./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--video--fbdev--via--viafb.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/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_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/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_e28d0678-e430-4855-bc11-255bc59e529f/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 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 --- 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 14:23:45,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:23:45,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:23:45,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:23:45,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:23:45,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:23:45,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:23:45,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:23:45,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:23:45,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:23:45,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:23:45,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:23:45,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:23:45,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:23:45,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:23:45,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:23:45,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:23:45,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:23:45,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:23:45,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:23:45,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:23:45,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:23:45,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:23:45,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:23:45,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:23:45,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:23:45,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:23:45,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:23:45,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:23:45,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:23:45,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:23:45,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:23:45,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:23:45,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:23:45,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:23:45,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:23:45,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:23:45,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:23:45,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:23:45,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:23:45,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:23:45,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:23:45,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:23:45,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:23:45,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:23:45,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:23:45,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:23:45,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:23:45,369 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:23:45,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:23:45,369 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:23:45,369 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:23:45,371 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:23:45,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:23:45,371 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:23:45,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:23:45,372 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:23:45,372 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:23:45,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:23:45,373 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:23:45,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:23:45,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:23:45,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:23:45,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:23:45,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:23:45,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:23:45,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:23:45,375 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:23:45,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:23:45,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:23:45,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:23:45,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:45,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:23:45,378 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:23:45,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:23:45,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:23:45,378 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:23:45,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:23:45,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:23:45,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:23:45,379 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_e28d0678-e430-4855-bc11-255bc59e529f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 [2022-11-23 14:23:45,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:23:45,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:23:45,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:23:45,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:23:45,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:23:45,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 14:23:48,922 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:23:49,853 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:23:49,854 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 14:23:49,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/data/f4fbeaf94/05ad9f226993440995dccdb5518f6f14/FLAG6890370fe [2022-11-23 14:23:49,971 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/data/f4fbeaf94/05ad9f226993440995dccdb5518f6f14 [2022-11-23 14:23:49,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:23:49,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:23:49,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:49,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:23:49,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:23:49,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:49" (1/1) ... [2022-11-23 14:23:49,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e03b760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:49, skipping insertion in model container [2022-11-23 14:23:49,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:49" (1/1) ... [2022-11-23 14:23:49,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:23:50,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:56,644 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_e28d0678-e430-4855-bc11-255bc59e529f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2022-11-23 14:23:57,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:57,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:57,893 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_e28d0678-e430-4855-bc11-255bc59e529f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2022-11-23 14:23:57,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:58,318 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:58,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58 WrapperNode [2022-11-23 14:23:58,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:58,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:58,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:58,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:58,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:23:58,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:23:59,412 INFO L138 Inliner]: procedures = 861, calls = 10423, calls flagged for inlining = 291, calls inlined = 261, statements flattened = 16884 [2022-11-23 14:23:59,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:59,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:59,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:59,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:59,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:23:59,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:23:59,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:23:59,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:24:00,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:24:00,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:24:00,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:24:00,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (1/1) ... [2022-11-23 14:24:00,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:24:00,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:00,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:24:00,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28d0678-e430-4855-bc11-255bc59e529f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:24:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 14:24:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-23 14:24:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-23 14:24:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2022-11-23 14:24:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2022-11-23 14:24:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2022-11-23 14:24:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2022-11-23 14:24:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2022-11-23 14:24:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2022-11-23 14:24:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-23 14:24:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-23 14:24:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2022-11-23 14:24:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2022-11-23 14:24:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2022-11-23 14:24:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2022-11-23 14:24:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2022-11-23 14:24:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2022-11-23 14:24:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2022-11-23 14:24:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2022-11-23 14:24:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2022-11-23 14:24:00,952 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2022-11-23 14:24:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:24:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2022-11-23 14:24:00,953 