45:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-23 15:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure ocp_read_byte [2022-11-23 15:45:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ocp_read_byte [2022-11-23 15:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8152_set_mac_address [2022-11-23 15:45:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8152_set_mac_address [2022-11-23 15:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure sram_write [2022-11-23 15:45:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure sram_write [2022-11-23 15:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_qlen [2022-11-23 15:45:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_qlen [2022-11-23 15:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 15:45:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 15:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:45:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:45:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2022-11-23 15:45:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2022-11-23 15:45:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:45:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2022-11-23 15:45:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2022-11-23 15:46:00,751 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:46:00,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:46:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:46:51,500 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:46:54,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:46:54,027 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:46:54,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:54 BoogieIcfgContainer [2022-11-23 15:46:54,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:46:54,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:46:54,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:46:54,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:46:54,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:45:53" (1/3) ... [2022-11-23 15:46:54,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517802c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:54, skipping insertion in model container [2022-11-23 15:46:54,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:45:58" (2/3) ... [2022-11-23 15:46:54,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517802c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:54, skipping insertion in model container [2022-11-23 15:46:54,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:54" (3/3) ... [2022-11-23 15:46:54,049 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--r8152.ko-entry_point.cil.out.i [2022-11-23 15:46:54,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:46:54,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:46:54,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:46:54,230 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;@40e99575, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:46:54,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:46:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 2400 states, 1317 states have (on average 1.296127562642369) internal successors, (1707), 1383 states have internal predecessors, (1707), 912 states have call successors, (912), 170 states have call predecessors, (912), 169 states have return successors, (906), 892 states have call predecessors, (906), 906 states have call successors, (906) [2022-11-23 15:46:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-23 15:46:54,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:54,264 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:54,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:46:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:54,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1929904126, now seen corresponding path program 1 times [2022-11-23 15:46:54,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:54,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243022954] [2022-11-23 15:46:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:54,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-11-23 15:46:56,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:46:56,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243022954] [2022-11-23 15:46:56,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243022954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:56,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:56,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:46:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148911423] [2022-11-23 15:46:56,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:56,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:46:56,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:46:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:46:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:46:56,397 INFO L87 Difference]: Start difference. First operand has 2400 states, 1317 states have (on average 1.296127562642369) internal successors, (1707), 1383 states have internal predecessors, (1707), 912 states have call successors, (912), 170 states have call predecessors, (912), 169 states have return successors, (906), 892 states have call predecessors, (906), 906 states have call successors, (906) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-23 15:46:58,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:02,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:04,082 WARN L539 Checker$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 15:47:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:07,379 INFO L93 Difference]: Finished difference Result 7048 states and 10541 transitions. [2022-11-23 15:47:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:47:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 192 [2022-11-23 15:47:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:07,440 INFO L225 Difference]: With dead ends: 7048 [2022-11-23 15:47:07,440 INFO L226 Difference]: Without dead ends: 4669 [2022-11-23 15:47:07,466 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 15:47:07,470 INFO L413 NwaCegarLoop]: 4128 mSDtfsCounter, 3349 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 7383 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:07,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 7383 Invalid, 516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 510 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 15:47:07,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4669 states. [2022-11-23 15:47:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4669 to 4663. [2022-11-23 15:47:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4663 states, 2566 states have (on average 1.2915042868277475) internal successors, (3314), 2676 states have internal predecessors, (3314), 1763 states have call successors, (1763), 334 states have call predecessors, (1763), 333 states have return successors, (1758), 1727 states have call predecessors, (1758), 1756 states have call successors, (1758) [2022-11-23 15:47:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4663 states to 4663 states and 6835 transitions. [2022-11-23 15:47:07,906 INFO L78 Accepts]: Start accepts. Automaton has 4663 states and 6835 transitions. Word has length 192 [2022-11-23 15:47:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:07,910 INFO L495 AbstractCegarLoop]: Abstraction has 4663 states and 6835 transitions. [2022-11-23 15:47:07,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-23 15:47:07,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4663 states and 6835 transitions. [2022-11-23 15:47:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-23 15:47:07,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:07,925 