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2022-11-23 14:24:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2022-11-23 14:24:00,954 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2022-11-23 14:24:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2022-11-23 14:24:00,961 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2022-11-23 14:24:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2022-11-23 14:24:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2022-11-23 14:24:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:24:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:24:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2022-11-23 14:24:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2022-11-23 14:24:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2022-11-23 14:24:00,963 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2022-11-23 14:24:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 14:24:00,963 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 14:24:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2022-11-23 14:24:00,963 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2022-11-23 14:24:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2022-11-23 14:24:00,964 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2022-11-23 14:24:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2022-11-23 14:24:00,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2022-11-23 14:24:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:24:00,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:24:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-23 14:24:00,965 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-23 14:24:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2022-11-23 14:24:00,966 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2022-11-23 14:24:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:24:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2022-11-23 14:24:00,966 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2022-11-23 14:24:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2022-11-23 14:24:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2022-11-23 14:24:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2022-11-23 14:24:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2022-11-23 14:24:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:24:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:24:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 14:24:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 14:24:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2022-11-23 14:24:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2022-11-23 14:24:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2022-11-23 14:24:00,968 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2022-11-23 14:24:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2022-11-23 14:24:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2022-11-23 14:24:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2022-11-23 14:24:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2022-11-23 14:24:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:24:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:24:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:24:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2022-11-23 14:24:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2022-11-23 14:24:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:24:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:24:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:24:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:24:00,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2022-11-23 14:24:00,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2022-11-23 14:24:00,981 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2022-11-23 14:24:00,981 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2022-11-23 14:24:00,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2022-11-23 14:24:00,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2022-11-23 14:24:00,982 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2022-11-23 14:24:00,982 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2022-11-23 14:24:00,982 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2022-11-23 14:24:00,982 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2022-11-23 14:24:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2022-11-23 14:24:00,983 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2022-11-23 14:24:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:24:00,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:24:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2022-11-23 14:24:00,984 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2022-11-23 14:24:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:24:00,984 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:24:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2022-11-23 14:24:00,985 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2022-11-23 14:24:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-23 14:24:00,985 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-23 14:24:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:24:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-23 14:24:00,986 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-23 14:24:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2022-11-23 14:24:00,986 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2022-11-23 14:24:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2022-11-23 14:24:00,986 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2022-11-23 14:24:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2022-11-23 14:24:00,986 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2022-11-23 14:24:00,987 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2022-11-23 14:24:00,988 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2022-11-23 14:24:00,990 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2022-11-23 14:24:00,990 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2022-11-23 14:24:00,991 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2022-11-23 14:24:00,991 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2022-11-23 14:24:00,992 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2022-11-23 14:24:00,993 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2022-11-23 14:24:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:24:00,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:24:00,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-11-23 14:24:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-11-23 14:24:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:24:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:24:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-11-23 14:24:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-11-23 14:24:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2022-11-23 14:24:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2022-11-23 14:24:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-23 14:24:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-23 14:24:01,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:24:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:24:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 14:24:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 14:24:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2022-11-23 14:24:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2022-11-23 14:24:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:24:01,001 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:24:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:24:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2022-11-23 14:24:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2022-11-23 14:24:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:24:01,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-23 14:24:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-23 14:24:01,010 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 14:24:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 14:24:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 14:24:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 14:24:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2022-11-23 14:24:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2022-11-23 14:24:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2022-11-23 14:24:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2022-11-23 14:24:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2022-11-23 14:24:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2022-11-23 14:24:01,011 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2022-11-23 14:24:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2022-11-23 14:24:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2022-11-23 14:24:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2022-11-23 14:24:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2022-11-23 14:24:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2022-11-23 14:24:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2022-11-23 14:24:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2022-11-23 14:24:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2022-11-23 14:24:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2022-11-23 14:24:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2022-11-23 14:24:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2022-11-23 14:24:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2022-11-23 14:24:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2022-11-23 14:24:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2022-11-23 14:24:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2022-11-23 14:24:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:24:01,013 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-23 14:24:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-23 14:24:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:24:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:24:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2022-11-23 14:24:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2022-11-23 14:24:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2022-11-23 14:24:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2022-11-23 14:24:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2022-11-23 14:24:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2022-11-23 14:24:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 14:24:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 14:24:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2022-11-23 14:24:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2022-11-23 14:24:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2022-11-23 14:24:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2022-11-23 14:24:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 14:24:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 14:24:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2022-11-23 14:24:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2022-11-23 14:24:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-23 14:24:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-23 14:24:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2022-11-23 14:24:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2022-11-23 14:24:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2022-11-23 14:24:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2022-11-23 14:24:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2022-11-23 14:24:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2022-11-23 14:24:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 14:24:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 14:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2022-11-23 14:24:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2022-11-23 14:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2022-11-23 14:24:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2022-11-23 14:24:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2022-11-23 14:24:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2022-11-23 14:24:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2022-11-23 14:24:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2022-11-23 14:24:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2022-11-23 14:24:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2022-11-23 14:24:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2022-11-23 14:24:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2022-11-23 14:24:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2022-11-23 14:24:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2022-11-23 14:24:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2022-11-23 14:24:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2022-11-23 14:24:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:24:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:24:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:24:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:24:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2022-11-23 14:24:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2022-11-23 14:24:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2022-11-23 14:24:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2022-11-23 14:24:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2022-11-23 14:24:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2022-11-23 14:24:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-23 14:24:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-23 14:24:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2022-11-23 14:24:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2022-11-23 14:24:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:24:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:24:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2022-11-23 14:24:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2022-11-23 14:24:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2022-11-23 14:24:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2022-11-23 14:24:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-23 14:24:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-23 14:24:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:24:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:24:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:24:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2022-11-23 14:24:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2022-11-23 14:24:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2022-11-23 14:24:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-23 14:24:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:24:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2022-11-23 14:24:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:24:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2022-11-23 14:24:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2022-11-23 14:24:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2022-11-23 14:24:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-23 14:24:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:24:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2022-11-23 14:24:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2022-11-23 14:24:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2022-11-23 14:24:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2022-11-23 14:24:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2022-11-23 14:24:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2022-11-23 14:24:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2022-11-23 14:24:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-23 14:24:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:24:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:24:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:24:01,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2022-11-23 14:24:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2022-11-23 14:24:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-23 14:24:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2022-11-23 14:24:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-23 14:24:01,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:24:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:24:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_add [2022-11-23 14:24:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_add [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2022-11-23 14:24:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2022-11-23 14:24:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2022-11-23 14:24:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-23 14:24:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-23 14:24:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:24:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:24:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:24:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:24:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2022-11-23 14:24:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2022-11-23 14:24:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2022-11-23 14:24:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2022-11-23 14:24:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2022-11-23 14:24:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-23 14:24:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-23 14:24:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2022-11-23 14:24:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2022-11-23 14:24:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2022-11-23 14:24:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2022-11-23 14:24:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:24:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:24:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:24:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2022-11-23 14:24:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2022-11-23 14:24:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2022-11-23 14:24:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2022-11-23 14:24:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-23 14:24:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-23 14:24:02,769 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:24:02,779 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:24:07,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:24:55,227 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:25:04,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:25:04,976 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:25:04,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:04 BoogieIcfgContainer [2022-11-23 14:25:04,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:25:04,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:25:04,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:25:04,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:25:04,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:49" (1/3) ... [2022-11-23 14:25:04,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5bc29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:04, skipping insertion in model container [2022-11-23 14:25:04,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:58" (2/3) ... [2022-11-23 14:25:04,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d5bc29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:04, skipping insertion in model container [2022-11-23 14:25:04,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:04" (3/3) ... [2022-11-23 14:25:04,992 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-23 14:25:05,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:25:05,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:25:05,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:05,393 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;@3536923e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:05,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:25:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) [2022-11-23 14:25:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 14:25:05,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:05,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:25:05,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:05,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash 849359712, now seen corresponding path program 1 times [2022-11-23 14:25:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955853108] [2022-11-23 14:25:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:07,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955853108] [2022-11-23 14:25:07,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955853108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:07,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:07,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:07,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757193684] [2022-11-23 14:25:07,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:07,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:07,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:07,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:07,417 INFO