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:07,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:47:07,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:07,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -711906321, now seen corresponding path program 1 times [2022-11-23 15:47:07,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:47:07,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289076518] [2022-11-23 15:47:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:07,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:47:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:47:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-11-23 15:47:09,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:47:09,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289076518] [2022-11-23 15:47:09,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289076518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:47:09,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:47:09,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:47:09,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337440080] [2022-11-23 15:47:09,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:47:09,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:47:09,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:47:09,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:47:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:09,202 INFO L87 Difference]: Start difference. First operand 4663 states and 6835 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:47:11,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:15,411 WARN L539 Checker$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 15:47:17,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:20,354 INFO L93 Difference]: Finished difference Result 13706 states and 20072 transitions. [2022-11-23 15:47:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:47:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 200 [2022-11-23 15:47:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:20,439 INFO L225 Difference]: With dead ends: 13706 [2022-11-23 15:47:20,439 INFO L226 Difference]: Without dead ends: 9082 [2022-11-23 15:47:20,479 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 15:47:20,480 INFO L413 NwaCegarLoop]: 4954 mSDtfsCounter, 3228 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 8186 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:20,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 8186 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 586 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-23 15:47:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9082 states. [2022-11-23 15:47:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9082 to 9066. [2022-11-23 15:47:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9066 states, 4983 states have (on average 1.2903873168773832) internal successors, (6430), 5191 states have internal predecessors, (6430), 3423 states have call successors, (3423), 660 states have call predecessors, (3423), 659 states have return successors, (3420), 3359 states have call predecessors, (3420), 3416 states have call successors, (3420) [2022-11-23 15:47:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9066 states to 9066 states and 13273 transitions. [2022-11-23 15:47:21,132 INFO L78 Accepts]: Start accepts. Automaton has 9066 states and 13273 transitions. Word has length 200 [2022-11-23 15:47:21,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:21,133 INFO L495 AbstractCegarLoop]: Abstraction has 9066 states and 13273 transitions. [2022-11-23 15:47:21,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:47:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9066 states and 13273 transitions. [2022-11-23 15:47:21,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-23 15:47:21,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:21,142 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:21,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:47:21,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -379808179, now seen corresponding path program 1 times [2022-11-23 15:47:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:47:21,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419763645] [2022-11-23 15:47:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:47:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:47:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-11-23 15:47:21,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:47:21,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419763645] [2022-11-23 15:47:21,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419763645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:47:21,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:47:21,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:47:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337047848] [2022-11-23 15:47:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:47:21,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:47:21,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:47:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:47:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:21,952 INFO L87 Difference]: Start difference. First operand 9066 states and 13273 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 15:47:24,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:26,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:29,036 WARN L539 Checker$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 15:47:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:33,417 INFO L93 Difference]: Finished difference Result 25785 states and 37693 transitions. [2022-11-23 15:47:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:47:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2022-11-23 15:47:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:33,543 INFO L225 Difference]: With dead ends: 25785 [2022-11-23 15:47:33,543 INFO L226 Difference]: Without dead ends: 16758 [2022-11-23 15:47:33,605 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 15:47:33,606 INFO L413 NwaCegarLoop]: 4157 mSDtfsCounter, 2881 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 7363 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:33,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2882 Valid, 7363 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 563 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-11-23 15:47:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16758 states. [2022-11-23 15:47:34,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16758 to 16743. [2022-11-23 15:47:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16743 states, 9145 states have (on average 1.2881355932203389) internal successors, (11780), 9549 states have internal predecessors, (11780), 6338 states have call successors, (6338), 1260 states have call predecessors, (6338), 1259 states have return successors, (6337), 6218 states have call predecessors, (6337), 6331 states have call successors, (6337) [2022-11-23 15:47:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16743 states to 16743 states and 24455 transitions. [2022-11-23 15:47:34,722 INFO L78 Accepts]: Start accepts. Automaton has 16743 states and 24455 transitions. Word has length 207 [2022-11-23 15:47:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:34,724 INFO L495 AbstractCegarLoop]: Abstraction has 16743 states and 24455 transitions. [2022-11-23 15:47:34,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 15:47:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 16743 states and 24455 transitions. [2022-11-23 15:47:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-23 15:47:34,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:34,730 