L87 Difference]: Start difference. First operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:25:08,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:17,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:18,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:21,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:23,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:25:26,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:30,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:32,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:35,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:37,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:25:39,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:41,660 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 14:25:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:43,303 INFO L93 Difference]: Finished difference Result 10167 states and 15578 transitions. [2022-11-23 14:25:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:25:43,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2022-11-23 14:25:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:43,367 INFO L225 Difference]: With dead ends: 10167 [2022-11-23 14:25:43,367 INFO L226 Difference]: Without dead ends: 6663 [2022-11-23 14:25:43,387 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 14:25:43,390 INFO L413 NwaCegarLoop]: 5848 mSDtfsCounter, 4930 mSDsluCounter, 4746 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 5 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 10594 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:43,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 10594 Invalid, 1029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1016 Invalid, 8 Unknown, 0 Unchecked, 35.2s Time] [2022-11-23 14:25:43,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-11-23 14:25:44,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6638. [2022-11-23 14:25:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 4016 states have (on average 1.3976593625498008) internal successors, (5613), 4337 states have internal predecessors, (5613), 2248 states have call successors, (2248), 374 states have call predecessors, (2248), 373 states have return successors, (2240), 2115 states have call predecessors, (2240), 2239 states have call successors, (2240) [2022-11-23 14:25:44,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 10101 transitions. [2022-11-23 14:25:44,234 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 10101 transitions. Word has length 39 [2022-11-23 14:25:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:44,236 INFO L495 AbstractCegarLoop]: Abstraction has 6638 states and 10101 transitions. [2022-11-23 14:25:44,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:25:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 10101 transitions. [2022-11-23 14:25:44,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:25:44,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:44,249 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:25:44,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:25:44,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash -632293037, now seen corresponding path program 1 times [2022-11-23 14:25:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:44,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477316041] [2022-11-23 14:25:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:44,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:45,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:25:45,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:25:45,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477316041] [2022-11-23 14:25:45,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477316041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:45,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:45,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:25:45,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974941702] [2022-11-23 14:25:45,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:45,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:25:45,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:25:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:25:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:25:45,777 INFO L87 Difference]: Start difference. First operand 6638 states and 10101 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:25:47,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:49,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:25:56,432 WARN L539 Checker$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 14:25:58,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:00,467 WARN L539 Checker$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 14:26:03,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:05,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:26:11,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:13,981 WARN L539 Checker$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 14:26:16,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:21,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:26:23,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:24,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:26:26,139 INFO L93 Difference]: Finished difference Result 19499 states and 29676 transitions. [2022-11-23 14:26:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:26:26,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2022-11-23 14:26:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:26:26,402 INFO L225 Difference]: With dead ends: 19499 [2022-11-23 14:26:26,403 INFO L226 Difference]: Without dead ends: 12866 [2022-11-23 14:26:26,441 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 14:26:26,443 INFO L413 NwaCegarLoop]: 5815 mSDtfsCounter, 4860 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 10453 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:26:26,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4863 Valid, 10453 Invalid, 1021 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1009 Invalid, 9 Unknown, 0 Unchecked, 39.6s Time] [2022-11-23 14:26:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12866 states. [2022-11-23 14:26:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12866 to 12859. [2022-11-23 14:26:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12859 states, 7778 states have (on average 1.3985600411416816) internal successors, (10878), 8407 states have internal predecessors, (10878), 4349 states have call successors, (4349), 732 states have call predecessors, (4349), 731 states have return successors, (4343), 4094 states have call predecessors, (4343), 4340 states have call successors, (4343) [2022-11-23 14:26:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12859 states to 12859 states and 19570 transitions. [2022-11-23 14:26:27,474 INFO L78 Accepts]: Start accepts. Automaton has 12859 states and 19570 transitions. Word has length 43 [2022-11-23 14:26:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:26:27,475 INFO L495 AbstractCegarLoop]: Abstraction has 12859 states and 19570 transitions. [2022-11-23 14:26:27,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 14:26:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 12859 states and 19570 transitions. [2022-11-23 14:26:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 14:26:27,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:26:27,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:26:27,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:26:27,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:26:27,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:26:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1164988777, now seen corresponding path program 1 times [2022-11-23 14:26:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:26:27,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296581753] [2022-11-23 14:26:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:26:27,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:26:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:26:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:26:28,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:26:28,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296581753] [2022-11-23 14:26:28,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296581753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:26:28,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:26:28,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:26:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263487825] [2022-11-23 14:26:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:26:28,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:26:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:26:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:26:28,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:26:28,620 INFO L87 Difference]: Start difference. First operand 12859 states and 19570 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:26:30,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:31,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:33,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:38,094 WARN L539 Checker$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 14:26:43,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:46,416 WARN L539 Checker$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 14:26:48,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:50,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:26:53,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:57,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:26:59,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:01,552 WARN L539 Checker$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 14:27:04,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:27:06,671 WARN L539 Checker$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 14:27:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:27:08,602 INFO L93 Difference]: Finished difference Result 36006 states and 54948 transitions. [2022-11-23 14:27:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:27:08,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2022-11-23 14:27:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:27:08,743 INFO L225 Difference]: With dead ends: 36006 [2022-11-23 14:27:08,743 INFO L226 Difference]: Without dead ends: 23152 [2022-11-23 14:27:08,809 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 14:27:08,811 INFO L413 NwaCegarLoop]: 6741 mSDtfsCounter, 4108 mSDsluCounter, 4674 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 11415 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:27:08,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4116 Valid, 11415 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1221 Invalid, 11 Unknown, 0 Unchecked, 39.1s Time] [2022-11-23 14:27:08,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23152 states. [2022-11-23 14:27:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23152 to 23125. [2022-11-23 14:27:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23125 states, 13983 states have (on average 1.4060645069012372) internal successors, (19661), 15166 states have internal predecessors, (19661), 7845 states have call successors, (7845), 1297 states have call predecessors, (7845), 1296 states have return successors, (7843), 7372 states have call predecessors, (7843), 7836 states have call successors, (7843) [2022-11-23 14:27:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23125 states to 23125 states and 35349 transitions. [2022-11-23 14:27:10,644 INFO L78 Accepts]: Start accepts. Automaton has 23125 states and 35349 transitions. Word has length 50 [2022-11-23 14:27:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:27:10,645 INFO L495 AbstractCegarLoop]: Abstraction has 23125 states and 35349 transitions. [2022-11-23 14:27:10,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:27:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 23125 states and 35349 transitions. [2022-11-23 14:27:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 14:27:10,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:27:10,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:27:10,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:27:10,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:27:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:27:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1549620940, now seen corresponding path program 1 times [2022-11-23 14:27:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:27:10,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272273141] [2022-11-23 14:27:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:27:10,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:27:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:27:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:27:12,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:27:12,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272273141] [2022-11-23 14:27:12,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272273141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:27:12,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:27:12,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:27:12,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395335962] [2022-11-23 14:27:12,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:27:12,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:27:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:27:12,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:27:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:27:12,379 INFO L87 Difference]: Start difference. First operand 23125 states and 35349 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-23 14:27:14,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:16,162 WARN L539 Checker$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 14:27:18,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:20,186 WARN L539 Checker$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 14:27:22,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:30,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:31,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:38,755 WARN L539 Checker$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 14:27:42,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:44,244 WARN L539 Checker$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 14:27:46,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:48,706 WARN L539 Checker$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 14:27:50,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:51,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:53,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:56,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:27:58,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:00,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:02,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:04,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:06,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:08,877 WARN L539 Checker$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 14:28:11,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:28:15,372 WARN L539 Checker$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 14:28:19,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:21,792 WARN L539 Checker$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 14:28:23,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:26,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:28,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:29,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:33,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:28:35,350 WARN L539 Checker$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 14:28:37,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:28:37,498 INFO L93 Difference]: Finished difference Result 53881 states and 83217 transitions. [2022-11-23 14:28:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:28:37,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2022-11-23 14:28:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:28:37,702 INFO L225 Difference]: With dead ends: 53881 [2022-11-23 14:28:37,702 INFO L226 Difference]: Without dead ends: 30761 [2022-11-23 14:28:37,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:28:37,814 INFO L413 NwaCegarLoop]: 5891 mSDtfsCounter, 1118 mSDsluCounter, 16672 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 1 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 22563 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:28:37,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 22563 Invalid, 2287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2269 Invalid, 17 Unknown, 0 Unchecked, 83.8s Time] [2022-11-23 14:28:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30761 states. [2022-11-23 14:28:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30761 to 23141. [2022-11-23 14:28:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23141 states, 13995 states have (on average 1.4057163272597357) internal successors, (19673), 15178 states have internal predecessors, (19673), 7845 states have call successors, (7845), 1297 states have call predecessors, (7845), 1300 states have return successors, (7851), 7376 states have call predecessors, (7851), 7836 states have call successors, (7851) [2022-11-23 14:28:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23141 states to 23141 states and 35369 transitions. [2022-11-23 14:28:40,159 INFO L78 Accepts]: Start accepts. Automaton has 23141 states and 35369 transitions. Word has length 56 [2022-11-23 14:28:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:28:40,160 INFO L495 AbstractCegarLoop]: Abstraction has 23141 states and 35369 transitions. [2022-11-23 14:28:40,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-23 14:28:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23141 states and 35369 transitions. [2022-11-23 14:28:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 14:28:40,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:28:40,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:28:40,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:28:40,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:28:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:28:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1524747817, now seen corresponding path program 1 times [2022-11-23 14:28:40,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:28:40,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595728346] [2022-11-23 14:28:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:28:40,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:28:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:28:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:28:41,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:28:41,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595728346] [2022-11-23 14:28:41,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595728346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:28:41,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:28:41,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:28:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260811675] [2022-11-23 14:28:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:28:41,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:28:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:28:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:28:41,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:28:41,506 INFO L87 Difference]: Start difference. First operand 23141 states and 35369 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:28:43,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:47,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:51,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:54,100 WARN L539 Checker$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 14:28:57,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:28:59,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:29:01,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:07,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:09,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:11,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:14,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:17,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:29:18,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:21,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:21,568 INFO L93 Difference]: Finished difference Result 46013 states and 70342 transitions. [2022-11-23 14:29:21,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:29:21,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2022-11-23 14:29:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:21,882 INFO L225 Difference]: With dead ends: 46013 [2022-11-23 14:29:21,883 INFO L226 Difference]: Without dead ends: 46010 [2022-11-23 14:29:21,910 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 14:29:21,914 INFO L413 NwaCegarLoop]: 5895 mSDtfsCounter, 4905 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 10594 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:21,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 10594 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1019 Invalid, 8 Unknown, 0 Unchecked, 38.7s