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:34,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:47:34,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:34,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:34,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1088014885, now seen corresponding path program 1 times [2022-11-23 15:47:34,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:47:34,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906854661] [2022-11-23 15:47:34,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:34,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:47:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:47:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-11-23 15:47:35,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:47:35,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906854661] [2022-11-23 15:47:35,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906854661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:47:35,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:47:35,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:47:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689552004] [2022-11-23 15:47:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:47:35,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:47:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:47:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:47:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:35,801 INFO L87 Difference]: Start difference. First operand 16743 states and 24455 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, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:47:37,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:40,828 WARN L539 Checker$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 15:47:42,887 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 15:47:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:47,627 INFO L93 Difference]: Finished difference Result 47634 states and 70212 transitions. [2022-11-23 15:47:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:47:47,628 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, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 207 [2022-11-23 15:47:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:47,920 INFO L225 Difference]: With dead ends: 47634 [2022-11-23 15:47:47,920 INFO L226 Difference]: Without dead ends: 30930 [2022-11-23 15:47:48,233 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 15:47:48,237 INFO L413 NwaCegarLoop]: 4809 mSDtfsCounter, 2999 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 7904 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:48,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 7904 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 590 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 15:47:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30930 states. [2022-11-23 15:47:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30930 to 30806. [2022-11-23 15:47:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30806 states, 16933 states have (on average 1.293864052441977) internal successors, (21909), 17712 states have internal predecessors, (21909), 11483 states have call successors, (11483), 2387 states have call predecessors, (11483), 2389 states have return successors, (11897), 11232 states have call predecessors, (11897), 11469 states have call successors, (11897) [2022-11-23 15:47:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30806 states to 30806 states and 45289 transitions. [2022-11-23 15:47:50,650 INFO L78 Accepts]: Start accepts. Automaton has 30806 states and 45289 transitions. Word has length 207 [2022-11-23 15:47:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:50,655 INFO L495 AbstractCegarLoop]: Abstraction has 30806 states and 45289 transitions. [2022-11-23 15:47:50,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:47:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30806 states and 45289 transitions. [2022-11-23 15:47:50,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-23 15:47:50,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:50,659 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:47:50,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:47:50,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash -632999707, now seen corresponding path program 1 times [2022-11-23 15:47:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:47:50,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370851815] [2022-11-23 15:47:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:47:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:47:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-11-23 15:47:51,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:47:51,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370851815] [2022-11-23 15:47:51,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370851815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:47:51,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:47:51,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:47:51,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145559578] [2022-11-23 15:47:51,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:47:51,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:47:51,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:47:51,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:47:51,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:51,713 INFO L87 Difference]: Start difference. First operand 30806 states and 45289 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:47:53,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:56,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:58,710 WARN L539 Checker$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 15:48:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:02,548 INFO L93 Difference]: Finished difference Result 33794 states and 49564 transitions. [2022-11-23 15:48:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:48:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 208 [2022-11-23 15:48:02,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:02,768 INFO L225 Difference]: With dead ends: 33794 [2022-11-23 15:48:02,769 INFO L226 Difference]: Without dead ends: 33791 [2022-11-23 15:48:02,789 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 15:48:02,790 INFO L413 NwaCegarLoop]: 4052 mSDtfsCounter, 3377 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 6299 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:02,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 6299 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-11-23 15:48:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33791 states. [2022-11-23 15:48:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33791 to 33774. [2022-11-23 15:48:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33774 states, 18485 states have (on average 1.2900189342710306) internal successors, (23846), 19343 states have internal predecessors, (23846), 12631 states have call successors, (12631), 2650 states have call predecessors, (12631), 2657 states have return successors, (13068), 12364 states have call predecessors, (13068), 12618 states have call successors, (13068) [2022-11-23 15:48:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33774 states to 33774 states and 49545 transitions. [2022-11-23 15:48:05,259 INFO L78 Accepts]: Start accepts. Automaton has 33774 states and 49545 transitions. Word has length 208 [2022-11-23 15:48:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:05,259 INFO L495 AbstractCegarLoop]: Abstraction has 33774 states and 49545 transitions. [2022-11-23 15:48:05,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:48:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 33774 states and 49545 transitions. [2022-11-23 15:48:05,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-23 15:48:05,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:05,266 