Time] [2022-11-23 14:29:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46010 states. [2022-11-23 14:29:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46010 to 46001. [2022-11-23 14:29:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46001 states, 27825 states have (on average 1.4061814914645103) internal successors, (39127), 30180 states have internal predecessors, (39127), 15591 states have call successors, (15591), 2577 states have call predecessors, (15591), 2584 states have return successors, (15613), 14662 states have call predecessors, (15613), 15582 states have call successors, (15613) [2022-11-23 14:29:25,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46001 states to 46001 states and 70331 transitions. [2022-11-23 14:29:25,891 INFO L78 Accepts]: Start accepts. Automaton has 46001 states and 70331 transitions. Word has length 57 [2022-11-23 14:29:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:25,892 INFO L495 AbstractCegarLoop]: Abstraction has 46001 states and 70331 transitions. [2022-11-23 14:29:25,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:29:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 46001 states and 70331 transitions. [2022-11-23 14:29:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 14:29:25,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:25,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:25,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:29:25,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:29:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash -24478862, now seen corresponding path program 1 times [2022-11-23 14:29:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:25,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38944298] [2022-11-23 14:29:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:25,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:29:27,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:27,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38944298] [2022-11-23 14:29:27,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38944298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:27,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:27,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:29:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264841472] [2022-11-23 14:29:27,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:29:27,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:27,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:29:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:29:27,649 INFO L87 Difference]: Start difference. First operand 46001 states and 70331 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:29:29,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:31,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:37,271 WARN L539 Checker$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 14:29:39,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:44,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:29:46,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:48,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:52,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:54,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:56,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:57,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:59,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:02,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:05,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:30:07,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:08,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:10,670 INFO L93 Difference]: Finished difference Result 46068 states and 70415 transitions. [2022-11-23 14:30:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:30:10,670 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-23 14:30:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:10,921 INFO L225 Difference]: With dead ends: 46068 [2022-11-23 14:30:10,921 INFO L226 Difference]: Without dead ends: 46065 [2022-11-23 14:30:10,951 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 14:30:10,952 INFO L413 NwaCegarLoop]: 5902 mSDtfsCounter, 4940 mSDsluCounter, 4702 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4943 SdHoareTripleChecker+Valid, 10604 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:10,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4943 Valid, 10604 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1020 Invalid, 8 Unknown, 0 Unchecked, 41.4s Time] [2022-11-23 14:30:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46065 states. [2022-11-23 14:30:13,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46065 to 46058. [2022-11-23 14:30:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46058 states, 27860 states have (on average 1.4061019382627422) internal successors, (39174), 30215 states have internal predecessors, (39174), 15605 states have call successors, (15605), 2585 states have call predecessors, (15605), 2592 states have return successors, (15627), 14676 states have call predecessors, (15627), 15596 states have call successors, (15627) [2022-11-23 14:30:14,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46058 states to 46058 states and 70406 transitions. [2022-11-23 14:30:14,203 INFO L78 Accepts]: Start accepts. Automaton has 46058 states and 70406 transitions. Word has length 58 [2022-11-23 14:30:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 46058 states and 70406 transitions. [2022-11-23 14:30:14,204 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:30:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 46058 states and 70406 transitions. [2022-11-23 14:30:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 14:30:14,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:14,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:30:14,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:14,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash -760776646, now seen corresponding path program 1 times [2022-11-23 14:30:14,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:14,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206030241] [2022-11-23 14:30:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:14,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:15,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:15,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206030241] [2022-11-23 14:30:15,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206030241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:15,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:15,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:30:15,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591232630] [2022-11-23 14:30:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:15,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:30:15,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:15,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:30:15,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:30:15,547 INFO L87 Difference]: Start difference. First operand 46058 states and 70406 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:30:18,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:22,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:26,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:27,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:29,508 WARN L539 Checker$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 14:30:32,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:35,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:30:40,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:42,850 WARN L539 Checker$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 14:30:43,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:48,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:51,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:30:53,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:55,322 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 14:30:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:57,516 INFO L93 Difference]: Finished difference Result 46435 states and 70898 transitions. [2022-11-23 14:30:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:30:57,517 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2022-11-23 14:30:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:57,767 INFO L225 Difference]: With dead ends: 46435 [2022-11-23 14:30:57,767 INFO L226 Difference]: Without dead ends: 46432 [2022-11-23 14:30:57,795 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 14:30:57,797 INFO L413 NwaCegarLoop]: 5892 mSDtfsCounter, 4735 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 10597 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:57,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 10597 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1021 Invalid, 10 Unknown, 0 Unchecked, 40.2s Time] [2022-11-23 14:30:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46432 states. [2022-11-23 14:31:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46432 to 45818. [2022-11-23 14:31:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45818 states, 27696 states have (on average 1.4060875216637783) internal successors, (38943), 30032 states have internal predecessors, (38943), 15525 states have call successors, (15525), 2589 states have call predecessors, (15525), 2596 states have return successors, (15547), 14606 states have call predecessors, (15547), 15516 states have call successors, (15547) [2022-11-23 14:31:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45818 states to 45818 states and 70015 transitions. [2022-11-23 14:31:01,018 INFO L78 Accepts]: Start accepts. Automaton has 45818 states and 70015 transitions. Word has length 59 [2022-11-23 14:31:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:01,018 INFO L495 AbstractCegarLoop]: Abstraction has 45818 states and 70015 transitions. [2022-11-23 14:31:01,019 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:31:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45818 states and 70015 transitions. [2022-11-23 14:31:01,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 14:31:01,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:01,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:01,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:31:01,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:01,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:01,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2111166603, now seen corresponding path program 1 times [2022-11-23 14:31:01,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:01,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143348173] [2022-11-23 