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:48:05,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:48:05,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1850127656, now seen corresponding path program 1 times [2022-11-23 15:48:05,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:05,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836840411] [2022-11-23 15:48:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:05,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-11-23 15:48:06,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:06,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836840411] [2022-11-23 15:48:06,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836840411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:06,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:06,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157185483] [2022-11-23 15:48:06,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:06,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:06,407 INFO L87 Difference]: Start difference. First operand 33774 states and 49545 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:48:08,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:11,321 WARN L539 Checker$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 15:48:13,387 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 15:48:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:17,636 INFO L93 Difference]: Finished difference Result 33793 states and 49562 transitions. [2022-11-23 15:48:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:48:17,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 209 [2022-11-23 15:48:17,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:17,853 INFO L225 Difference]: With dead ends: 33793 [2022-11-23 15:48:17,853 INFO L226 Difference]: Without dead ends: 33790 [2022-11-23 15:48:17,873 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 15:48:17,874 INFO L413 NwaCegarLoop]: 4094 mSDtfsCounter, 3374 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 6341 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3376 Valid, 6341 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-11-23 15:48:17,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33790 states. [2022-11-23 15:48:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33790 to 33773. [2022-11-23 15:48:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33773 states, 18485 states have (on average 1.2899648363538003) internal successors, (23845), 19342 states have internal predecessors, (23845), 12630 states have call successors, (12630), 2650 states have call predecessors, (12630), 2657 states have return successors, (13068), 12364 states have call predecessors, (13068), 12618 states have call successors, (13068) [2022-11-23 15:48:20,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33773 states to 33773 states and 49543 transitions. [2022-11-23 15:48:20,384 INFO L78 Accepts]: Start accepts. Automaton has 33773 states and 49543 transitions. Word has length 209 [2022-11-23 15:48:20,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:20,386 INFO L495 AbstractCegarLoop]: Abstraction has 33773 states and 49543 transitions. [2022-11-23 15:48:20,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:48:20,387 INFO L276 IsEmpty]: Start isEmpty. Operand 33773 states and 49543 transitions. [2022-11-23 15:48:20,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-23 15:48:20,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:20,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:48:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:48:20,393 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1517669448, now seen corresponding path program 1 times [2022-11-23 15:48:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830375540] [2022-11-23 15:48:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-11-23 15:48:21,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:21,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830375540] [2022-11-23 15:48:21,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830375540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:21,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:21,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:21,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836173461] [2022-11-23 15:48:21,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:21,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:21,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:21,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:21,415 INFO L87 Difference]: Start difference. First operand 33773 states and 49543 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:48:23,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:26,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:28,534 WARN L539 Checker$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 15:48:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:32,704 INFO L93 Difference]: Finished difference Result 33792 states and 49560 transitions. [2022-11-23 15:48:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:48:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2022-11-23 15:48:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:32,904 INFO L225 Difference]: With dead ends: 33792 [2022-11-23 15:48:32,904 INFO L226 Difference]: Without dead ends: 33784 [2022-11-23 15:48:32,924 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 15:48:32,925 INFO L413 NwaCegarLoop]: 4120 mSDtfsCounter, 3371 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:32,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 6367 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-11-23 15:48:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33784 states. [2022-11-23 15:48:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33784 to 33767. [2022-11-23 15:48:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33767 states, 18480 states have (on average 1.2896103896103897) internal successors, (23832), 19336 states have internal predecessors, (23832), 12629 states have call successors, (12629), 2650 states have call predecessors, (12629), 2657 states have return successors, (13068), 12364 states have call predecessors, (13068), 12618 states have call successors, (13068) [2022-11-23 15:48:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33767 states to 33767 states and 49529 transitions. [2022-11-23 15:48:35,091 INFO L78 Accepts]: Start accepts. Automaton has 33767 states and 49529 transitions. Word has length 210 [2022-11-23 15:48:35,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:35,092 INFO L495 AbstractCegarLoop]: Abstraction has 33767 states and 49529 transitions. [2022-11-23 15:48:35,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 15:48:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 33767 states and 49529 transitions. [2022-11-23 15:48:35,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-23 15:48:35,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:35,100 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:48:35,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:48:35,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:35,101 INFO L85 PathProgramCache]: Analyzing trace with hash 807096054, now seen corresponding path program 1 times [2022-11-23 15:48:35,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:35,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897951965] [2022-11-23 15:48:35,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:35,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-11-23 15:48:36,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897951965] [2022-11-23 15:48:36,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897951965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:36,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:36,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:36,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62294885] [2022-11-23 