14:31:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:01,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:31:02,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:02,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143348173] [2022-11-23 14:31:02,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143348173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:02,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:02,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:31:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780715914] [2022-11-23 14:31:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:02,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:31:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:02,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:31:02,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:31:02,083 INFO L87 Difference]: Start difference. First operand 45818 states and 70015 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:31:04,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:08,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:12,468 WARN L539 Checker$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 14:31:15,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:17,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:20,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:31:26,515 WARN L539 Checker$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 14:31:29,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:31,114 WARN L539 Checker$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 14:31:33,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:36,936 WARN L539 Checker$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 14:31:40,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:31:42,170 WARN L539 Checker$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 14:31:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:44,421 INFO L93 Difference]: Finished difference Result 45829 states and 70025 transitions. [2022-11-23 14:31:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:31:44,422 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2022-11-23 14:31:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:44,649 INFO L225 Difference]: With dead ends: 45829 [2022-11-23 14:31:44,650 INFO L226 Difference]: Without dead ends: 45826 [2022-11-23 14:31:44,685 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 14:31:44,686 INFO L413 NwaCegarLoop]: 5902 mSDtfsCounter, 4930 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 10610 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:44,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 10610 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 11 Unknown, 0 Unchecked, 40.8s Time] [2022-11-23 14:31:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45826 states. [2022-11-23 14:31:47,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45826 to 45819. [2022-11-23 14:31:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45819 states, 27697 states have (on average 1.4060728598765209) internal successors, (38944), 30033 states have internal predecessors, (38944), 15525 states have call successors, (15525), 2589 states have call predecessors, (15525), 2596 states have return successors, (15547), 14606 states have call predecessors, (15547), 15516 states have call successors, (15547) [2022-11-23 14:31:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45819 states to 45819 states and 70016 transitions. [2022-11-23 14:31:47,557 INFO L78 Accepts]: Start accepts. Automaton has 45819 states and 70016 transitions. Word has length 60 [2022-11-23 14:31:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:47,558 INFO L495 AbstractCegarLoop]: Abstraction has 45819 states and 70016 transitions. [2022-11-23 14:31:47,558 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:31:47,558 INFO L276 IsEmpty]: Start isEmpty. Operand 45819 states and 70016 transitions. [2022-11-23 14:31:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:31:47,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:47,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:47,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:31:47,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:47,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:47,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1023577443, now seen corresponding path program 1 times [2022-11-23 14:31:47,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:47,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067105624] [2022-11-23 14:31:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:31:48,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:48,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067105624] [2022-11-23 14:31:48,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067105624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:48,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:48,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:31:48,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625946528] [2022-11-23 14:31:48,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:48,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:31:48,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:48,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:31:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:31:48,526 INFO L87 Difference]: Start difference. First operand 45819 states and 70016 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:31:50,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:00,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:03,649 WARN L539 Checker$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 14:32:05,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:12,092 WARN L539 Checker$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 14:32:14,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:15,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:20,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:21,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:24,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:26,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:29,125 INFO L93 Difference]: Finished difference Result 68702 states and 105006 transitions. [2022-11-23 14:32:29,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:29,125 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2022-11-23 14:32:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:29,570 INFO L225 Difference]: With dead ends: 68702 [2022-11-23 14:32:29,570 INFO L226 Difference]: Without dead ends: 68699 [2022-11-23 14:32:29,596 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 14:32:29,597 INFO L413 NwaCegarLoop]: 5815 mSDtfsCounter, 4907 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4912 SdHoareTripleChecker+Valid, 10526 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:29,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4912 Valid, 10526 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1006 Invalid, 8 Unknown, 0 Unchecked, 37.7s Time] [2022-11-23 14:32:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68699 states. [2022-11-23 14:32:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68699 to 68686. [2022-11-23 14:32:33,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68686 states, 41533 states have (on average 1.4063274986155587) internal successors, (58409), 45041 states have internal predecessors, (58409), 23272 states have call successors, (23272), 3869 states have call predecessors, (23272), 3880 states have return successors, (23310), 21893 states have call predecessors, (23310), 23263 states have call successors, (23310) [2022-11-23 14:32:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68686 states to 68686 states and 104991 transitions. [2022-11-23 14:32:33,787 INFO L78 Accepts]: Start accepts. Automaton has 68686 states and 104991 transitions. Word has length 61 [2022-11-23 14:32:33,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:33,788 INFO L495 AbstractCegarLoop]: Abstraction has 68686 states and 104991 transitions. [2022-11-23 14:32:33,788 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:32:33,788 INFO L276 IsEmpty]: Start isEmpty. Operand 68686 states and 104991 transitions. [2022-11-23 14:32:33,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 14:32:33,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:33,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:33,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:32:33,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1668046984, now seen corresponding path program 1 times [2022-11-23 14:32:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:33,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472283231] [2022-11-23 14:32:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:32:35,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:35,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472283231] [2022-11-23 14:32:35,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472283231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:35,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:35,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:35,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216795757] [2022-11-23 14:32:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:35,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:35,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:35,083 INFO L87 Difference]: Start difference. First operand 68686 states and 104991 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:32:37,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:41,548 WARN L539 Checker$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 14:32:45,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:48,521 WARN L539 Checker$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 14:32:51,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:53,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:59,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:02,621 WARN L539 Checker$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 14:33:05,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:09,244 WARN L539 Checker$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 14:33:12,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:13,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:15,795 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 14:33:18,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:18,216 INFO L93 Difference]: Finished difference Result 68696 states and 105000 transitions. [2022-11-23 14:33:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:33:18,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-23 