15:48:36,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:36,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:36,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:36,141 INFO L87 Difference]: Start difference. First operand 33767 states and 49529 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:48:38,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:40,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:42,851 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 15:48:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:49,750 INFO L93 Difference]: Finished difference Result 96767 states and 142039 transitions. [2022-11-23 15:48:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:48:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 223 [2022-11-23 15:48:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:50,315 INFO L225 Difference]: With dead ends: 96767 [2022-11-23 15:48:50,316 INFO L226 Difference]: Without dead ends: 63039 [2022-11-23 15:48:50,575 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 15:48:50,576 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 3091 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:50,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 7730 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 622 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 15:48:50,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63039 states. [2022-11-23 15:48:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63039 to 62882. [2022-11-23 15:48:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62882 states, 34147 states have (on average 1.2825431223826398) internal successors, (43795), 35773 states have internal predecessors, (43795), 23668 states have call successors, (23668), 5032 states have call predecessors, (23668), 5066 states have return successors, (24918), 23178 states have call predecessors, (24918), 23657 states have call successors, (24918) [2022-11-23 15:48:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62882 states to 62882 states and 92381 transitions. [2022-11-23 15:48:54,776 INFO L78 Accepts]: Start accepts. Automaton has 62882 states and 92381 transitions. Word has length 223 [2022-11-23 15:48:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:54,777 INFO L495 AbstractCegarLoop]: Abstraction has 62882 states and 92381 transitions. [2022-11-23 15:48:54,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 15:48:54,777 INFO L276 IsEmpty]: Start isEmpty. Operand 62882 states and 92381 transitions. [2022-11-23 15:48:54,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-23 15:48:54,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:54,785 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:48:54,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:48:54,786 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:54,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:54,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1824258154, now seen corresponding path program 1 times [2022-11-23 15:48:54,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:54,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770136977] [2022-11-23 15:48:54,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:54,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2022-11-23 15:48:56,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:56,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770136977] [2022-11-23 15:48:56,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770136977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:56,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:56,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:56,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254835730] [2022-11-23 15:48:56,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:56,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:56,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:56,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:56,028 INFO L87 Difference]: Start difference. First operand 62882 states and 92381 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:48:58,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:02,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:04,203 WARN L539 Checker$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 15:49:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:08,384 INFO L93 Difference]: Finished difference Result 100429 states and 147349 transitions. [2022-11-23 15:49:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:49:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 243 [2022-11-23 15:49:08,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:08,775 INFO L225 Difference]: With dead ends: 100429 [2022-11-23 15:49:08,776 INFO L226 Difference]: Without dead ends: 37582 [2022-11-23 15:49:09,085 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 15:49:09,088 INFO L413 NwaCegarLoop]: 3238 mSDtfsCounter, 5 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6473 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:09,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6473 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 501 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 15:49:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37582 states. [2022-11-23 15:49:11,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37582 to 37522. [2022-11-23 15:49:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37522 states, 20285 states have (on average 1.2785802316982993) internal successors, (25936), 21258 states have internal predecessors, (25936), 14167 states have call successors, (14167), 3044 states have call predecessors, (14167), 3069 states have return successors, (14848), 13887 states have call predecessors, (14848), 14156 states have call successors, (14848) [2022-11-23 15:49:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37522 states to 37522 states and 54951 transitions. [2022-11-23 15:49:11,466 INFO L78 Accepts]: Start accepts. Automaton has 37522 states and 54951 transitions. Word has length 243 [2022-11-23 15:49:11,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:11,467 INFO L495 AbstractCegarLoop]: Abstraction has 37522 states and 54951 transitions. [2022-11-23 15:49:11,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-23 15:49:11,468 INFO L276 IsEmpty]: Start isEmpty. Operand 37522 states and 54951 transitions. [2022-11-23 15:49:11,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-23 15:49:11,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:11,470 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:11,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:49:11,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 675886259, now seen corresponding path program 1 times [2022-11-23 15:49:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:11,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700251709] [2022-11-23 15:49:11,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2022-11-23 15:49:14,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:14,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700251709] [2022-11-23 15:49:14,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700251709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:14,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:14,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:49:14,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256524653] [2022-11-23 15:49:14,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:14,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:49:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:49:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:49:14,158 INFO L87 Difference]: Start difference. First operand 37522 states and 54951 