14:33:18,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:18,639 INFO L225 Difference]: With dead ends: 68696 [2022-11-23 14:33:18,640 INFO L226 Difference]: Without dead ends: 68693 [2022-11-23 14:33:18,667 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 14:33:18,668 INFO L413 NwaCegarLoop]: 5847 mSDtfsCounter, 4764 mSDsluCounter, 4714 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 10561 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:18,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4767 Valid, 10561 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 9 Unknown, 0 Unchecked, 40.5s Time] [2022-11-23 14:33:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68693 states. [2022-11-23 14:33:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68693 to 68688. [2022-11-23 14:33:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68688 states, 41535 states have (on average 1.4063079330684964) internal successors, (58411), 45043 states have internal predecessors, (58411), 23272 states have call successors, (23272), 3869 states have call predecessors, (23272), 3880 states have return successors, (23310), 21893 states have call predecessors, (23310), 23263 states have call successors, (23310) [2022-11-23 14:33:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68688 states to 68688 states and 104993 transitions. [2022-11-23 14:33:23,486 INFO L78 Accepts]: Start accepts. Automaton has 68688 states and 104993 transitions. Word has length 62 [2022-11-23 14:33:23,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:23,486 INFO L495 AbstractCegarLoop]: Abstraction has 68688 states and 104993 transitions. [2022-11-23 14:33:23,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:33:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 68688 states and 104993 transitions. [2022-11-23 14:33:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-23 14:33:23,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:23,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:33:23,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:33:23,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:33:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash -171761408, now seen corresponding path program 1 times [2022-11-23 14:33:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:23,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851401195] [2022-11-23 14:33:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:33:24,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:33:24,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851401195] [2022-11-23 14:33:24,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851401195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:33:24,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:33:24,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:33:24,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223628176] [2022-11-23 14:33:24,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:33:24,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:33:24,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:33:24,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:33:24,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:33:24,529 INFO L87 Difference]: Start difference. First operand 68688 states and 104993 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:33:26,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:32,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:36,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:38,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:40,360 WARN L539 Checker$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 14:33:43,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:45,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:51,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:53,804 WARN L539 Checker$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 14:33:54,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:55,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:00,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:01,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:05,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:34:07,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:09,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:12,163 WARN L539 Checker$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 14:34:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:15,277 INFO L93 Difference]: Finished difference Result 170285 states and 260494 transitions. [2022-11-23 14:34:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:34:15,277 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), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-11-23 14:34:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:16,268 INFO L225 Difference]: With dead ends: 170285 [2022-11-23 14:34:16,269 INFO L226 Difference]: Without dead ends: 101585 [2022-11-23 14:34:16,753 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 14:34:16,754 INFO L413 NwaCegarLoop]: 6819 mSDtfsCounter, 4740 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 4 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 11495 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:16,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 11495 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1147 Invalid, 10 Unknown, 0 Unchecked, 46.1s Time] [2022-11-23 14:34:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101585 states. [2022-11-23 14:34:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101585 to 101485. [2022-11-23 14:34:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101485 states, 60765 states have (on average 1.4035875915411833) internal successors, (85289), 66260 states have internal predecessors, (85289), 34875 states have call successors, (34875), 5886 states have call predecessors, (34875), 5844 states have return successors, (35036), 32632 states have call predecessors, (35036), 34864 states have call successors, (35036) [2022-11-23 14:34:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101485 states to 101485 states and 155200 transitions. [2022-11-23 14:34:24,181 INFO L78 Accepts]: Start accepts. Automaton has 101485 states and 155200 transitions. Word has length 63 [2022-11-23 14:34:24,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:24,182 INFO L495 AbstractCegarLoop]: Abstraction has 101485 states and 155200 transitions. [2022-11-23 14:34:24,182 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), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:34:24,183 INFO L276 IsEmpty]: Start isEmpty. Operand 101485 states and 155200 transitions. [2022-11-23 14:34:24,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-23 14:34:24,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:24,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:24,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:34:24,194 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:34:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1160023840, now seen corresponding path program 1 times [2022-11-23 14:34:24,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:24,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85185327] [2022-11-23 14:34:24,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-23 14:34:26,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:26,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85185327] [2022-11-23 14:34:26,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85185327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:26,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:26,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:34:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18557616] [2022-11-23 14:34:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:26,181 INFO L87 Difference]: Start difference. First operand 101485 states and 155200 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:34:28,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:36,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:38,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:39,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:45,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:48,146 WARN L539 Checker$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 14:34:49,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:50,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:54,265 WARN L539 Checker$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 14:34:57,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:59,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:35:08,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:10,956 WARN L539 Checker$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 14:35:12,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:15,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:19,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:35:20,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:22,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:24,652 WARN L539 Checker$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 14:35:28,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:35:28,702 INFO L93 Difference]: Finished difference Result 233251 states and 360156 transitions. [2022-11-23 14:35:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:35:28,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-11-23 14:35:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:35:29,570 INFO L225 Difference]: With dead ends: 233251 [2022-11-23 14:35:29,571 INFO L226 Difference]: Without dead ends: 131771 [2022-11-23 14:35:30,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:35:30,289 INFO L413 NwaCegarLoop]: 5731 mSDtfsCounter, 2125 mSDsluCounter, 9782 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 667 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 15513 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:35:30,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 15513 Invalid, 2246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [667 Valid, 1568 Invalid, 11 Unknown, 0 Unchecked, 54.8s Time] [2022-11-23 14:35:30,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131771 states. [2022-11-23 14:35:38,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131771 to 101517. [2022-11-23 14:35:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101517 states, 60797 states have (on average 1.4033751665378227) internal successors, (85321), 66292 states have internal predecessors, (85321), 34875 states have call successors, (34875), 5886 states have call predecessors, (34875), 5844 states have return successors, (35036), 32632 states have call predecessors, (35036), 34864 states have call successors, (35036)