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:49:16,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:22,038 WARN L539 Checker$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 15:49:24,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:32,917 INFO L93 Difference]: Finished difference Result 69332 states and 101171 transitions. [2022-11-23 15:49:32,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:49:32,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 254 [2022-11-23 15:49:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:33,052 INFO L225 Difference]: With dead ends: 69332 [2022-11-23 15:49:33,052 INFO L226 Difference]: Without dead ends: 31849 [2022-11-23 15:49:33,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:49:33,203 INFO L413 NwaCegarLoop]: 3821 mSDtfsCounter, 5142 mSDsluCounter, 7224 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 2947 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 11045 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2947 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:33,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 11045 Invalid, 3874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2947 Valid, 924 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-23 15:49:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31849 states. [2022-11-23 15:49:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31849 to 31650. [2022-11-23 15:49:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31650 states, 17321 states have (on average 1.278679060100456) internal successors, (22148), 18134 states have internal predecessors, (22148), 11438 states have call successors, (11438), 2907 states have call predecessors, (11438), 2890 states have return successors, (11810), 11113 states have call predecessors, (11810), 11409 states have call successors, (11810) [2022-11-23 15:49:34,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31650 states to 31650 states and 45396 transitions. [2022-11-23 15:49:34,968 INFO L78 Accepts]: Start accepts. Automaton has 31650 states and 45396 transitions. Word has length 254 [2022-11-23 15:49:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:34,969 INFO L495 AbstractCegarLoop]: Abstraction has 31650 states and 45396 transitions. [2022-11-23 15:49:34,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:49:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 31650 states and 45396 transitions. [2022-11-23 15:49:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-23 15:49:34,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:34,974 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:34,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:49:34,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash 188685588, now seen corresponding path program 1 times [2022-11-23 15:49:34,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:34,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547031462] [2022-11-23 15:49:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:34,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-11-23 15:49:38,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:38,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547031462] [2022-11-23 15:49:38,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547031462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:38,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:38,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:49:38,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106141523] [2022-11-23 15:49:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:38,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:49:38,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:38,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:49:38,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:38,126 INFO L87 Difference]: Start difference. First operand 31650 states and 45396 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 15:49:40,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:44,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:46,243 WARN L539 Checker$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 15:49:50,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:50,306 INFO L93 Difference]: Finished difference Result 73932 states and 106155 transitions. [2022-11-23 15:49:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:49:50,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 279 [2022-11-23 15:49:50,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:50,674 INFO L225 Difference]: With dead ends: 73932 [2022-11-23 15:49:50,674 INFO L226 Difference]: Without dead ends: 42324 [2022-11-23 15:49:50,788 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 15:49:50,789 INFO L413 NwaCegarLoop]: 4000 mSDtfsCounter, 2883 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 7261 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:50,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 7261 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 15:49:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42324 states. [2022-11-23 15:49:53,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42324 to 42188. [2022-11-23 15:49:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42188 states, 22977 states have (on average 1.2766679723201462) internal successors, (29334), 24079 states have internal predecessors, (29334), 15408 states have call successors, (15408), 3824 states have call predecessors, (15408), 3802 states have return successors, (15898), 14980 states have call predecessors, (15898), 15374 states have call successors, (15898) [2022-11-23 15:49:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42188 states to 42188 states and 60640 transitions. [2022-11-23 15:49:53,327 INFO L78 Accepts]: Start accepts. Automaton has 42188 states and 60640 transitions. Word has length 279 [2022-11-23 15:49:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:53,328 INFO L495 AbstractCegarLoop]: Abstraction has 42188 states and 60640 transitions. [2022-11-23 15:49:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 15:49:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 42188 states and 60640 transitions. [2022-11-23 15:49:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-23 15:49:53,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:53,335 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:53,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:49:53,336 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash -282127355, now seen corresponding path program 1 times [2022-11-23 15:49:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:53,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820783676] [2022-11-23 15:49:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-11-23 15:49:54,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:54,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820783676] [2022-11-23 15:49:54,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820783676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:54,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:54,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:49:54,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949331129] [2022-11-23 15:49:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:54,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:49:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:54,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:49:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:54,492 INFO L87 Difference]: Start difference. First operand 42188 states and 60640 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-23 15:49:56,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:00,808 WARN L539 Checker$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 15:50:02,835 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 []